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Ali Rahmat
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Research and Social Study Institute (RESSI) Prenggan, Kotagede, Kota Yogyakarta, Daerah Istimewa Yogyakarta 55172
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Open Global Scietific Journal
Published by Research and Social Study Institute
ISSN : -     EISSN : 29617952     DOI : https://doi.org/10.33292/ogsj.v1i2.8
Core Subject : Agriculture, Social,
Agriculture, Biological Sciences & Forestry Environmental Science
Open Global Scietific Journal (OGSJ) is a periodical publication from the IResearch and Social Study Institute (RESSI). Published semiannually, the journal has a goal to be a means of communication and dissemination of research results in Agriculture Sciences. Start Vol 1 Issue 2 Open Global Scientific Journal will publishes research articles, reviews/mini-reviews and letters in all areas of agricultural science. Topics covered include: 1. Agronomy 2. Plant breeding 3. Agricultural biotechnology (including tissue culture, molecular markers, molecular diagnostics, vaccines, genetic engineering, genome editing as well as synthetic biology) 4. Crop physiology and agroecology 5. Soil science and agroclimatology 6. Agricultural economics and rural sociology 7. Sustainable systems 8. Crop protection and Cultivation 9. Pharmacognosy and Pharmaceutical Development 10. Environmental implications of agricultural land 11. Environmental Sciences, including prevention and correction of adverse environmental effects (e.g., soil degradation, waste management, bioremediation)
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 5 Documents
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Search results for , issue "Vol. 2 No. 1 (2023): Open Global Scientific Journal" : 5 Documents clear
Production of Bio Charcoal Briquettes Made from Coal and Palm Fronds Sandi Asmara; Winda Rahmawati; Tamrin; Ipang Setiawan
Open Global Scientific Journal Vol. 2 No. 1 (2023): Open Global Scientific Journal
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (532.71 KB) | DOI: 10.33292/ogsj.v2i1.13

Abstract

Biomass from oil palm fronds has not been effectively utilized in Central Lampung, there is a need for alternative processing of palm oil fronds into more useful materials. One method of processing palm fronds is to create bio charcoal briquettes, which are used as an alternative fuel. The purpose of this research was to see how palm fronds and particle size of palm oil fronds affected the properties of bio charcoal briquettes. The factorial completely randomized design (CRD) was used in the research with one factor, namely the particle size of the oil palm fronds passing through the sieve with one treatment, namely 20 mesh. To produce 25 experimental units, the study used five treatments with five replications. The obtained material was then tested for LSD. The results revealed that palm fronds had no impact on briquette density, moisture content, compressive strength, shatter resistance index, or rate of burning. The particle size of palm leaves going through the 20 mesh sieve affects density, compressive strength, shatter resistance index, and burning rate significantly. The findings revealed the following features of bio charcoal briquettes: The moisture content is 5.17-6.89%, the heating value is 4372.42 - 5074.50 cal/g a density of 0.568-0.674 g/cm3, a compressive strength of 3.85 - 4.58 kg/cm2, a shatter resistance index of 12.58-17.19%, a burning rate of 1.40-1.47 gram/minute, and a bottom temperature of 287°C. (for 60 minutes and a mass of 200 grams).
Post-Pandemic Covid-19 Food Security Strategy Model in Coastal Community and Fisherman Households in Lampung Province Helvi Yanfika; Puspita Yuliandari; Herman Yulianto; Irwan Effendi; Indah Nurmayasari; Dewangga Nikmatulloh
Open Global Scientific Journal Vol. 2 No. 1 (2023): Open Global Scientific Journal
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (259.086 KB) | DOI: 10.33292/ogsj.v2i1.16

Abstract

ishermen are one part of the community members who have the lowest level of welfare. The COVID-19 pandemic is an event that causes the spread of the coronavirus disease 2019 around the world. The pandemic has caused global socio-economic disruption, the postponement or cancellation of sporting and cultural events, and widespread concern about stock shortages driving panic buying. A household is said to have food security if its inhabitants are not in a state of hunger or feel threatened by hunger. The linkages between the lives of coastal communities and fishermen in Lampung Province are quite concerning, coupled with the COVID-19 pandemic requiring special treatment to improve their welfare and standard of living, one of which is by increasing food security for coastal communities and fishermen. The most appropriate effort is to carry out a post-COVID-19 Pandemic Food Security Strategy modeling for Coastal Community and Fisherman Households in Lampung Province. The research was carried out from April to September 2022 in Labuhan Maringai subdistrict, East Lampung Regency. Sampling was done purposively. The data collected from the survey results have been analyzed statistically descriptive and inferential. The level of food security for the respondent's family is in the moderate category, meaning that the respondent can provide, reach and use it quite well but not optimally. The community has not been able to ensure that the food security component can run consistently at any time. This happens because the income of fishing households is very unpredictable, this can also determine the ability of the family to provide food. The influence of the education level of a housewife has an indirect effect through her nutritional knowledge. Food knowledge has a more direct influence on food security, meaning that the knowledge of housewives related to food is the basis for action in realizing food security at the family level.
Physical and Chemical Properties of Robusta Coffee Beans at Different Temperatures and Roasting Times Eko Sutrisno; Anis Nurhayati; Mulono Apriyanto
Open Global Scientific Journal Vol. 2 No. 1 (2023): Open Global Scientific Journal
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33292/ogsj.v2i1.14

Abstract

Robusta coffee in the Rejosari Mojokerto Village is undertaken by the local community. However, to ensure the production of high-quality coffee and avoid the production of low-priced products, it is imperative for the community to possess a comprehensive understanding and knowledge of coffee post-harvest processing methods. This study aims to investigate the physicochemical properties of Robusta coffee under varying roasting temperatures and times. Several key variables were observed, including the number of beans per 100 grams of coffee, geometric diameter (GM), and average weight of coffee beans, which were employed to assess the physical properties of the coffee. Furthermore, the chemical composition of coffee was analyzed in terms of extract weight, ash content, caffeine, glucose, and coffee protein levels. The results indicate that 100 grams of Robusta coffee contain an average of 368 individual coffee beans, each weighing approximately 0.27 grams, with a geometric dimension (GM) of 10.3 mm. Moreover, the extract weight, caffeine, glucose, and protein content exhibit a decreasing trend during the roasting process. As the roasting time increases and the temperature rises, the percentage of coffee extract and caffeine content decreases. Notably, coffee roasted at 200°C for 20 minutes exhibits the highest ash percentage, reaching 4.16%. It was observed that higher roasting temperatures and longer roasting periods result in increased ash content. This study highlights the significant influence of varying roasting temperatures and times on the quality of the resulting coffee beverage.
Organic Vegetables Business Development Strategy: A Case Study on Deedad Hydroponic Makassar Dini Dwiyanti Anwar; Marhawati; Nurdiana; Inanna
Open Global Scientific Journal Vol. 2 No. 1 (2023): Open Global Scientific Journal
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33292/ogsj.v2i1.15

Abstract

Vegetable crops have bright prospects for development because they are a complement to staple foods and have high economic value. However, there are many challenges in establishing and running a hydroponic vegetable business so that the appropriate strategy is needed. This study aims to determine the internal and external factors that influence the development of organic vegetable business and to study the development strategy of organic vegetable farming business at “Deedad Hydroponic” Makassar. The type of research conducted was descriptive research using a qualitative approach. The type of informants were determined purposively, namely people who run organic vegetable businesses at “Deedad Hydroponic”. The data collection procedures included observation, interview, and documentation. The data obtained were then analyzed qualitatively using SWOT analysis. The results of the analysis have suggested that the S-O strategies that can be applied are maintaining the freshness and cleanliness of the vegetables, providing training to employees to improve skills and providing equipment in accordance with the latest technology, and expanding marketing networks. W-O strategies that can be applied are conducting continuous promotions to gain market and customer loyalty, and attracting public interest in organic products. S-T strategies that can be applied are innovating high-value product development to face competition, and developing technology-oriented businesses. W-T strategies that can be applied are building a joint product distribution system, and building a network of cooperation to create reliable business governance and technology.
Cost Analysis and Economic Evaluation for The Fabrication Activated Carbon Nanomaterials from Durian Seeds Utilizing Ionic Liquids Andika Purnama Shidiq; Asep Bayu Dani Nandiyanto; Risti Ragadhita; Meli Fiandini
Open Global Scientific Journal Vol. 2 No. 1 (2023): Open Global Scientific Journal
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33292/ogsj.v2i1.17

Abstract

Waste Agricultural Biomass (WAB) is a challenging problem in this modern era. The purpose of this study was to evaluate the economic feasibility of manufacturing carbon nanomaterials from durian waste biomass using ionic liquids. Several economic evaluation parameters are analyzed to inform the production potential of valuable materials from Biomass. The results showed that the production of carbon nanoparticles from biomass is quite prospective. Technical analysis for converting 250 kg of waste durian seeds shows the total cost of the equipment purchased was USD 12,086. Adding the Lang Factor, the total investment cost should be less than USD 53,661. This value is relatively economical (ie the project requires less investment funds) to reduce 75 tons per year or 100 tons per 20 project years. Compared to the total amount of degraded durian seed waste, the value is only around 18 USD per ton. Indeed, it is inexpensive to access a problem solver in degrading a ton of durian seed waste. To ensure project feasibility, projects are assessed from ideal to worst conditions in production, including labor, sales, raw materials, utilities, and external conditions (ie, taxes and subsidiaries).

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