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Ali Rahmat
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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 38 Documents
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Effect of Temperature and Pressure in Producing Thick Cassava Chips Using Vacuum Frying Sandi Asmara
Open Global Scientific Journal Vol. 1 No. 2 (2022): Open Global Scientific Journal
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (409.052 KB) | DOI: 10.70110/ogsj.v1i2.11

Abstract

Lampung province is one of Indonesia's cassava production centers. Lampung Province is currently Indonesia's largest cassava producing area, capable of producing 60 percent of the country's tapioca needs. Cassava chips are not a new product for Indonesians. Processing cassava into thick cassava chips using vacuum frying technology is a promising technology that can increase the economic value of cassava tubers while also meeting consumer demand for innovation in the shape and size of cassava chips. The problems investigated in this study include determining the optimal temperature required to produce thick cassava chips of the highest quality and the optimal pressure required to produce thick cassava chips of the highest quality. The aims of this study was to determine the optimum temperature and pressure required to produce thick cassava chips with the best quality at temperatures of 80 C, 85 C, and 90 C and pressures of -65 cmHg, -68 cmHg, and -72 cmHg. Data analysis in Microsoft Excel software using Anova analysis to determine the effect of temperature and pressure on frying time, moisture content, weight loss, and organoleptic test. The effect of temperature and pressure on the frying using vacuum frying in the manufacture of thick cassava chips was studied. Temperature and pressure affect the water content, length of frying, and organoleptic test of aroma, color, taste, and crispness. The best quality of thick cassava chips has the lowest moisture content of 3.01% and the shortest frying time of 38 minutes, as well as the favorite score of the hedonic aroma test 3.87, taste 4.37, color 4.17, and crispness 4.73 on a scale of 1-5 contained in the treatment with optimal temperature and pressure, temperature 90 C and pressure -72 cmHg.
Feasibility Analysis of Pakcoy (Brassica chinensis L.) Cultivation with Hydroponic System Using Several Types of Planting Media Sischa Febriani Yamesa Away; Ririn Fatma Nanda; Kusmiati
Open Global Scientific Journal Vol. 1 No. 2 (2022): Open Global Scientific Journal
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (359.9 KB) | DOI: 10.70110/ogsj.v1i2.12

Abstract

Pakcoy is a leaf vegetable of high economic value and rich in nutritional content so it is greatly demanded by the public. This study aims to analyze the effect of using several types of planting media on the growth and yield of pakcoy plants with a hydroponic system; analyze the type of planting media that mostly affect the growth and yield of pakcoy plants; and analyze the feasibility of pakcoy cultivation with a hydroponic system using several types of planting media. This research was conducted from February to March 2021 in Kandang Lamo, Sarilamak, Harau Subdistrict, Lima Puluh Kota Regency, West Sumatra. Data were analyzed using a complete randomized design (CRD). There were three treatments using several types of planting media with three replications simultaneously covering a total of 81 plant samples. Data were analyzed with ANOVA, then continued with DMRT 15%. Financial economic analysis was measured by calculating revenue value, R/C ratio, BEP, and profitability ratio. The results reveal that the treatment of several types of planting media has not significantly affected the number of leaves and leaf’s width, plant’s height and plant’s fresh weight. The highest average value is resulted by the brick fragments planting medium treatment. It is proven from the average results on the leaf’s width (11.04 cm) and the number of leaves (17.03) at the age of 4 weeks after planting. The highest production yield value (131.24 gr) is resulted by the rockwool planting medium treatment. The results of the financial economic analysis show that the pakcoy cultivation business with a hydroponic system using various types of planting media is feasible to be continued. It is proven from the variable analysis of the business profit and loss statement on the parameter of R/C ratio and the profitability ratio.
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: 10.70110/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: 10.70110/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: 10.70110/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: 10.70110/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: 10.70110/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).
Effect of green tea extract addition on antioxidant activity, physicochemical, and organoleptic properties of functional beverages Hari Hariadi; Adhi Susilo; Eko Yuliastuti Endah Sulistyawati; Athiefah Fauziyyah; Yusep Ikrawan; Judiono Judiono
Open Global Scientific Journal Vol. 2 No. 2 (2023): Open Global Scientific Journal
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70110/ogsj.v2i2.18

Abstract

Antioxidants are compounds that can capture free radicals. Green tea is an herbal beverage that contains antioxidants. Non-dairy creamer is an additive made from vegetable oil. Green tea can be made into powdered instant beverages with the addition of non-dairy creamer. This study aimed to determine the effect of the addition of green tea extract on organoleptic properties, acceptability, antioxidant content, nutritional content, and the results of the economic value of non-dairy creamer functional beverage products. The research design used was a complete randomized design (CRD) using three treatments, namely the addition of 0.8 g, 0.9 g, and 1.0 g of green tea extract, with three replications. Organoleptic test was conducted on each treatment to determine the best treatment in terms of taste, color, and aroma. Antioxidant activity test was also performed on each treatment. A proximate test was then conducted on the best treatment to determine the nutritional content. The results reveal that the addition of green tea extract has generated a significantly different effect on organoleptic properties and antioxidant activity in non-dairy creamer functional beverages. The best treatment was F1, namely the addition of 0.8 g green tea extract, which has generated results in the form of color 4.05, taste 5.67, aroma 4.15 on a scale of 1–7, then antioxidant activity of 4,973.53 ppm, water content 1.42%, ash content 1.35%, protein content 2.30%, fat content 2.13%, and carbohydrates 90.52%.
Variability of elite maize (Zea mays L.) varieties at different row spacing in Guinea Savannah Region of Nigeria Nyamve Simon Mnzughul; Demben Moses Esang; Angus Onwudiwe Ikeh
Open Global Scientific Journal Vol. 2 No. 2 (2023): Open Global Scientific Journal
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70110/ogsj.v2i2.20

Abstract

Varieties and spacing are among the factors determine crop yield. Field experiment was carried out at the North Core College of Agronomy Teaching and Research, Joseph Sarwuan Tarka University, Makurdi to determine the effects of intra row spacing on the performance of three maize varieties in Makurdi. The experimental design used was 3 x 4 factorial arrangement laid out in a Randomized Complete Block Design, replicated thrice. The treatments were three (3) maize varieties and four (4) different intra-row spacing (20 cm, 30 cm, 40 cm and 50 cm). Data were collected on growth, yield and yield component parameters were subjected to analysis of variance. Significant means were subjected to least significant difference (LSD). The result showed significant differences among the maize varieties, row spacing and treatment interactions which indicated the presence of genetic and environmental effects on maize performance. The superiority of Sammaz-51 over the other varieties was observed as it produced significant seed yield. Result showed increase in intra row spacing with increase in more number of leaves per plant which were significantly longer and wider while least was recorded in a closer spacing. Increase in plant spacing beyond 40 cm intra-row was found to reduce cob weight, weight of seeds per cob as well as 1000-seed weight. Based on the study findings, maize farmers were advised to adopt increase intra-row spacing up to 40 cm for optimum yield of maize in savannah region of Nigeria.
Analysis of rural environmental quality in Glagah Subdistrict, Lamongan Regency, East Java Eko Sutrisno; Mulono Apriyanto; Sri Ndaru Arthawati; Apriningsih Apriningsih; Lilla Puji Lestari
Open Global Scientific Journal Vol. 2 No. 2 (2023): Open Global Scientific Journal
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70110/ogsj.v2i2.21

Abstract

There are several types of environmental pollution in rural areas in Glagah Subdistrict, Lamongan Regency, such as water, soil, and air pollution. Air pollution occurs because the Glagah Subdistrict is crossed by the inter-regency axis road, which is travelled by many vehicles. Meanwhile, water and soil pollution in this area occur due to fish farming and ponds. In addition, Glagah Subdistrict in Lamongan Regency is considered a flood-prone area due to high rainfall that causes the overflow of Bengawan Solo River. This study aims to determine the quality of the rural environment in Glagah Subdistrict. This study used survey and questionnaire methods. Data were analyzed quantitatively using statistical calculations and frequency tables supported by descriptive analysis. The research parameters observed were environmental quality, disaster-prone potential, and the existence of disaster response by the local village government. The results of this study show that villages in Glagah Subdistrict do not experience air or soil pollution, as they are located far from industrial areas. Instead, water pollution occurs every year, characterized by the proliferation of water hyacinth that covers the surface of the rivers, thus inhibiting the flow of river water. Potential disasters in Glagah Subdistrict are flooding and tornado. Flooding occurs in seven villages located near Bengawan Jero (a tributary of Bengawan Solo) and can be categorized as annual flooding. Villages that are annually affected by flooding do not have disaster mitigation plans, even though funds for such activities are available. Therefore, cross-sectoral cooperation is needed to overcome the annual flooding in Glagah Subdistrict.

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