bluuebunny/crossref_metadata_2025_split huggingface dataset:
Study of correlation between noise and disturbance to workers in the Soekarno Hatta Area of Makassar
Authors: Hustim M , Adisasmita S A , Alifiadi R 
Published: February 2020

Abstract
Soekarno Hatta Port, located in Makassar City, is one of the largest ports in Indonesia. Activities with a tight schedule at this port are giving many impacts on the surrounding environment, one of them is noise. This study aims to analyze, predict and to map noise levels in the Soekarno Hatta port area and find out the correlation between noise and disturbance to workers. This study has seven observation points in the work environment and the environment of port interests, which are divided into 3 zones. The study was conducted on 29 November 2018 and 6 - 7 December 2018. The results showed that the average noise level was 75.1 dB. This figure has exceeded the noise threshold set in Minister of Environment No.48 in 1996. Predicted results using the 2008 ASJ RTN model show a large difference with the noise measured, which is 64.5 dB without horn sound and 64.7 dB with sound horn. Contour depiction and noise distribution mapping using Surfer 12 program which represents red, yellow and green contours for the highest to lowest noise levels. For the relationship between noise and interference with workers, it was analyzed using the SPSS program through a questionnaire distributed to 32 respondents. The results show a correlation coefficient of 0.398 and a significance of 0.024 which means that the disturbance in workers has a relationship with the noise level in the workplace.
Concentration of cao catalyst from chicken eggshell in transesterification process of pangi seed oil biodiesel
Authors: Hamzah F H , Zalfiatri Y , Hamzah N 
Published: February 2020

Abstract
The purpose of this research was to obtain best consentration of CaO catalyst chicken eggshell in transesterification process on quality of biodiesel produced from pangi seed oil. The treatment of CaO catalyst concentrations in this research was S1 (1%), S2 (1.5%), S3 (2%), S4 (2.5%), and S5 (3%). The collected data were statistically analyzed by using Analysis of Variance (ANOVA) continued by Duncan’s New Multiple Range Test (DNMRT) test at 5% level. The parameters observed were acid value, density, iodium value, saponification value, and cetana number. The results of analysis showed that consentration of CaO catalyst chicken eggshell gave unsignificantly affect on acid value and cetana number but significantly affect on density, iodium value, and saponification value of biodiesel. The chosen treatment in this research was S5 (CaO catalyst 3%). The treatment of S5 has yield 97.99% with characteristics acid value 0.68 mg KOH/g, density 885.22 kg/m3, iodium value 81.41 g I2/100 g, saponification value 179.00 mg KOH/g, and cetana number 58.48.

A post-publication change was made to this article on 11 Mar 2020 to correct the conference title in the PDF header.
Rice crop phenology analysis during rendeng season using remote sensing data: an EVI-2 ratio approach of Aceh Besar regency rice field
Authors: Sugianto Sugianto , Adinda Riska , Rusdi Muhammad , Basri Hairul , Syakur  , Iqbal Muhammad 
Published: February 2020

Abstract
Information about rice phase growth is essential forpredicting of rice production, and to ensure food security program, especially during Rendeng season of rice field. The use of remote sensing data is very helpful in the process of determining the phases of plant growth. Information about the condition of the rice plant is very important to be able to estimate the growth phases and the planting season that fittingwithin the control of the production results of the rice field. This research aims to analyze phenology of rice crops during Rendeng season using remote sensing data by utilizing EVI-2 ratio. The methods used in this research is a descriptive method of quantitative interpretation with Landsat 8 OLI data. Classification on phenology phase was carried out fro the selected area of Aceh Besar District, Aceh. Results show that phenology cycle of rice crop during Rendengseason vary, ranging from low greenness to high greenness. The total area for each phase of growth also varies, with peak area occur in January. There are cyclical differences of different rice plant phenology in the Rendeng in Aceh Besar District. The differences of planting times by the farmers resulted in the existence of the value of the EVI-2 ratio variation in the area. January is the higher values of the greenness of rice crop then drop to February to March. The value of the ratio of EVI-2 experience increases with the total area of rice plant in accordance with the phases of growth of the rice plant.

A post-publication change was made to this article on 11 Mar 2020 to correct the conference title in the PDF header.
Resistant mechanisms of red jabon seedlings (Anthocephalus macrophyllus (Roxb.) Havil.) against Botryodiplodia theobromae Pat. causing dieback diseases
Authors: Yanti L A , Achmad  , Khumaida N 
Published: February 2020

Abstract

Anthocephalusmacrophyllus (Roxb.) Havil. seedlings are the most preferred plant for nursery because they have a lot of benefits. Further, its benefits can increase economic prosperity of this plant. The main problem in nursery of forestry plants is pest and disease attacks. The disease that is a focus on this research is dieback disease. The dieback disease is caused by Botryodiplodiatheobromae Pat. that may lead the host plant to death. Every plant has its resistant mechanisms to pathogen attacks both before and after pathogen attacks. This research aims: (1) to study B. theobromaeattack with wounded and non-wounded stem infection methods on red jabon seedlings; (2) to study resistant mechanism of red jabon seedlings both in structural and biochemical resistance against B. theobromae attacks. The structural resistance was done by studying the microscopic stem of the red jabon seedlings, which was conducted through scanning electron microscope. While, the biochemical resistance was done by studying the chemical compounds of red jabon seedlings’ stem using phytochemistry analysis. Red jabon seedlings had the structure of trychomaes on the epidermis and necrotic resistance as structural resistance before and after pathogen attacked, respectively. Red jabon seedlings also had secondary metabolites such as flavonoid, phenol hydroquinone, tannin, saponin, triterpenoids and steroids. Biochemical resistance of red jabon seedling after pathogen attacks showed the increase of accumulation of phenolic compounds as phenol hydroquinone and tannin and the increase of accumulation of triterpenoids and steroids compounds.

A post-publication change was made to this article on 11 Mar 2020 to correct the conference title in the PDF header.
Preliminary study of entomopathogenic fungi from termite nests
Authors: Lisa O , Hanum S , Samingan S , Bahi M , Alfizar A , Fitri L , Novita N , Syakur S , Sutekad D , Syaukani S 
Published: February 2020

Abstract
The purpose of this study was to develop inventory system of potentially entomopathogenic fungi from the termites’ nests at Seulawah Ecosystem, Aceh, Indonesia. The identification and pathogenicity test of the entomopathogenic fungi were conducted at Zoology and Microbiology Laboratories, Syiah Kuala University. We found that a potential entomopathogenic fungus, Aspergilus sp., from nest of termite (Nasutitermes spp.). Laboratory studies have shown that this entomopathogenic fungus affected to control termite Coptotermes sp. Aspergillus fungus has a great potency to be applied as a biological control agent against the termite.

A post-publication change was made to this article on 11 Mar 2020 to correct the conference title in the PDF header.
A comparative study of sensory quality of sie reuboh (an Acehnese cooked meat) based on its cooking ware
Authors: Hasni D , Nilda C , Yusriana  , Annabila D I , Asna Y Y 
Published: February 2020

Abstract

Sie reuboh is a traditional festive cuisine from Aceh Besar district – Aceh Province. Sie reuboh named by Acehnese for a 2:1 comparison of red-meat and separated beef tallow boiled with palm vinegar and blended spices. It reported having a long shelf life, exquisite of taste and flavor. Normally, Acehnese cooks this cuisine with traditional clay pot. As cooking utensil, clay pot is vulnerable to breakage and has slow heat propagation compared to stainless steel pot which has long usage and good heat conductor. This study aims to compare the quality of produced siereuboh based on its sensory quality (Hedonic and Qualitative Descriptive Analysis = QDA) and consumer acceptance by hedonic test. Sie reuboh was cooked in two types of cooking ware (earth clay pot and stainlesssteelpot) in four times repetitions. The obtained data is statistical analyzed with ANOVA and DMRT. The results showed that sie reuboh cooked with stainless steel pot is preferable in terms of color, aroma, flavor (P≤0,01) than one cooked with clay pot. Furthermore, the QDA showed that from ten examined attributes, brightness, sour and spicy aroma and umami flavor of sie reuboh cooked with stainless steel has higher notes (P≤0,01) than other treatment. As conclusion, it can be stated that stainless steel provides sie reuboh with better sensory properties and higher consumer liking.

A post-publication change was made to this article on 11 Mar 2020 to correct the conference title in the PDF header.
The workload of rice harvester in Java Indonesia
Authors: Mulyati G T , Maksum M , Purwantana B , Ainuri M 
Published: February 2020

Abstract
This study aims to determine the workload of rice harvesters in different harvesting technologies and find ways to reduce the physical workload. The physical workload is shown by the magnitude of a worker’s heart rate at work. The linear regression model is used to identify the independent variables that affect the workload dependent-variable. Heart rate and body temperature as the dependent variable are thought to be influenced by independent variables such as age, Body Mass Index, ambient temperature and humidity, and noise. Statistically the workload of workers in the manual harvest method is at the medium level, while the semi-mechanical and mechanical methods are at a low workload level. Factor that play a role in the physical workload of all harvesters is environmental temperature. To reduce the physical workload of manual workers by combining four alternative solutions, wearing red or blue clothes, using harvest tents, drink a lot, and using ergonomic tools.

A post-publication change was made to this article on 11 Mar 2020 to correct the conference title in the PDF header.
Effect of fruit size, solvent and extraction methods on resin extractability of Daemonorops sp. (jernang)
Authors: Sulaiman M I , Nasrianti N , Andini R , Darmadi  , Erika C 
Published: February 2020

Abstract
Dragon blood is a red color resin exuded from the fruit of rattan species of Daemonorops sp. The plants are mainly found in the rain forest of South-Eastern Asia, particularly Sumatera and Malaysian Peninsula. The resin has been used since ancient times in the Chinese medicines as hemostatic, antidiarrhetic, antiulcer, antimicrobial, wound healing, antitumor, anti-inflammatory, and antioxidant. It is used also as a coloring agent for ceramic industry. Besides its huge benefits, there is only little information about postharvest handling of Daemonorops’ fruit. This study explained the effect of solvent type, fruit size, and traditional handling methods of Daemonorops’ fruits in order to extract the highest amount of resin. The results showed that eluent strength had played a determining role during the resin extraction process; ranging from the strongest to the weakest was ethanol-chloroform-, and hexane, consecutively. Regarding fruit sizes, the smaller the fruits; the higher the amount of extracted resin was obtained. The relationship between fruit size and extractable resin was negative exponential. Among the three types of processing methods in terms of the yield of extracted resin, the direct extraction of fruits was more pronounced compared to the other two traditional handling methods, namely the dry and the wet ones. The results highlighted that better understanding on the postharvest handling; particularly improved of extraction method is a key in the production of dragon blood resin.
Yields of maize (Zea mays l.) and peanut (Arachis hypogaea l.) in intercropping system treated by bokashi plus fertilizer under early growth of teak plantation in Napabalano District, Muna Regency, Indonesia
Authors: Karimuna L , Halim  , Ansi A , Marfi W E , Samaruddin L 
Published: February 2020

Abstract
The main objective of this paper was to describe and to analyse the effects of improved agroforestry system through the use of biotechnology bokashi plus fertilizer on the yields of intercropped maize and peanut characteristics in order to maintain biological diversity in agriculture simile forestry ecosystem and to improve the agriculture production to meet human needs in Lambiku, Pentiro and Bonea villages, Napabalano District, Muna Regency. Biotechnology bokashi plus fertilizer produced by local farmers. Three locations as the demonstration plot at the farmers land was selected to search the growth and yields performances of intercropped maize and peanut under improved agroforestry system of early growth of teak trees treated by the application of various doses of bokashi plus fertilizer. Closed canopy resulted in improved agroforestry practice might contribute to prevent direct rain precipitation to soil and decrease soil erosion as well as to maintain biological diversity. The yields of maize and peanut were recorded and analysed using analyses of variances (ANOVA). The results showed that the higher doses of biotechnology bokashi plus fertilizer produce the higher yields of maize and peanut at one to two years of teak plantation trees, while the further age of teak trees, the suppress the growth and yields performances of maize and peanut if there was no pruning of teak branches and leaves occurred. This was indicated that improved agroforestry system through the arrangement of intercropped maize and peanut under early growth of teak trees might sustain agricultural crops production for maize and peanut yields.
Morphological characteristics of Simeulu buffalo in Simeulue District of Aceh Province, Indonesia
Authors: Sari E M , Haliman N , Abdullah M A N 
Published: February 2020

Abstract
The purpose of this study was to identify the morphological characteristics of Simeulue buffalo in Simeulue district of Aceh Province, Indonesia, the reason is because the lack of morphological data of simeulue buffalo. This research used survey method in ten villages within Simeulue district, namely: Ujung Salang, Along, Panten Lawe, Mutiara, Padang Unoi, Karya Bakti, Tamon Jaya, Meunafa, Jaya Baru and Tameng. The material consisted of fifty Simeulue buffaloes aged 3-7 years (25 male and 25 female). Determination of buffalo samples is done by simple random sampling method. The collected data was analyzed using a frequency table, averaged, and standard deviations. The parameters observed were: (a) chest circumference; (b) shoulder heigth; (c) body length; (d) chest width; and (e) hip height. The results showed that the mean of chest circumference for female and male Simeulue buffalo was 173.08 ± 8.99 and 165.68 ± 0.14, shoulder heigth was 122.33 ± 0.33 and 118 ± 1.44, body length was 125.54 ± 0.96 and 120 ± 1.16, chest width was 37.32 ± 4.09 and 34.28 ± 2.34, hip height was 118.05 ± 1.40 and 114.32 ± 1.07, respectively. It can be conclude that the average body measurements of the Simeulue buffalo are classified as medium size both male and female. The body sizes of the male Simeulue buffalo are larger than those of the female Simeulue buffalo. The average body size of Simeulue buffalo is not much different from the body size of several types of buffalo outside Simeulue Island.
Optimization of sago pulp bokashi with addition of adhesive and drying methods
Authors: Maridhi D , Irfan  , Sulaiman Ismail 
Published: February 2020

Abstract
The purpose of this study was to assist the use of organic fertilizer at farmer level. This study used Group Randomised Design factorial with 3 factors. The first factor is the long drying time (T) consisting of 3 (three) levels, namely 0 day (T1), 1 day (T2), and 2 days (T3). The second factor is the drying type (P) consisting of two levels, namely indoor (P1) and outdoor (P2). The third factor is the adhesive material (A) consisting of three levels, namely 0% (A1), 2.5% (A2), and 5% (A3). Samples were then analysed for Most Probable Number (MPN), pH, carbon test, nitrogen test, C/N ratio, and crop test. The results showed drying time (T) has a very noticeable effect on Most Probable Number, moisture content, pH, carbon element, nitrogen element, C/N ratio, and crop test. The type of drying (P) has a very noticeable effect on Most Probable Number and crop test. The adhesive material (A) has a very noticeable effect on Most Probable Number, pH, nitrogen element, C/N ratio, and crop test. The prolonged interaction of drying and drying type (TP) is very noticeable in the Most Probable Number, and crop test. Prolonged interaction of drying and drying type (PA) is very real impact and crop test, as well as a noticeable effect on the temperature of the bokashi. Long-drying interactions and drying type (TPA) have a noticeable effect on the growing bokashi test temperature. The best bokashi granule was produced in T2P1A1 sample.
Changes in soil chemical properties in agroforestry system at USU Arboretum Kwala Bekala
Authors: Rizwan M , Rauf A , Rahmawaty  , Akub E N 
Published: February 2020

Abstract
One of the opportunities for utilization and optimization of the Arboretum land is by intensive cultivation of crops commodities to fulfil the needs of food, vegetables and other commodities. This study aims to analyse changes in soil nutrient status in four types of forest trees combined with agroforestry using soybean. Soil survey was carried out in area of USU Arboretum Kwala Bekala by soil sampling and then analyzed in the laboratory. Composite soil samples were taken from Jabon tree stands, (Anthocephalus cadamba Miq.), Gmelina (Gmelina arborea Roxb.), Rubber (Hevea brasiliensis.), and Mindi (Melia azedarach L.) at a depth of 0-30 cm. This sampling was carried out twice, namely before planting and after harvesting of soybeans. The results of soil analysis were assessed based on the criteria of Soil Research Center. Parameters observed for soil sample were N total (Kjeldahl method), phosphate (Bray method), C organic (Walkey and Black), Potassium and Sodium (Flame photometer), Calcium and Magnesium (AAS). The data obtained were analysed using a paired t test at the level of α 0.05. Almost all of the values of soil chemical properties gradually increased, and significant differences in those chemical properties were found between two condition, before and after the growing of soybean in four type stand of woods. Generally, Agroforestry system in four main stands (Rubber, Gmelina, Mindi and Jabon) with soybean for period 1-year can improve soil chemical fertility through increasing pH, C organic, N total, P available, Potassium, Na and Ca.
A study of changes in the quality of Lemea Block in various types of packaging materials during storage
Authors: Liyoni D , Dewi K H , Susanti L 
Published: February 2020

Abstract
Lemea is a typical Rejang tribe’s food made from chopped bamboo shoots and mixed with freshwater fish. Lemea block is a modification of the products so that it has a longer shelf life accompanied by proper packaging. The aim of this research is to obtain the effect of different types of packaging materials on the physical, chemical, microbiological and organoleptic properties of lemea blocks during storage. The research method used is Completely Randomized Design of one factor, namely the different types of packaging materials (paper packaging, plastic bottles from PET and Polypropylene) which are then analyzed using Analysis of Variance (ANOVA). Based on the results of this research, it was found that paper packaging type had significant effect on water content, pH, total plate number but no significant effect on color, aroma, texture and overall appearance. Types of PET and PP plastic bottles have no significant effect on water content, color, pH, total plate number, flavor, taste, texture and overall appearance of the lemea block during storage.
The effect of mychorrizal dose interactions with varieties on growth and yield of chili (Capsicum annum L.) in andisol soil Bener Meriah
Authors: Syafruddin  , Syamsuddin  , Syakur  , Jumini  , Halimursyadah  , Hasanuddin  
Published: February 2020

Abstract
This study aims to determine the interaction of mycorrhizal doses and varieties on the growth and yield of chili plants in Andisol soil. This research was conducted in Blang Kucak Village, Wih Pesam District, Bener Meriah Regency, Green House and Laboratory of Plant Physiology, Faculty of Agriculture, Syiah Kuala Darussalam University, Banda Aceh from January to May 2019. Analysis of the data used in this study was Randomized Block Design, with 3 x 2 factorial pattern with 3 replications. There are 2 series in this experiment namely Series A and Series B, series A is used for data collection of growth and yield of chili plants, while series B is used for data collection of mycorrhizal colonization. The factors observed in this study were mixed mycorrhizal bio-fertilizers and varieties. The dose of mycorrhizal bio-fertilizer used was control (without mycorrhizal), 5 g plant−1 and 10 g plant−1 and the varieties used were varieties of PM-999 and Perintis. The results showed a very significant interaction between mycorrhizal doses and varieties on the parameters of the number of productive branches, besides that there were significant interactions on plant height at 45 DAP, fruit weight, fruit length, number of fruits and yield potential (tons ha−1). The best combination was found in the treatment of doses of 10 g mycorrhizal plants−1 and Perintis varieties.
In-vitro propagation: application of gibberellic acid (GA3) in enhancing germination in ‘Jernang’ or ‘Dragon Blood’ (Daemonorops sp.)
Authors: Andini R , Luthfia N , Rahmawati M , Bakri S , Akhir J , Sulaiman M I 
Published: February 2020

Abstract
‘Dragon blood’ (Daemonorops sp.) is widely known as one of the indigenous Non-Forest Timber Products (NFTP) with high economical value in the deep forests of Indonesian and Malaysian Peninsula. The name referred to red resinous exudations from four distinct plant species that are endemic to various eco-geographical regions. It has been highly valued in Chinese traditional medicines or painting industries since the 14th century. Its resin is strongly related with active bio-compound with strong curing activities for stomach ulcers or intestines’ related cancer. However, jernang’s number of population in its natural habitats has been decreasing over the past three decades as a result of unsustainable harvesting. Thus, this has dramatically reduced its population and lower genetic diversity. Another challenge is that the period of seed germination is relatively long; namely up to 12 weeks as the seeds are usually covered with thick coat. Thus, immersion in water is prerequisite in order to support the germination. The best performance was shown with 1*24 h water imbibed seeds with GA3 (W = 2 mg l−1
). For in-vitro, various organs from 3-4 months old of young seedlings were employed as explants. However, current mixture of media did not promote an accelerated growth of explants. Therefore, applying another mixture of growth hormone is highly recommended in order to deliver better experimental result. This paper can be concluded as a basic pioneer in ex-situ conservation of ‘jernang’.