bluuebunny/crossref_metadata_2025 huggingface dataset:
PHENOLIC COMPOUNDS DYNAMIC DURING MACERATION-FERMENTATION PROCESS AT SUPERIORS RED WINES FROM BURGUND VARIETY
Authors: Mureşan Claudia
Published: December 2021

The determinations that were done in this study regarded the evolution of phenolic compounds during the maceration fermentation process that took place in rotating metallic tanks of red grapes from Burgund variety. It was shown of that the must colour and tint intensity variation and partial fermented must fractions, with addition of different sulphur dioxide concentration.

In the purpose to obtain extractive wines and intensely coloured, pectolitic external enzymatic mixtures was experienced during the maceration and fermentative processes, and for some technological phases improvement for primary wine making process.

During the hole period of study the antocians content was determined, the total polyphenols and as well the colour intensity and tint, as for the wines obtained with external enzymatic mixtures used during the maceration – fermentation process, as for the one which weren’t treated with enzymes.

The utilisation of exogenous enzymatic mixtures during the maceration fermentation process in correlation with optimal doses of SO2 and an adequate regime of rotating metallic tank spinning generated an improving in phenolic compounds extraction improving and colour intensity increasing for the obtained superior red wines.
DETERMINATION OF SULFONAMIDES IN CHICKEN MEAT BY SOLID PHASE EXTRACTION AND HIGH PERFORMANCE LIQUID CHROMATOGRAPHY
Authors: Matea C. T. , Bele C. , Dulf F.
Published: December 2021

This paper describes a method for the simultaneous detection and quantification of six sul-fonamides in chicken meat using normal phase cartridge clean-up and HPLC with UV detection . A liquid – liquid extraction and Sep- Pak silica clean-up procedure which minimizes the presence of halogenated solvents was used for sample preparation . The HPLC determination was performed using a RP C 18 column and sulfonamides were detected at 266 nm. Mobile phase was 0.01 M ammonium acetate pH 4.6 ( A ) and methanol ( B). Chromatographic separation was obtained by gradient elution ( 22 % B to 50 % within 17 min , back to 22 % in 2 min, equilibration for 5 min).Average recoveries of analytes from spiked meat were higher than 74 % .
AMINO ACIDS DETERMINATION IN CHEESE
Authors: Jimborean Mirela , Laslo C. , Ţibulcă D. , Culea Monica , Pintea Adela , Şteţca G.
Published: December 2021

Isotopic dilution gas chromatography-mass spectrometry (ID-GC/MS) is the techniques used for quantitative analysis of compounds labeled with stable isotopes. The aim of the work was to develop a simple and accurate analytical method to determine amino acids in some biological specimens by ID-GC/MS technique. A Trace DSQ ThermoFinnigan quadruple mass spectrometer coupled with a Trace GC was used. Amino acids were separated on a Rtx-5MS capillary column, 30 m x 0.25 mm, 0.25µm film thickness, using a temperature program from 50°C, 1 min, 6°C/min la 100°C, 4°C/min la 200°C, 20°C/min la 300°C, (3min). The free amino acids were determined during the ripening period.
Qualitative and quantitative markers to identify the quality and adulteration of olive oil with rapeseed oil
Authors: Dulf F. V. , Bele C. , Ungureşan Mihaela L. , Socaciu Carmen
Published: December 2021

The objective of this study was to develop a rapid and convenient chromatographic method for authenticity control of vegetable oils using the total sterol profile determined by gas-chromatography (GC) with flame ionization detector (FID). Two pure oils, rapeseed and olive oil, processed by minimal technologies (cold pressing) in Romania and an adulterated olive oil with 40 % of rapeseed oil were used as sample matrices in the method development. The rapeseed oil can be identified by the presence of brassicasterol (see peak number 2 in Figure 2.) which is characteristic mainly for this oil. In olive oil, this sterol is absent. The concentrations of b-sitosterol, campesterol and brassicasterol as well their ratios can identify the adulteration of virgine olive oil with rapeseed oil. High ratios b-sitosterol/ campesterol are specific to virgin olive oil (~ 27.5) while these ratios are low (~2) for rapeseed oil or adulterated olive oil. Also the ratio campesterol / brassicasterol can indicate the adulteration. This ratio is low (~2) for rapeseed oil and higher (~ 4.8) in extra virgin olive oil. Adulteration of olive oil with rapeseed oil determine the decrease of this ratio. In this work we report three ways to identify the quality and authenticity of olive oil. We found as well markers which indicate if the olive oil was adulterated with rapeseed oil.
GRAPE SEED EXTRACT COMPONENTS INDUCE STRESS SIGNALS IN A2780 HUMAN OVARIAN CELLS
Authors: Rugină Dumitriţa , Braicu C. , Ranga F. , Fetea F. , Petran M. , Neagoe I. , Socaciu Carmen
Published: December 2021

This study attempted to identify possible regulatory sites and mechanisms of antiapoptotic flavan-3-ols, focusing on reactive oxygen species mediated signaling in A2780 ovarian cancer cells. The cells were treated different concentrations of some rich flava-3-ols extracts. The results obtained for grape seed extract were compared to those of a standardized green tea extract. A concentration of 5 mg/ml grape seed extract induced apoptosis, producing intracellular high levels of reactive oxygen species through mitochondrial pathway. We noticed that 2.5 mg/ml grape seed extract reduce the expression of TNFa and the cellular proliferation. The overall data indicate that grape seed extract posses a potent protective effect against ovarian cancer cells, with dose-dependent characteristics.
RESEARCHES CONCERNING THE INFLUENCE OF THE VEGETAL PROTEIN SUPPLEMENTS PROPORTION ON THE COMPOSITION QUALITY IN THE MANUFACTURE OF A CERTAIN SEMI-SMOKED SALAMI ASSORTMENT
Authors: Sălăgean D. , Laslo C. , Ţibulcă D. , Apostu S.
Published: December 2021

The purpose of this performed research was to establish the influence of the usage proportion of protein supplements on the quality indicators of compositions meant for filling in the manufacture of a certain semi-smoked salami assortment.

Organoleptic and physical-chemical analyses were performed on the composition samples manufactured in three technological variants (for each case was used one processing recipe): using the manufacture technology without protein supplements (recipe A); using the manufacture technology with 3% vegetal protein supplements (recipe B) and 5% vegetal protein supplements (recipe C), where one part of animal raw material (meat, bacon) had been replaced with vegetal protein supplements (recipe B and C).
COMPARATIVE STUDY OF DIFFERENT ROSEMARY ESSENTIAL OIL
Authors: Socaci Sonia A. , Tofana Maria , Socaciu Carmen , Varban D. , Muste Sevastita
Published: December 2021

The present study includes researches regarding the composition of different varieties of rosemary essential oil. The essential oils were extracted from the plant material using the hydrodistillation technique. The analyses of the composition of essential oils were carried out by using a GC-MS system. The chemical constituents of the essential oil were separated and identified using the GC-MS NIST libraries.
EVALUATION OF THE MYCOTIC AND MYCOTOXIC CONTENT AND BAKERY FEATURES OF WHEAT FROM TRANSYLVANIA IN THE CONDITIONS OF THE YEAR 2005
Authors: Morar Oana Aniţa , Braicu Cornelia , Modoran Constanţa , Florian V.
Published: December 2021

This paper is willing to present preliminary results of the research (CNCSIS theme) which has the main scope to study the correlations between the mycotic and mycotoxic charge of the wheat seeds from Transylvania area and the bakery features of the flour obtained from these seeds.

Current data are referring to the mycotic and mycotoxic charge of the wheat seeds harvested in 2005 from 9 districts from Transylvania and the bakery features of the flour.
STUDIES REGARDING THE CHEMICAL COMPOSITION OF SEVERAL WHEAT SPECIES, FLOUR TYPES AND PASTES ASSORTMENTS
Authors: Raba Diana Nicoleta , Ghiulai Mirela Viorica , Jianu I.
Published: December 2021

This essay presents the comparative study of the chemical composition for two wheat species: Triticum aestivum and Triticum durum, two types of flour, obtained by grinding the two wheat species and 4 paste samples obtained from the soft weat flour and the hard wheat flour. The last ones have been harvested from different commercial centers owned by local and foreign producers. Using a NIR, INFRALUM, FT-10 cereal analyzer we determined the following physico – chemical characteristics: the gluten content, moisture level, the ash content, the total protein and the fats content, for the analysed samples. The obtained results have been analyzed and compared.
PRELIMINARY ASPECTS ABOUT THE CLARIFICATION OF SOME LIPID FRACTIONS FROM HOG’S LARD THROUGH CENTRIFUGATION AND TEMPERATURE DECREASE
Authors: Traşcă T. I. , Rinovetz A. , Cioban Camelia
Published: December 2021

This paper proposes to present the centrifugation operation with temperature decrease, as an alternative through physic methods for clarification of some lipid fractions through chemical methods such as the extraction with organic solvents. The experiments are made on hog’s lard.
VEGETATION, LANDUSE AND LANDSCAPE IN THE APUSENI MOUNTAINS, ROMANIA
Authors: Brinkmann Katja , Reif Albert
Published: December 2021

European landscapes are formed by human activities at least since Neolithic times (LANG 1994). For centuries highly diversified subsistence production supported the population. Agriculture, silvopastoralism, agroforestry practises and forest use were intensively amalgamated through the activities of the households (HASEL 1985, MANTEL 1990). Specialisation was not between landscapes and households, but within these. In order to meet human requirements through local production, it was necessary that the activities being carried out be highly diversified. The specific characteristics and production potentials of the sites were known from long tradition and observation, and were used in a site-adapted manner. The traditional land uses created a large variety of landscape structures, plant communities and habitats for animals. The species compositions and structural patterns reflect the different techniques and intensities of use, as well as the abiotic site conditions (ELLENBERG 1996).

Most landscape elements served for more than one function, depending also from season or long-term cyclic uses. The whole landscape was used intensively, with specific aims in space and time. In the case of grasslands, for example, hay production seasons changed with grazing periods. The traditional uses were limited by site restrictions, less developed infrastructure and technology, and the absence of electricity. On the community level, land use through subsistence production created a stable, self-supporting system. The land uses, including the separation of forest and grazing land, were neither stable nor permanently fixed. Spatial and temporary changes of land use, landscape structure and human activities were commonplace. Periods of forest exploitation, wood pasture and conversion to open grazing land were followed by periods of succession and forest regrowth, e.g. after wars or climatic fluctuations.

A typical region representing “actual land use and landscape transformation” are the villages of the Apuseni Mountains in Romania. The land use system, vegetation, landscape patterns and their actual changes were studied within an interdisciplinary, participatory “Proiect Apuseni” (RUŞDEA et al. 2005).
REDUCTION OF SOIL EROSION AND SOIL CARBON AND NUTRIENT LOSSES BY "REDUCED TILLAGE" CULTIVATION IN ARABLE LAND
Authors: Carlier Lucien , Vlahova Mariana , Rotar Ioan
Published: December 2021

Soil erosion can be considered, with different level of severity, an EU-wide problem. Erosion is a natural geological phenomenon resulting from the removal of soil particles by water or wind, transporting them elsewhere. However some human activities can dramatically increase erosion rates. Soil organic matter assures the binding and buffering capacity of the soil, an essential determinant of erosion resistance and soil fertility. Crops grown without tillage, use water more efficiently, the water-holding capacity of the soil increases, and water losses from runoff and evaporation are reduced. In addition, soil organic matter and populations of beneficial insects are maintained, soil and nutrients are less likely to be lost from the field and less time and labour is required to prepare the field for planting. Greater water-stability of surface soil aggregates, higher microbial activity and earthworm populations and higher total carbon can be found In general, the greatest advantages of reduced tillage are realized on soils prone to erosion and drought, but significant advantages are only seen after more than 10 years of application.
BIOLOGICAL METHOD OF STRUGGLE AGAINST THE BASIC WRECKERS OF THE SWEET CORN IN R. OF MOLDOVA
Authors: Timus Asea , Croitoru N.
Published: December 2021

Every year, the demand of ecological products in the world is increasing more and more. Republic of Moldova also aspires to expand the areas of agricultural crops to get production with the "ecological" status. The sweet corn, is one of these cultures and every year the areas increase. However, because of the considerable develop of harmful insects on cultural fields, the damage reaches up to 15-20 % and more it is necessary to take measures of struggle. One of these, is a biological method and in this case it has appeared effective.

For the period of sweet corn cultivation, excepting for the technology observance of cultivation of the given culture, there have been used biological methods of struggle against harmful insects. Depending on climatic conditions of each zone of the country where it is grown up this culture, different species of harmful insects develop. In R. Moldova, begining with year 2000, have been registered the following harmful species of insects on sweet corn: Aphis spp. (Aphididae); Agrotis spp. (Elateridae); Blaps halophila Fisch. (Tenebrionidae); Phylotreta spp. (Chrysomelidae); Helicoverpa armigera Hubner (Noctuidae) Ostrinia nubilalis Hb. (Pyraustidae). The constant useful fauna which develops due to these harmful species is: Nabis spp. (Miridae); Chrysopa spp., (Chrysopidae); Coccinella spp. (Coccinelidae) and others.

That is why, annually are let out individuals from species Trichogramma evanescens W., to reduce the number of harmful species H. armigera Hubner. This species annually damages on different cultures, including on sweet corn. The results on released trichogrammas in 2005, for struggle against harmful species H. armigera Hubner, are presented in this work.
ISOPEROXIDASES PATTERN OF ROBINIA PSEUDOACACIA VAR. OLTENICA IN VITRO CULTURE ON DIFFERENT MEDIA
Authors: Babeanu Cristina , Ciobanu Georgeta , Corneanu Mihaela , Marinescu Gabriela , Corneanu C. G.
Published: December 2021

In this work is studied the isoperoxidase pattern of the in vitro subculture of Robinia pseudoacacia var. oltenica, on various culture media, with various content of myo-inositol, humic acids and magnetic fluids. The electrophoretic separation of the isoperoxidases was performed from extracts obtained from 30 days’old vegetal material. The isoperoxidase fractions were characterized in terms of quantity and quality and a study of their thermal stability was performed. The obtained data show that the isoperoxidase activity is modulated in various ways by the presence of the studied factors into the culture medium.
RESEARCH CONCERNING THE WEEDING LEVEL OF CORN CROPS IN CLUJ COUNTY
Authors: Bogdan Ileana , Gus P. , Rusu T. , Gâdea Stefania
Published: December 2021

Processing of weeds control – is a very important aspect of the technologies of crops, and suppose the existence of an update date bank concerning these crops weeding, so that, the control strategies to be established in full knowledge, under the aspect of weeds composition, under the aspect of some specie dominance and weeding evolution on an ecological territory, homogeny, and also under the aspect of pedoclimatic and technological influence in the level of weed incidence in crops and the control methods within the agricultural ecosystem. The present paper presents the results of the determination of weeding level with all its compound, which took place in the 2001-2004 period in 5 pedoclimatic areas in Cluj county, being favorable for the main crops: Ist area – Cîmpia Turzii; IInd area – Ceanu Mare; IIIrd area – Cluj-Dej; IVth-area – Panticeu; Vth- – Huedin-Iara. The stationeries in which the experiments took place in different areas from the five pedoclimatic areas, on different types of soils: in the 1st zone – 4 counties and 3 types of soil, in the 2nd - 6 counties and 3 types of soil, in the 3rd - 8 counties and 3 types of soil, in the 4th – 4 counties and 2 types of soil and in the 5th zone – 6 counties and 3 types of soil. The weeding level is diverse under the aspect of composition and frequency in the 5 areas taken into study, and the influence of the soil type is observed in several cases detailed in the paper.
MOLECULAR DESCRIPTORS FAMILY ON STRUCTURE-ACTIVITY RELATIONSHIPS: MODELING HERBICIDAL ACTIVITY OF SUBSTITUTED TRIAZINES CLASS
Authors: Bolboacă S. D. , Jäntschi L.
Published: December 2021

Herbicidal activity of a set of thirty 1,3,5-substituted-triazines were studied using an original structure-activity relationships approach. The cross-validation leave-one-out correlation score, the training vs. test analysis, and the model stability sustained the prediction ability of the best performing multi-varied model with four variables. The comparison with the previous reported model was performed by the use of correlated correlation analysis. The obtained multi-varied MDF-SAR model with four-descriptors shows that the herbicidal activity of 1,3,5-substituted-triazines is of geometrical and topological nature and is strongly depended on partial charges and number of directly bonded hydrogen’s.
PRELIMNARY RESULTS ON MARKER ASSISTED SELECTION FOR DISEASE RESISTANCE IN COMMON WHEAT (TRITICUM AESTIVUM)
Authors: Botez C. , Iuoraş Monica , Raica P. , Saulescu N. N.
Published: December 2021

Our attempts to find RAPD markers linked with resistance genes to Septoria and Tilletia relying on co-segregation and to test the SSR markers, identified in literature, in order to select bread wheat resistant to Septoria and Tilletia are presented. Several candidate RAPD markers possibly linked with Septoria resistance genes and fewer linked with Tilletia resistance genes were identified. Some RAPD and SSR markers were specific for some resistant lines. These markers, probably, marked different resistance genes in different lines. It seems that some Septoria resistance genes came from rye genome because these genes were marked with some primers specific for rye genome. We found segregation for these markers in several lines, indicating that the analyzed lines were not completely stabilized. The ISSR markers used could not discriminate the resistant from susceptible genotypes to Septoria and Tilletia.
RESEARCHES CONCERNING THE RELATIONSHIP BETWEEN THE TRUNK GROWING AND THE FRUITS PRODUCTIONS, UNDER THE INFLUENCE OF IRRIGATION AND FERTILIZATION WITH NITROGEN
Authors: Calinovici I.
Published: December 2021

The researches were made on an apple tree plantation, on an experimental field organized within the Lipova’s fruit-growing basin.

The biological used material was the Starkrimson type, grafted on the father plant M9, being planted on bands of two rows at 1,5 m distance between trees from the band and on the row and 3,5 m between bands. Application of irrigation and fertilization with nitrogen determined significant efficiency of the trunk growing. The fertilized variants with 100 kg/ha nitrogen determined significant efficiency of 3,61 cm2 comparing to the fertilized variants of 50 kg/ha nitrogen and non fertilized variants. Irrigation at the level of 75% I.U.A. determined a significant efficiency of 4,82 cm2 of the transversal section of the trunk comparing to the non irrigated variants and those irrigated at the level of 50% I.U.A. determined a distinctly significant efficiency of 2,39 cm2 comparing to the non irrigated witness.

The growing of the trees’ trunk depends in a great measure of the initial measure of the thickness of the trunk. Under the non irrigation conditions the thickness growing of the trunk registered smaller values than under the non irrigation conditions with different norms. Relation between the growing efficiency and initial thickness of the trunk is more dependant as the level of supplying with water is lower.
THE POSIBILITIES OF ENERGETIC CROP USES IN ROMANIA
Authors: Chira Teodora , Ros V. , Gheres M. , Fechete L. , Ranta O. , Molnar A.
Published: December 2021

In the last years the price of energy from conventional fuels increased and in the same time the price of agricultural products decreased. The farmer’s interest for energy production from agricultural source increased. For this reason the vegetable waste, the agricultural secondary products, the primary agricultural products like rape or sun flowers, animals manure and not in the last time short rotation crop become possible renewable energy sources for farmers. In this paper is presented the Romania’s potential of main energetic crops and the conversion technology to obtain renewable energy for cover energetic needs in agricultural farms.
PREVENTING SOIL EROSION ON SLOPES WITH SOME SPECIES AND PERENIAL GRADDES MIXTURES, ON NORD-WEST OF TRANSYLVANIA
Authors: Dîrja M. , Holonec L. , Jurian M. , Aldea Florica , Banole I.
Published: December 2021

It is very important knowing and studying the spontaneous and cultivated vegetation in order to arrange and to capitalize the eroded soil where the vegetation has a big influence in soil protection.

The experience between 2003-2005 showed the efficiency of the perennial greengrasses cultures mixted with grasses and leguminous against soil erosion.
RESEARCH CONCERNING THE OPTIMISING OF TOBACO CROP TECHNOLOGY IN CLUJ AREA
Authors: Duda M. M. , Vârban D. I.
Published: December 2021

In this paper there are presented the results of the research concerning the fertilization and fixing the optimum thickness at tobacco growing,the TN 86 sort,in Cluj-Napoca, year 2004. 10 versions of fertilization with N, P, K and Mg were studied in different doses. 7 versions were studied in the thickness case, with different space between the lines and the plants.
TECHNICAL AND ECONOMICAL ANALYSIS OF BIOENERGY PRODUCTION
Authors: Ghereş M. I. , Roş V. , Chira Teodora , Fechete L. V. , Molnar A. , Ranta O.
Published: December 2021

In the paper is presented a study regarding the bio-energetic potential of agricultural crops and the evaluation possibilities of agricultural wastes for energetic proposes. In the study is analyzed, from technical and economical point of view, the phases of energy from solid biomass conversion. The authors proposed an agricultural farm for the evaluation of energetic potential of agricultural solid biomass as a fuel.
CONTROL OF POSTHARVEST FRUIT ROT IN APRICOT AND PEACH BY METSCHNIKOWIA PULCHERRIMA
Authors: Grebenisan Irina , Cornea Calina Petruta , Mateescu Rodica , Olteanu Violeta , Voaides Catalina
Published: December 2021

Monilinia spp. is one of the most important pathogens that cause preharvest and postharvest rots of apricot and peach fruit. To manage the fungicide resistance, a reduced-risk biofungicide based on antagonistic yeasts were tested against Monilinia spp. mold on Dacia apricot and peach cultivars.

The yeasts Metschnikowia pulcherrima were tested as a postharvest treatment to control rots of apricot and peach fruit. The yeasts were sprayed at concentration of 2 x 106 CFU/ml and 6 x 106 CFU/ml onto apricot and peach fruit. Biological treatment with M. pulcherrima reduced the incidence of fruit rot during postharvest storage at 4°C by 100%.
INTEGRATED AGROECOLOGICAL CONTROL OF WHEAT APHIDS AND CICADES, STANDING FOR ENVIRONMENT-AGRICTURE-SUSTAINABLE DEVELOPMENT INTERRELATION, IN TRANSYLVANIA
Authors: Malschi Dana , Stan G. , Mureşanu Felicia , Nagy Elena , Ştefănescu Maria
Published: December 2021

The study has like objective, the modernize of integrated control management of aphids and cicades, vectors of wheat yellowishing and dwarf, by optimizing environment-agricture-sustainable development relations. The produced damages on wheat by aphids and cicades, justify the proposed research approaching. Pointed out by as on the last 30 years, the aphids dominante species Sitobion avenae, Schizaphis graminum, Metopolophium dirhodum, Rophalosiphum padi and the cicades: Psammotettix alienus, Macrosteles laevis, Javesella pellucida are registered and well knowed like vectors. Approaching a problem of economical importance and of actual scientific large interest, at national and European level, especially in conditions of profound agro-ecological changes brought by climatic warming and aridity, as the technologic and economic new conditions from agricultural area exploitations, the paper present complex researches, in systemic manner, concerning: knowledge of insects-vectors populations of viruses and micoplasma, which causes the cereals yellowishing, dwarf and nanisme; monitoring and settlement for the risk of this attack extending, with a increase potential, affecting the production of cereal grains cultures and which can causes sowing field compromise, especially of those find in monoculture or those sown early in September; the elaboration of a strategy for integrated agro-ecological control for these insects in Transylvania, through interdisciplinary research about the reductions methods of the attack in function of technological factors: selective insecticides, efficiency economic and ecologic, agro-technical methods and biotic factors: natural entomophagous; environmental protection, conservation and sustainable use of biodiversity.
MYROSINASE ACTIVITY IN ARMORACIA RUSTICANA
Authors: Mucete Daniela , Poiana Mariana , Jianu I. , Radu Florina
Published: December 2021

This work is part of a study, which is more complex regarding the activity of sinigrin-myrosinase complex. With the help of this study we are following the optimization and the characterization of myrosinase activity with the help of HPLC chromatography and the comparison of the obtained results by spectrophotometric analysis.

At different temperatures conditions, (25°C ÷ 75°C), and reaction time (30 ÷ 390 minutes) were determined sinigrin concentration in extract (CSinExtr) and sinigrin concentration consumed in enzymatic reaction (CSinCons) by HPLC analysis.

The appreciation of sinigrin-myrosinase system activity was done by transforming CSinExtr and CSinCons in μg/glucose/g sample*hour.

The best parameters, adequate to myrosinase maximum activity, in Armoracia rusticana extracts were the following: pH = 7, temperature of 55°C, and reaction time was of 210 minutes for rubbed out horseradish samples and of 240 minutes for unrubbed horseradish samples.
HPLC - PDA ANALYSIS OF CAROTENOIDS AND CHLOROPHYLLS FROM CUCURBITA PEPO L.CONVAR.GIROMONTINA FRUITS
Authors: Muntean E. , Lazăr V. , Muntean Nicoleta
Published: December 2021

A reversed-phase high-performance liquid chromatographic (HPLC) procedure, which operates with gradient elution and detection by a photodiode-array detector, has been developed to analyze both carotenoids and chlorophylls from the fruits of Cucurbita pepo L.convar.giromontina. HPLC analysis was performed on a system consisting of a 322 Kontron Instruments pumping system, a Rheodyne 7125 injection valve with 20 l loop, a Waters 990 photodiode array detector and a computer running Waters 990 software for data analysis. HPLC separations were achieved on a Nucleosil 120 - 5 C18 column, using the following mobile phases: A - acetonitrile : water (9 : 1) and B - ethyl acetate. The flow rate was 1 ml/ min. and the solvent gradient was as follows: initial conditions - 90% A, 10%B/ from 0 to 15 min. - 30%A, 70% B/ from 16 to 22 min. - 90%A, 10%B. Separations were monitored at 450 nm; peak identities were established by comparing their HPLC retention times and their on-line recorded VIS spectra with those of known reference compounds. Eleven carotenoids were identified: the major ones are -carotene and lutein, these being followed by smaller amounts of neoxanthin, violaxanthin, lactucaxanthin, -cryptoxanthin, -cryptoxanthin, -carotene 5,6-epoxide, -carotene, 9Z--carotene and 15Z--carotene. Besides carotenoids, the proposed procedure separates also chlorophylls a, a’, b, b’, pheophytins a, a’, b and piropheophytins a and b which were identified in unsaponified extracts based on their VIS spectra.
STUDIES UPON THE POSSIBILITIES OF THE BIOFUEL USE IN THE CASE OF DIESEL ENGINES USING THE WALL FILM INJECTION SYSTEM
Authors: Naghiu A. , Burnete N. , Chitoanu M.
Published: December 2021

The paper presents the possibilities of the “M” system diesel engines to work with biofuels (the green energy), with regard to the specific fuel consumption and level of pollution.

The experiments showed that the engines working on the base of wall film injection have a very large adaptability to biofuels. It must be done only few changes at the engines, regarding the form of the cylinder head, the material of the piston and the preheating of the fuel. So, their power and torque are slightly similar to the case of diesel oil use, the specific fuel consumption is in acceptable limits and the pollution has a major reduction.
AN ESSENTIAL REQUIREMENT OF SUSTAINABLE FARMING –THE ASSESSMENT OF THE PERFORMANCE OF THE EQUIPMENT USED FOR THE PLANT HEALTH TREATMENT IN VINES AND ORCHARDS
Authors: Nagy Elena Mihaela , Cota C. , Fodorean G. , Roman M.
Published: December 2021

Sustainable agriculture, where the fundamental condition is the resources preservation, promotes the rational use of these resources together with productivity, profitability and environment protection provision. The periodical assessment of the performance of the equipment for the vine and orchard spraying provide increased quality in spraying and an implicit reduction of the amount of pesticide applied, diminished work-related costs and, last but not least, diminished pollution of the environment. The stand presented allows for the accurate assessment of the features of the equipment for the vine and orchard spraying directly at the customer’s premises.
RESEARCHES REGARDING THE BEHAVIOR OF SOME CORN HYBRIDS PRODUCED ON A CYTOPLASMIC MALE-STERILITY AND FERTILITY RESTORATION IN COMPARATION WITH THEIR ANALOGUES WITH MALE-FERTILITY
Authors: Oroian Georgeta , Morar G. , Has I. , Has Voichita , Copandean Ana
Published: December 2021

Cytoplasm male sterility is used for producing hybrid corn seeds by reason of the economic efficiency and is also advantageous for genetic purity of seeds. Three types of male sterility cytoplasm in maize are used as cms maternal parents to produce hybrids: cms-C, cms-S. cms-T. Through this theme one has followed the realization of a comparative study between some hybrids obtained to Turda on C and T cytoplasm their homologues, developed with normal and through the castration of the maternal parents. The researches aimed mainly the phenotypic and genotypic variability of the hybrids, the degree of male-sterility and the capacity of production, in phytotechnic conditions in different densities
THE EVOLUTION OF BIODIVERSITY ON FESTUCA RUBRA MEADOW FOLOWING TO SOME SPECIFICAL TECHNOLOGIES IMPUTS TO SUSTAINABLE AGRICULTURE
Authors: Pacurar F. , Rotar I.
Published: December 2021

To receive precise results of manure influences on Festuca rubra meadows were studied on to types of soils: Terra rossa and Brown eu – mezobasic rendzina. Manure graduate dosages were established as: V1 - control, V2 - 10 t/ha manure, V3 - 20 t/ha manure, V4 - 30 t/ha manure. Changes on herbal phytocenoses are very close depending to the type of soils. The 20 and 30 t/ha of manure treatment applied increase the installation of the Poacee species in front of the Fabacee species and plant from other botanical families, but the treatment with 10 t/ha of manure maintain the equilibrium of the 3 mention groups because minimal changes are happens.
THE INFLUENCE OF CHEMICAL FERTILISERS WITH MICROELEMENT ON B1 AND B6 VITAMINS CONTENT ON GARDEN PEA. II. PARTIAL RESULTS
Authors: Palcu Sergiu , Câmpeanu G.
Published: December 2021

Chemical fertilisers with microelements are remarked by the permeability and excellent solubility , which bring a great performance in these utilisation on all types of vegetal cultures, and could be applied as much on the leafs and radicular, through all the methods of irrigation. Using these types of fertilisers in well established doses, depends on the fertilised vegetal species and the followed results, in the situation of. Papilionaceae family it will be favoured the roots development are growth, fruits quality improving and B1, B2 and B6 vitamins biosynthesis stimulation.

Because it is well known the action the biochemical role of thiamine and pyridoxine in the alive organism, in this work tried to demonstrate that the chemical fertilisers administration with microelements during the vegetation stage of pea’s, cause a qualitative superior products obtaining. In this senses it was remarked the increasing of capsules number and beans mass in pods, on the plant, respectively the thiamine contents increasing and the pyridoxine in the pea pods which came from fertilized plot.
THE EVOLUTION OF THE PLUVIOMETRIC CONDITIONS IN CONNECTION WITH THE DEVELOPMENT OF THE DROUGHT PHENOMENON IN THE PLAIN OF BANAT
Authors: Popa Veronica , Borza I.
Published: December 2021

The highlight of the climate dryness tendency, in a certain zone, can be realized through the ratio between the annual amount of precipitations and the multiannual average and through their deviation. Representing in a diagram the tendency equation it had been highlighted the evolution in long time of the annual precipitations, also with the drought periods and their frequency.
NEW TRENDS IN BIO-SYSTEMS ENGINEERING EDUCATION
Authors: Ros Victor , Mândru D. , Roş Olimpia , Ghereş M.
Published: December 2021

The paper presents and discuss the objectives of engineering education in the fields of Biosystems Engineering (e.g. Agricultural Engineering). A hybrid system of Engineering and Biosystems is developed. Based on this hybrid system the interrelations between the components of engineering and biological systems are developed. Curricula for Agro-food Products Processing Engineering master study programs were developed.
SOIL ENZYME ACTIVITIES UNDER CROP ROTATIONS SYSTEMS IN A BROWN LUVIC SOIL
Authors: Samuel Alina Dora , Domuţa C. , Şandor Maria
Published: December 2021

Actual and potential dehydrogenase and catalase and phosphatase activities were determined in the 0–20–, 20–40– and 40–60–cm layers of a brown luvic soil submitted to a complex tillage and crop rotation experiment. The soil under maize or wheat was more enzyme-active in the 6– than in the 2–crop rotation. In the 2–crop rotation, higher enzymatic activities were registered under wheat than under maize. In the 6–crop rotation, the enzymatic indicators of soil quality decreased, depending on the nature of crops and kind of fertilisers (mineral NP or farmyard manure), in the following order: farmyard-manured maize > minerally fertilised (m.f.) soybean > m.f. wheat > m.f. maize (plot 4) > m.f. maize (plot 1) > m.f. clover.
CITOLOGICAL ASPECTS OF THE ONOBRYCHIS GENUS
Authors: Tamas Elena
Published: December 2021

We have examined five species of the Onobrychis variety: O. viciifolia, O. crista-galli, O. caput-galli, O. montana and O. transcaucazica. For each one of these species, we have established the karyotype and determined the chromosome number, length, ploidy level, as well as some features of the pollen. We have identified both diploid and tetraploid species. The basic chromosomal number for the O.crista-galli species is eight, namely seven for the O. viciifolia, O. caput-galli, O. montana and O. transcaucazica species. Related to the length of the chromosomes, the largest dimensions are encountered at the O. viciifolia, while the smallest at O. transcaucazica.
RESEARCH CONCERNING THE POSIBILITY TO PRODUCE EARLY POTATOES CULTIVARS IN CLUJ AREA
Authors: Topan Calin , Morar G. , Vâtcă S. D. , Sîrbu Camelia
Published: December 2021

It is presented the experimental results concerning early potatoes production in a cold area (of Cluj) using cultivars with a rapid tuberoses capacity, means of springing stimulating and crop protection methods.
CONTRIBUTION TO THE WINTER WHEAT (Triticum aestivum sp.) CARBON BALANCE ELABORATION: CROP GROWTH AND BIOMASS MONITORING
Authors: Tourneur D. , Bodson B. , Aubinet M. , Vancutsem F. , Moureaux C. , Falisse A.
Published: December 2021

This field trial aimed to follow the crop development evolution, to measure its net primary production (NPP) and the exchanged carbon flows and to study the relations between them and the crop growth and development. The crop intercepted between 90 and 95 % of the PAR (Photosynthesis Active Radiation). During the period of intense growth, GLAI (Green Leaf Area Index) rised up to 3 m² per m². The VAI (Vegetation Area Index) measured following two methods was close to 5 at the end of the growth season. Aerial biomass carbon content has shown no variation (43%) and thus the biomass evolution has been parallel to the cumulated NPP evolution. Part of the carbon has been exported from the field by grains and straws (5.8 t C/ha), part has been incorporated into the soil through the residues and roots (3.0 t C/ha).
THE STUDY OF ECHINACEA PURPUREA (L.) MOENCH SPECIES VARIETIES, BIOLOGY AND ACTIVE PRINCIPLES CONTENT
Authors: Vârban D. I. , Duda M. M. , Varban Rodica , Oros Simona
Published: December 2021

Medicinal vegetal products of Echinacea radix (roots) or Echinacea herba (aerial part) are included among the products with an imunistimulatory action, and depending on the active principles they belong to the products with fenil-propionic compounds and imunomodulatory polizaharides.

The experience took place during 2004 and 2005, and as followed he fenology of Echinacea purpurea (L.) Moench with different origin received from several areas from Europe (8) and a population from Cluj, plants bred by seedlings.

Among the species taken into study, in the experimental years studied, Echinacea purpurea (L.) Moench, in climatic conditions from Cluj - Napoca, the latest proved to be: Porrentry-Switzerland and Population of Cluj-România, representing value for precocity growing in breeding programs.

Aerial parts had a major contribution to the total plants weight. It was noticed that, in each years studied, the species from Varşovia-Poland, Műnchen-Germany, Siena- Italy and Jena-Germany.

Among the studied species, in the two years of the experience, there weren`t any major differences concerning the content of fenil-propionic and imunostimulatory polizaharides.
THE DETERMINATION OF CHENOPODIUM ALBUM L. SEEDS RESPIRATION INTENSITY
Authors: Vâtcă Sorin D. , Gadea Stefania , Vatca Anamaria
Published: December 2021

Chenopodium album L. species, because of its high phonotypical adjusting capacity and its features received to increase its weeds value in the present being on 5 positions.

This present paper investigates an important physiological parameter, linked with Chenopodium album L. seeds respiration intensity on germination period. It was used a quantitative determination method for respiration intensity, titrimetrical, the investigation takes place according to Pfeffer method standards. There were used seeds of different age (6month, 1,2 and 3years), the experiences repeating at 3, 7 and 11 days The intensity of the respiratory process registered different values depending on seeds age, being higher at the seeds of 1 year age and lower at the seeds younger than 3 years.
NATURA 2000 NETWORK AN OPPORTUNITY FOR RURAL SPACE SUSTAINABLE DEVELOPMENT
Authors: Branzan Oana
Published: December 2021

Natura 2000 is a European network for natural protected areas. Common Agricultural Policy reform include a series of agri-environmental measures that have to be adapted to Natura 2000 conservation management requirements. Romanian territory could be characterized by a rich natural areas diversity and a series of habitats specified for 5 bio-geographical regions. Through agri-environmental measures a series of financial advantages could be pointed out for the farmers who chose to protect the environment or to sustain indirectly the Natura 2000 sites, for a common sustainable rural development. The Common Agricultural Policy have to be adapted to present demands and the implementation of the Natura 2000 network will be different for each rural space.
DIVERSITY AND ECONOMIC IMPORTANCE OF THE LEAF BEETLES (COLEOPTERA, CHRYSOMELIDAE) IN THE REPUBLIC OF MOLDOVA
Authors: Calestru Livia
Published: December 2021

The economic importance of the leaf beetles and their distribution according to the groups of damaged plants: forests and other sylvan plantations, cereal crops, fruit trees and berry plants, perennial herbage, vegetables, medicinal herbs and vine is presented in this thesis. Only 19 of the above species are harmful for plants, the others cause insignificant damage or they are indifferent.
DIVERSITY AND ECONOMIC IMPORTANCE OF LEAF-ROLLING WEEVILS (COLEOPTERA: RHYNCHITIDAE, ATTELABIDAE) ON THE TERRITORY OF MOLDOVA REPUBLIC
Authors: Munteanu Natalia
Published: December 2021

The economic value of leaf-rolling weevils of Moldova Republic and their distribution on groups of wreckers of kidneys, leaves and generative organs are given. Only 8 % among the revealed beetles’ species actually harm to plants, other species do not cause special harm, being potential wreckers or indifferent.

Dans le travail on donne l’importance économique des scarabées Rhynchitidae et Attelabidae (Coleoptera) et leur distribution selon les groupes des saboteurs des bourgeons, feuille et organismes génératifs. En réalité seulement 8 % parmi les espèces révélés Rhynchites et Attelabides causent des préjudices aux plantes, les autres espèces ne causent pas un dommage spécial, en étant les saboteurs potentiels ou indifférent.
PERSPECTIVES OF THE ORGANIC FARMING IN ROMANIA
Authors: Vidican Roxana , Rotar I. , Carlier R.
Published: December 2021

The development of ecological agriculture in Romania is based on the EU regulations and on Romanian ecological laws, provisions also existing in the National Program for Acquis Communautaire, as well as projects for the adopting of ecological production methods and the preservation of rural landscape. Romania is making an effort to harmonise agricultural and agro-environmental policies with the rest of the European Union: the National Plan for Agriculture and Rural Development was presented by Romania in October 2000.Considering the demand of organic products from the foreign markets and the prices paid for these products, organic farming can represent an important source of money for Romanian farmers The institutional framework must stimulate and sustain the Romanian agricultural producers in developing this type of agriculture.
ANTIFUNGAL ACTIVITY OF SOME AMINO ACIDS COMPLEXES AGAINST CANDIDA ALBICANS
Authors: Braicu Cornelia , Stanila Andeea , Rotar Ancuta Mihaela , Petran Mariana , Socaciu Carmen
Published: December 2021

The development of antifungal agents has lagged behind that of antibacterial agents, because fungi generally grow slowly and often in multicellular forms, they are more difficult to quantify than bacteria. This experiment was designed to evaluate the in vitro properties of the amino acids complexes as potential antifungal agent. We tested 4 amino acid complexes: Cu-lysine, Cu-methionine, Co-lysine and Co-methionine, at different concentrations. The end-points for cytotoxicity evaluation are: proliferation rate, lactate dehidrogenase activity (LDH). These two end-points gave similar results with the proliferation rate but the last methods seem to be more sensible. Cupper complexes especially those with methionine proved to have the higher activity against Candida albicans from all the amino acids complexes.
PACKING DESIGN ROLE FOR THE PROMOTION OF BEER ON THE MARKET OF TIMIS COUNTY
Authors: Cioban Camelia , Bordean Despina , Gogoasa I.
Published: December 2021

This paperwork presents the results following the market study concerning the investigation of the existing beer package types, the specification of the image among the consumers and their opinion about the shape, the size, the color, in one word about the design of the package.
EFFECT OF THE CHEMICAL COMPOSITION ON THE QUALITY OF FROZEN BREAD DOUGH
Authors: David Adriana Paula
Published: December 2021

. The main objective of this work was to determine the influence of formulation on the stability of bread dough during frozen storage. Bread doughs containing gluten and trehalose were submitted to mechanical freezing at -30° C and stored frozen for 45 days. Two types of instant yeast were tested: (A) for sweet doughs and (B) for savoury doughs. Specific volume was significantly affected by the yeast type, type A showing better effect than type B. Frozen storage of the doughs negatively affected the specific volume, crumb hardness and technological score of the bread. The addition of 5% trehalose had a beneficial effect on the cell survival rate for both the yeasts.
COMPARATIVE STUDIES ON FATTY ACID FINGERPRINT FROM TOTAL LIPIDS AND PHYTOSTEROL ESTERS OF SOME EDIBLE PLANT OILS
Authors: Dulf F. V. , Bele C. , Spinean Sonia , Chedea Veronica C. , Zegrean G. , Socaciu Carmen
Published: December 2021

The aim of our study was the identification of two categories of bioactive molecules, characteristic to functional oils: sunflower, soybean, rapeseed, linseed, and hempseed oil, processed from seeds in Romania.

Two separation and purification techniques, column chromatography and thin layer chromatography, were applied and the profiles of fatty acids from total lipids and phytosterol esters fraction was determined by GC-FID. Transesterification procedures were used for derivatization of fatty acids for GC analysis.

The main fatty acids from the studied oil samples were: oleic, linoleic and palmitic fatty acids.

Hemp oil is one of the few seed oils that contains both of omega-6 and omega-3, gamma-linolenic acid being one of relatively rare fatty acids. A 3.07% content of -linolenic acid was found.

Hemp oil proved to be the most rich in phytosterols, been recommended as a functional food.
ENVIRONMENTAL INFLUENCE ON SOME TOXIC INFECTIONS BURST
Authors: Gavrilescu Elena , Lungu Ionica , Gavrilescu B. F.
Published: December 2021

Alimentary toxic infection (ATI) are acute diseases with digestive manifestation in the large majority of cases as a result of consume of contaminated food with some microbial species and/or their toxins.

This paper is a study elaborated by taking in observation a number of 780 cases with diagnostic alimentary toxic infection at The Clinic Hospital “Victor Babeş”, Craiova – Infectious Diseases Clinic, during 01.01.2002 – 31.12.2005 as well as a study witch analysis the daily consume of additives enhanced foods by students and pupils. A quantitative and qualitative retrospective and prospective analyses of these patients was undertaken using the clinical observation papers as databases, the hospitalization register and a research study on a group of 32 students from the first year in Faculty of Medicine and Pharmacies, Craiova. All gathered data were statistical interpreted. The following conclusions were obtained: ATI are diseases witch sporadically or epidemical emerge after the consumption of contaminated aliments with some bacteria and their toxins; because it is almost impossible to avoid the consumption of products witch contain alimentary additives, there is necessary to update the Romanian laws, accordingly with the OMS standards; there must be take into account the current standards regarding the content and quantity of additives, and their keeping must be verified by the responsible organisms.
THE TECHNOLOGICAL PROCESS IN OBTAINING CREAM LIQUEUR
Authors: Georgescu L. , Jianu I. , Berbentea F. , Hadaruga Nicoleta
Published: December 2021

The description of technological process in obtaining Cream Liqueur at the outset animal or vegetable and some another assortments derived from this.