bluuebunny/crossref_metadata_2025_split huggingface dataset:
Improving Maize (Zea mays L.) growth and yield by the application of inorganic and organic fertilizers plus
Authors: Mulyati  , Baharuddin A B , Tejowulan R S 
Published: April 2021

Abstract
Maize or corn is the most important crop as a staple food in many places in the world. It is mostly grown in dryland area with very low in soil fertility. Therefore this study aimed to investigate the effect of inorganic and organic fertilizers plus on the soil chemical changes, growth and yield of maize. The experimental designed was Randomized Complete Block Design (RCBD) in the pattern of factorial, which consisted of two factors. The first factor was Organic fertilizer plus (P), which consisted of three levels namely : P0 (without organic fertilizer plus), P1 (10 ton ha−1), P2 (20 ton ha−1), and the second factor was inorganic fertilizer (A), which consisted of three levels, namely : A0 (without inorganic fertilizer), without inorganic fertilizer), A1 (150 kg ha−1) and A2 (300 kg ha−1), with three replication. Data collected were analyzed by using analysis of variance at 5% level and significant treatments effect were separated with honestly significant difference at P ≤ 0.05. Results indicated that there were no interaction between inorganic and organic fertilizers plus rates on growth, yield and soil chemical changes. The use of organic fertilizers plus significantly improved the growth, yield and soil chemical properties. Dealing with the agronomic properties of maize showed that the application of inorganic fertilizer significantly increased the plant weight by increasing the plant height, leaf numbers and leaf area.
Phytochemical screening and antioxidant activity of Gyrinops tea from agarwood plantation on Lombok island, Indonesia
Authors: Wangiyana I G A S , Supriadi  , Nikmatullah A , Sunarpi  , Putri D S , Rosidah and S 
Published: April 2021

AbstractPhytochemical screening and antioxidant analysis are essential standardization procedure for the agarwood tea product. Gyrinops tea is an agarwood tea that has been emerged on Lombok Island recently. This research aims to carry qualitative phytochemical analysis and antioxidant activity assay of Gyrinops tea from several agarwood plantations on Lombok Island.Gyrinops versteegiileaves as the raw material of Gyrinops tea were taken from several agarwood plantations on Lombok Island, including Lingsar, Rarung, Kekait, Pejaring, and Mataram. There are three steps onG. versteegiileaves processing method into Gyrinops tea, including sterilization, drying, and chopping.G. versteegiileaves were brewed in distilled water at 70°C for 5 minutes to make Gyrinops tea. Phytochemical screening of Gyrinops tea was conducted with a qualitative assay identification of Flavonoid, Alkaloid, Saponin, and Tannin. The antioxidant assay of Gyrinops tea was investigated based on DPPH radicals scavenging activity. The result shows that Gyrinops tea positively contains tannin in high dosage and Flavonoid in a moderate dose with no alkaloid and saponin. Gyrinops tea samples have various antioxidant activity from moderate to strong based on IC50 measurement. It could be concluded that different sampling location has affected antioxidant activity of Gyrinops tea.
Antiaging effect of brown macroalgae Sargassum cristaefolium gel formulation by inhibition of collagen degradation
Authors: Prasedya E S , Martyasari N W R , Ilhami B T K , Padmi H , Widyastuti S , Sunarwidhi A L , Sunarpi H 
Published: April 2021

Abstract
Recent strategies for skin protection against UV radiation have included the incorporation of natural photoprotective agents, such as gel formulations. Our previous study demonstrated the UV photoprotective activity of brown macroalgae Sargassum cristaefolium ethanol extract (SCE). In this study, we aim to determine the optimum gel formulation for the incorporation of SCE. In addition, the UV antiaging activity was evaluated in vivo with mice as animal models. Gel formulation with various concentrations of Glycerin, Carbopol, and TEA was evaluated with the simple lattice design (SLD) method in Design-Expert Software. The optimum gel formula containing 0.1% SCE inhibited collagen degradation in mice skin irradiated by UV-A. It can be concluded that the gel formula successfully incorporates SCE and possibly provides antiaging activity in vivo by inhibition of collagen degradation. However, further investigations need to be done to conclude the photoprotective activity of SCE gel formulation (SCEg). In addition, exploration of the Sargassum brown macroalgae based gel formula should be considered for cosmeceutical applications.
The combination of pumpkin and jackfruit seeds for making tortilla
Authors: Nurhayati  , Ihromi Syirril , Dewi Earlyna Sinthia 
Published: April 2021

Abstract
Consumers’ tendency to prefer practical and ready-to-eat snack products such as tortillas provides new ideas for food diversification that can be accepted by the community. Pumpkin has been developed as an alternative food ingredient that has been processed into flour. It has been used as an alternative for making some products. The high nutritional content of pumpkin, vitamin A and vitamin C is very suitable for raw material in making tortillas expected to produce tortillas with a high level of proteins and vitamins. Not only pumpkin flour, but there is also a potential ingredient for making tortillas, the jackfruit seeds. Jackfruit seeds are waste from jackfruit. This waste becomes a problem of environmental pollution if not addressed immediately. Jackfruit seeds still have a high nutritional content. This study aims to determine the best formulation combination between pumpkin and jackfruit seeds for making tortillas and determine the effect of the combination of pumpkin and jackfruit seed on tortillas’ chemical and organoleptic properties. The research data were analyzed using an experimental design, CRD (completely randomized design) with one factor, the pumpkin and jackfruit seeds combination, treatment A (pumpkin 20%: jackfruit seeds 80%), B (pumpkin 35%: jackfruit seeds 65 %), C (pumpkin 50%: jackfruit seeds 50%), D (pumpkin 65%: jackfruit seeds 35%), E (pumpkin 80%: jackfruit seeds 20%) which is repeated three times to get 15 units trial. The analysis results were continued with the Honestly Significant Difference test (HSD) at the 5% level. The parameters were moisture content, ash content, fiber content, and organoleptic tests (color, aroma, texture, and taste). The results showed that the combination of pumpkin and jackfruit seeds significantly affected the content of moisture, ash, and fiber, and the score of color, taste, and texture but did not affect the tortilla aroma score. The result showed that the decrease of the pumpkin using, the decreased of the moisture, ash, and crude fiber content. The best treatment based on chemical and organoleptic properties is treatment C (50:50). In the future, issues related to the environment will become a concern for humanity in line with industrialization, which causes harmful excess in increased waste. For this reason, the development of agro-industry in the future is a sustainable agro-industry, such as the use of jackfruit seed waste into tortillas.
Combination of inorganic and organic fertilizer in rice plants (Oryza sativa) in screen houses
Authors: Sunarpi H , Nikmatullah A , Sunarwidhi A L , Jihadi A , Ilhami B T K , Ambana Y , Rinaldi R , Widyastuti S , Prasedya E S 
Published: April 2021

Abstract
The demand for agricultural commodities increases from year to year, so farmers also have to increase the production of agricultural products. Farmers can increase agricultural yields through the excessive use of inorganic fertilizers. This causes many problems for the environment, so it is required to reduce the use of inorganic fertilizers in agricultural land. This study aimed to determine the effect of a combination of organic and inorganic fertilizers on the growth and yield of rice. This research was carried out in a screen house in Jatisela, Gunung Sari Subdistrict, Lombok from June to October 2020. The three treatments used in this study were P0 N0 with no organic and inorganic fertilizers; P0 N100 with a dose of 100% inorganic fertilizer and P50 N50 with a dose of 50% organic fertilizer and 50% inorganic fertilizer. The results showed that the combination of organic fertilizers (50%) and inorganic fertilizers (50%) can increase the growth and yield of rice in the screen house compared to control plants and plants which given only 100% inorganic fertilizers. In summary, the combination of organic and inorganic fertilizers can reduce the use of inorganic fertilizers.
Seagrass conservation needs based on the assessment of local scale economic value on the diversity of its associated biota in the South Coast East Lombok, Indonesia
Authors: Zulkifli L , Syukur A , Patech L R 
Published: April 2021

Abstract
The existence of seagrass has strategic value for the economic sustainability of small fishermen, especially in providing fish and related economic biota. This research aims to show the economic value provided by seagrass ecosystem services in providing biota associated, both as a primary or secondary source. Field surveys and analysis of effects on production (EOP) show that capture fisheries and other marine biota collectors, both crustaceans and mollusks associated with are directly utilized by local communities on the southern coast of the island of Lombok, Indonesia. The estimated economic value of fish and marine biota used in the Seagrass Ecosystem area is US$ 40,669.00 and US$ 21,105.00 per hectare per year or a total of US$ 61,774 per hectare per year. This value demonstrates the potential importance of seagrass ecosystems so that seagrass conservation is needed for the sustainability of coastal communities and for the sustainability of marine biota in the future.
Effect of Rhizophora sp mangrove leaf extract on mice blood glucose levels
Authors: Efendi A , Aini  , Halid I , Ustiawaty J 
Published: April 2021

AbstractDiabetes mellitus is a disease that occurs due to increased blood glucose levels (hyperglycemia) due to disorders of the pancreas. Mangrove leaves are known as herbal plants that can reduce blood glucose levels because it contains flavonoid compounds that can repair damaged pancreatic β cells and stimulate pancreatic β cells to produce the hormone insulin. This study aimed to determine the effect ofRhizophoraleaf extract administration in reducing blood glucose levels of mice. This research was an experimental laboratory with the approach the post-test only control group design. This test used 5 groups, consisting of negative control group, positive control group (Glibenclamide 5 mg/kg BW), KP1 (extract 250 mg/kg BW), KP2 (extract 500 mg/kg BW), KP3 (extract 700 mg/kg BW). Measurement of fasting blood glucose levels using glucometer. The results showed that the administration ofRhizophoraleaf extract in the KP1, KP2, and KP3 treatment groups was able to reduce blood glucose levels compared to before being treated, although the decrease was not yet up to normal limits. The conclusion was that theRhizophoraleaf extract was able to reduce fasting blood glucose levels with the highest percentage reduction in KP2 at a dose of 500 mg/kg BW by 29%.
Phytohormone content in brown macroalgae Sargassum from Lombok coast, Indonesia
Authors: Sunarpi H , Nikmatullah A , Ambana Y , Ilhami B T K , Abidin A S , Ardiana N , Kirana I A P , Kurniawan N S H , Rinaldi R , Jihadi A , Prasedya E S 
Published: April 2021

Abstract
Exessive use of inorganic fertilizers in rice production systems, causes various negative effects in the environemnt, such as reducing soil fertility and increases pollution, which disturbs agricultural sustainability. Understanding raw materials for developing organic fertilizers which are cheap and adaptive to our environment, is an important study recently. Many researchers reported that brown algae could increase growth and yield of several species of plants. This due to brown algae extract contain plant growth hormone and essential elements to stimulate growth and production of plants. This article report growth and yield of rice plants suplied with mixtured extract of brown algae. Several species of brown algae were collected in coastal beach of Lombok. The seaweeds were cutted into small peaces, extracted with boiled water for 30 minute and filtered using filter whatman no.1 to get solid and liquid extract. Mixtured solid extracts were added in soil media. On the other hand, the mixtured liquid extracts were sprayed to rice plants during vegetative growth. The results shown that mixtured solid extracts increased growth and yield of rice plants. However, mixtured liquid extract did not stimulate growth and yield of rice plants. This suggests that brown algae is a potential raw material for development of organic fertilizers, which are adaptive to environment to support sustainable agriculture.
Application of crude natural enzymes for extraction of Wali seed [Brucea javanica (L) Merr]
Authors: Muliasari H , Ananto A D , Deccati R F , Almira D , Solahuddin  
Published: April 2021

Abstract

Bruce javanica (L) Merr is a medicinally important plant, commonly known as Wali. The extract of its seed has various secondary metabolites responsible for its pharmacological properties. Unfortunately, the recent method of extraction lacks in the percentage of the yield and has disadvantages to the environment. Enzymatic extraction of bioactive compounds is a potential alternative. In this research, we use some crude natural enzymes that are amylase, protease (bromelain), and cellulase isolated from corn kernels, pineapple fruit, and beef rumen fluid, respectively. The aim of this research was to determine the effectiveness of crude natural enzymes for the extraction of metabolite compounds in wali seed comparing with the solvent extraction method. For each of one gram of wali seed powder was extracted by using ultrasonic-assisted extraction (UAE) method with solvent of (1) methanol; (2) ethanol 96%; (3) bromelain; (4) amylase; (5) cellulase; (6) bromelain+amylase; (7) bromelain+cellulase; (8) amylase+cellulase; (9) amylase+bromelain+cellulase. The extracts of (1) and (2) were then evaporated; while extracts of (3) to (9) were freeze-dried. The appearance of extracts (1) and (2) were bright-yellow viscous liquid; while extracts (3) to (9) were solid-milky powder. Cellulase increases the extraction yield up to 40% and 22% in comparison with methanol and ethanol, respectively. The semiquantitative analysis showed that methanol extracts the metabolites with the highest concentration but has the lowest amount of yield extract. However, cellulase showed the highest ability to extract metabolites tested. The flavonoid content extracted using cellulase enzymes resulted in an increase of 273% and 170% in comparison with methanol and ethanol, respectively. Thus, the use of crude cellulase enzyme isolated from beef rumen fluid is the best choice to extract wali seed among other enzymes and solvents used.
The physical and chemical properties of VCO emulsion with citrus extract
Authors: Wiyani L , Aladin A , Rahmawati  , Mustafiah and 
Published: April 2021

Abstract
Virgin Coconut Oil (VCO) is one of the oils that has many benefits. But most consumers do not like to consume it directly because of the oily taste. Therefore, one alternative to reduce its oily taste is by formulating VCO in the form of an emulsion. This study was aimed to determine the effect of VCO and citrus extract ratio on the properties of VCO emulsion using natural emulsifiers. The emulsions were prepared with a ratio of VCO and citrus extract of 9: 1, 8: 2, 7: 3, 6:4, 5:5, 4:6, 3:7, 2:8 and 1:9, respectively. Three types of emulsifiers were used, namely Arabic gum, xanthan gum and soy lecithin with each concentration of 0.75 percent. The stability and viscosity of the emulsions were evaluated. The results of this study show that the use of the three emulsifiers resulted in different viscosities and stability. The emulsion using Arabic gum was the most stable at VCO: citrus extract ratio (9:1) with a viscosity of 230 cP. The emulsion with xanthan gum at VCO: citrus extract ratio (1:9) was stable with a viscosity of 1066 cP. However, the emulsion using soy lecithin was unstable. The contents of the peroxide number were 0.8-0.9 meq/kg sample. This stable emulsion can be used for future research to produce VCO emulsion which is good for consumption.
Community-based spring conservation in Catchment area of Kemalik Lingsar, Lombok, Indonesia
Authors: Jupri Ahmad 
Published: April 2021

Abstract
Water is the main and irreplaceable need for living things, both plants, animals and humans. Springs are one of the important elements, especially in the dry season, for the survival of living things, especially humans. The availability of water can play a role in many aspects including being able to function as drinking water, bathing, latrines (MCK), washing, plantations and livestock, irrigation of agricultural land, the need to purify oneself (as a support for the implementation of worship), and the economy. Conservation of springs through programmed reforestation activities in spring water catchment areas such as those carried out by the community and the NTB government requires precise references, so it is necessary to study the relationship or role between vegetation, soil (land) and climate in the conservation of spring sources. This research was conducted in Lingsar village, Lingsar District with quantitative research methods, namely observing vegetation directly in the field in the Kemalik Lingsar spring catchment area. Field data were then analyzed to determine the stratification, diversity, structure and composition of vegetation in the study area. The structure and composition of vegetation is carried out by calculating the density, frequency, dominance and importance of each species. Based on the research results it can be concluded that the number of tree species found in Kemalik is 14 species. Mangosteen is the dominant species with an IVI value of 104% and a density of 125 ph / ha. Utilization of land in the Kemaliq spring is mangosteen-based agroforestry which has been carried out for a long time, which can be seen from the old mangosteen trees which are planted at regular intervals and arrangements and are maintained (the community has long contributed to efforts to conserve soil and water). Underplants found in Kemalik were 16 species of herbaceous, 13 species of shrubs and saplings
Sea Surface Temperature (SST) analysis during ElNiño-LaNiña in the Java Sea
Authors: Haryanto Yosafat D , Riama Nelly F , Agdialta Rezfiko , Hartoko Agus 
Published: April 2021

Abstract

El Niño-La Niña effected climate conditions in Indonesia. The purpose of this study was to analyze the SST during El Niño-La Niña. The data used is the ENSO index SST Niño 3.4 anomaly in 1986-2017 and also SST data in the year of the El Niño-La Niña event with weak, moderate, and strong. It found that SST tended to be higher during El Niño than its normal average in the Java Sea by 29°C, while the normal SST is 28.94°C. La Niña SST in the Java Sea has an average of 29.06°C which is 0,6°C warmer than its normal average temperature. It can be concluded that El Niño-La Niña conditions do not greatly affect SST in the Java Sea. SST tends to be warmer during El Niño-La Niña than its normal average in the Java Sea. The average of SST is lower/cooler at 109.5-110.5° East Longitude than that of at the other longitudes. This is due to the mixing current of the cold water mass flow from the South China Sea with the mass of water from the Makassar Strait, each of which carries nutrients.
Strategy for shipyard industrial waste management in controlling water and air pollution in ship repair
Authors: Ashari Rachmat , Soesilo Tri E.B , Herdiansyah Herdis 
Published: April 2021

Abstract
This study aims to determine environmental conditions, environmental management, environmental management strategies of PT. X in controlling environmental pollution. This research was conducted at PT.X Cilegon Banten shipyard in marine ship repair activities. This research uses a quantitative approach with cross-sectional. The research method in analyzing this research is a mixed method with survey methods and laboratory analysis. Manage strategies using questionnaires and interviews. Environmental quality data analysis uses predetermined quality standards and management strategies use SWOT analysis (Strength, Weakness, Opportunity and Threat). The results of environmental quality research of PT. X show the status of the environment that is heavily polluted to meet quality standards. The concentrations of heavy metals, namely Pb, Zn and Cu have exceeded the standard of quality at 3 stations and analysis of the quality of dust in the air in the shipyard area and around the shipyard occurs air pollution caused by the use of silica sand in the sandbalsting process. Evaluation of the company’s commitment in managing the work environment based on knowledge and attitudes is considered good by employees towards environmental management. The strategy carried out in environmental management at PT.X which was produced by researchers using the SWOT method, namely by increasing guidance and coordination in environmental management by forming an environmental division to reduce the impact of ship repair activities at the PT.X.
Mapping out the municipal solid waste generation and collection model using spatial multi-criteria evaluation
Authors: Amri Saiful , Martono Dwi N , Supriatna  , Soesilo Tri E B 
Published: April 2021

Abstract
As of 2017, only 47% of Sukmajaya Sub-district’s waste was collected and transported. The City of Depok targeted to improve this rate to 73% by 2020. This research aims to evaluate the waste collection system in Sukmajaya Sub-district. Data were collected from government agencies, interviews, and field surveys. Data analysis was conducted using Spatial Multi-Criteria Evaluation (SMCE). Results showed that waste generation in Sukmajaya Sub-district was divided into three categories based on its quantity: three villages generated more than 150 m3 waste/day, two villages generated 50-100 m3 waste/day, and one village generated lower than 50 m3 waste/day. Sukmajaya Sub-district had three types of residential waste collection models: indirect individual physical Waste Collection Point (WCP), indirect individual non-physical WCP, and direct individual door to door. Evaluation revealed four out of six existing physical WCP facilities were suitable in terms of spatial and physical conditions and posed low threat to pollute the surrounding environment.
Innovation for the development of environmentally friendly oil palm plantation in Indonesia
Authors: Syahza Almasdi , Robin  , Suwondo  , Hosobuchi Michiko 
Published: April 2021

Abstract
Oil palm is a very common commodity in rural communities of Sumatra and Kalimantan, Indonesia, and the farming activities in these areas create a high multiplier effect and increase welfare. However, the expansion of oil palm areas puts pressure on forests and resources. The research was carried out through a survey using the developmental research method. Efforts to implement sustainable development in the plantation sector need to be carried out to develop palm in the second cycle. One of the efforts is to implement agroforestry by planting forestry plants between oil palm trees, namely meranti trees (Shorea leprosula Miq). The model for the development of meranti is a monoculture palm plantation that is integrated with meranti trees. This has ecological, economic, and social benefits, following the basic concepts of environmental management. Planting copper meranti between palm trees has multiple benefits for the community, such as wood production. Planting copper meranti between oil palm trees has multiple benefits for the community, timber production as additional income for farmer families.