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Maria Viva Rini
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INDONESIA
Journal of Applied Agricultural Science and Technology
Published by Green Engineering Society
ISSN : 26214709     EISSN : 26212528     DOI : https://www.jaast.org/index.php/jaast/article/view
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Journal of Applied Agricultural Science and Technology (JAAST) is an international journal, focuses on applied agricultural science and applied agricultural technology in particular: agricultural mechanization, food sciences, food technology, agricultural information technology, agricultural economics, agricultural statistics, bioinformatics, farm structure, farm power, agricultural machinery, irrigation and drainage, land and water resources engineering, renewable energy, environment, crop production, and crop protection.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Agronomi dan Ilmu Tanaman
Articles 157 Documents
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Effect of Ultraviolet-C Irradiation on Morphological Character Changes in Patchouli (Pogostemon cablin Benth.) Haryanti, Sindi; Yusniwati, Yusniwati; Gustian, Gustian
Journal of Applied Agricultural Science and Technology Vol. 8 No. 3 (2024): Journal of Applied Agricultural Science and Technology
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55043/jaast.v8i3.284

Abstract

Patchouli (Pogostemon cablin Benth.) is among the top 20 essential oil-producing plants traded in the global market. This plant shows narrow genetic diversity due to non-flowering and seed production, increasing the challenges in obtaining new varieties through crossbreeding. Therefore, this research aimed to apply mutation method using ultraviolet-C irradiation combined with tissue culture to broaden the genetic diversity of patchouli. The potential of UV-C irradiation and the morphological changes occurring in the plant were explored from October to December 2023 at the Tissue Culture Laboratory, Andalas University, Padang. In addition, the experiment was arranged in a Randomized Complete Block Design (RCBD) with 10 treatment levels and 3 groups. The treatments included UV-C irradiation doses of 0 (wild type), 30, 60, 90, 120, 150, 180, 210, 240, and 270 minutes at a distance of 30 cm. Data for each patchouli plant per observation variable were presented as mean values, variance, and standard deviation and analyzed using an unpaired t-test. The results showed that exposure to ultraviolet-C radiation impacted several morphological characteristics, such as chlorosis, delayed bud development, increased bud and leaf count, as well as faster bud growth. This phenomenon shows the potential of ultraviolet-C radiation as a physical mutagenic agent.
Chemical and Microbiological Characteristics of Kombucha Beverage Produced from Robusta and Arabica Coffee with Varied Roasting Profiles Savitri, Dyah Ayu; Setiyono, Setiyono; Meliala, Susan Barbara Patricia Sembiring; Arum, Ayu Puspita; Novijanto, Noer; Herliani, Canserlita Puteri
Journal of Applied Agricultural Science and Technology Vol. 8 No. 3 (2024): Journal of Applied Agricultural Science and Technology
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55043/jaast.v8i3.286

Abstract

Kombucha is a fermented beverage product often produced by adding kombucha culture into sweetened tea, juices, coffee, and herb extracts. Coffee is a refreshing ingredient commonly served as a beverage prepared from roasted coffee beans. Therefore, this study aimed to investigate the chemical and microbiological characteristics of kombucha beverage produced from robusta and arabica coffee through natural methods with light, medium, and dark roasting profiles. Ground-roasted robusta and arabica coffee were dissolved into a sucrose solution, then the kombucha culture was added to these treatments and fermented for 14 days at ambient temperature. Subsequently, each kombucha beverage was analyzed for Total Soluble Solid (TSS), pH, Total Titrated Acid (TTA), Soluble Vitamin C, Caffeine Content, and Total Lactic Acid Bacteria (LAB). The results showed that TSS decreased on the 14th day due to sucrose degradation by microbes. TTA increased at the end of the processing, followed by a lower pH (2.87–3.49), signifying a safe value for human consumption. The soluble Vitamin C increased on the seventh day and decreased on the 14th day, which was related to the oxidation process during fermentation. The monoanion of ascorbic acid became oxidized by oxygen molecules and formed other unstable compounds. The total LAB and caffeine content elevated along with fermentation time due to the caffeine solubility which increased in low pH solution.
The Effect of Using Cellulose Nanofiber from Kapok (Ceiba pentandra, L) as Reinforcement on The Properties of Recycled Papers Rezekinta, Fransiska Angelina; Kasim, Anwar; Syafri, Edi; Ridwan , Firman; Chaniago , Irawati; Ichiura, Hideaki
Journal of Applied Agricultural Science and Technology Vol. 8 No. 4 (2024): Journal of Applied Agricultural Science and Technology
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55043/jaast.v8i4.327

Abstract

Recycling is important for achieving environmentally sustainable products and waste reduction. The trend has led to the addition of reinforcement to recycling process to ensure the effective usage of wasted papers. Therefore, this study was conducted to determine the effect of using cellulose nanofiber (CNF) synthesized from kapok fibers as reinforcement in recycled papers. CNF was applied at different concentrations of 2, 4, 6, 8, and 10% of recycled paper production and the analysis was conducted by testing tensile index, density, and brightness. Moreover, X-ray diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR), and UV-Vis analysis were used to determine the characteristics of the paper. The results showed that CNF addition influenced tensile index, brightness, and density of recycled papers. This was observed from an increase in tensile strength by up to 76.32% and density at approximately 0.58 g/cm3 for 10% CNF addition. Meanwhile, the brightness level was reduced due to the compact nature of paper produced. The trend led to the conclusion that the addition of CNF could impact the characteristics of recycled papers.
Sensory Characterization Cocoa (Theobroma cacao L.) from Various Clones During Fermentation Dwijatmoko, Muhammad Isa; Nurtama, Budi; Yuliana, Nancy Dewi; Misnawi, Misnawi
Journal of Applied Agricultural Science and Technology Vol. 9 No. 1 (2025): Journal of Applied Agricultural Science and Technology
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55043/jaast.v9i1.148

Abstract

Indonesia is one of the biggest producers of cocoa bean. However, this big production of cocoa is not followed by its quality to fulfill chocolate industry requirement in flavor. Fermentation of cocoa is the most important process for producing high-quality flavor in cocoa beans. The goal of this study was to find out the fermentation effects of four clones on the sensory and chemical profile of cocoa liquor. Sensory analysis was conducted using a Quantitative Descriptive Analysis (QDA) method and the volatile components of the cocoa liquor were extracted using Solid Phase Microextraction (SPME) and then followed by identification using Gas Chromatography - Mass Spectrometry (GC-MS). Correlation between volatile components and sensory attributes were determined by OPLS (orthogonal partial least square) test. The results of this study indicate that OPLS S-plot GC-MS determination 2,3,5-trimethylpyrazine and acetic acid were found as the active compounds. Fermented and unfermented cocoa liquor from various cocoa clones had different sensory attributes. All cocoa clones of fermented cocoa beans were dominated by attributes of specific cocoa aroma, cocoa, and acidity, whereas in unfermented cocoa, they were dominated by astringent and bitter.
Enhancing Vigor and Viability of Deteriorated True Shallot Seed by Matriconditioning Using Biofertilizer and Washed Rice Water Saputra , Muhamad Wahyu; Sari , Vega Kartika; Slameto, Slameto; Setiawati , Tri Candra; Wafa , Ali; Firmansyah, Toni; Sundahri , Sundahri
Journal of Applied Agricultural Science and Technology Vol. 8 No. 4 (2024): Journal of Applied Agricultural Science and Technology
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55043/jaast.v8i4.225

Abstract

True Shallot Seed (TSS) is a healthy, cost-effective, and high-yielding alternative to shallot bulbs. However, TSS has a short shelf life due to deterioration during storage. Viability and vigor of deteriorated seed can be enhanced using Plant Growth Promoting Rhizobacteria (PGPR). Washed rice water contains macro and micronutrients that also support metabolic processes and improve the accumulation of seed nutrients during germination. Therefore, this study aimed to investigate the role of matriconditioning with a mixture of PGPR and rice washing water in enhancing shallot seed vigor and viability. Shallot seed used in the study decreased physiological quality with 9.09% moisture and 52.25% germination. Matriconditioning had 5 treatments, namely Control (M0), Matriconditioning without PGPR (M1), Matriconditioning plus PGPR RhizomaX (M2), Matriconditioning plus PGPR BenprimA (M3), and Matriconditioning plus PGPR FloraOne (M4). Washed rice water had 3 levels, namely Control (A0), 50% concentration (A1), and 100% concentration (A2). Other variables examined in this study included germination rate, maximum growth potential, relative growth rate, uniformity, and vigor index. Data were analyzed using Analysis of Variance (ANOVA), and Duncan test was applied for significant results at the 5% level. The results showed that matriconditioning using a mixture of rice husk charcoal and PGPR RhizomaX (M2) produced enhanced vigor and viability of deteriorated shallot seed. The application of leachate water for 5 days during germination, specifically at a concentration of 100% (A2), significantly improved vigor and viability. Finally, the interaction between treatment M2A2 had the best vigor and viability among all other treatments.
Biogas Production from Various Vegetable Waste Using the Mesophilic Batch Process Chusna, Firda Mahira Alfiata; Auliyasari , Annita; Nakita , Feren; Hanum, Farrah Fadhilah; Amelia , Nadiatika
Journal of Applied Agricultural Science and Technology Vol. 8 No. 4 (2024): Journal of Applied Agricultural Science and Technology
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55043/jaast.v8i4.242

Abstract

Vegetable waste is a significant component of both household and food industry waste. If not properly managed, the accumulation of this waste can harm the environment, primarily due to the unpleasant odor it generates. One effective way to utilize vegetable waste is through anaerobic digestion process. This method not only enhances the quality of waste but also has the added benefit of producing biogas, a form of renewable energy. Therefore, this research aimed to examine the potential of vegetable waste in producing biogas. Anaerobic digestion process was performed on three different types of vegetables, namely cabbage, kale, and long beans, with co-digestion as cow dung. This process was performed in mesophilic batch anaerobic reactor with a fermentation time of 30 days. The highest biogas yield for 30 days was obtained from long bean waste, 1853.76 ml biogas/g COD. Observations were made on waste at the beginning and end of the process to determine the value of removing chemical oxygen demand (COD). Reducing COD value was necessary to examine whether the quality of waste has improved and ready to be used in the environment. The results showed that long beans have the lowest COD removal efficiency value, 31.54%. Due to the high lignin content in these vegetables, there is a need for further research regarding the pretreatment of vegetable waste before anaerobic decomposition process begins. Meanwhile, the highest COD removal efficiency was achieved by kale vegetable waste at 45.35%.
The Concept Design of Rice Quality Detection System Using Model-Based System Engineering Approach Cahyana, Purwa Tri; Sunarti, Titi Candra; Noor , Erliza; Hardjomidjojo, Hartrisari; Laily, Noer
Journal of Applied Agricultural Science and Technology Vol. 8 No. 4 (2024): Journal of Applied Agricultural Science and Technology
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55043/jaast.v8i4.256

Abstract

Quality of rice is determined by several factors such as water content, broken grains, and whiteness. The approach often used for the measurement is manual, time-consuming, and prone to error. Therefore, this research proposes a faster and more accurate rice quality detection system using Model-Based System Engineering (MBSE) approach. System was based on the needs analysis presented through an activity diagram showing the components and activities flow. Logical architecture diagrams were also used to structurally describe system logic to be further abstracted to the physical architecture stage. Moreover, machine learning techniques were used to simulate rice quality data analysis using the decision tree classification with the Iterative Dichotomizer 3 (ID3) algorithm. The simulation was applied to 200 supervised random datasets divided into 80% training and 20% test data with a focus on three attributes, including water content, broken grains, and whiteness. System design was developed using Visual Paradigm Community Edition software and the data were analyzed through the application of R software. The ID3 algorithm simulation produced rice quality detection system with a 92.5% accuracy rate, where 53% of rice was classified as good and 47% as bad. The proposed conceptual design for rice quality detection can be a starting point for the development of an industrial-scale system design.
Controlling Horn Beetles Using Pineapple Fruits Trap in Palm Oil Plant Nasution, Lita; Siregar, Rahmad Syukur; Ginting, Makhrani Sari
Journal of Applied Agricultural Science and Technology Vol. 8 No. 4 (2024): Journal of Applied Agricultural Science and Technology
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55043/jaast.v8i4.258

Abstract

Chemical insecticides are often used to control palm oil pests due to their effectiveness and rapid effects. However, these insecticides leave residues in palm oil, leading to the presence of harmful chemicals that damage the agricultural environment. This has led to the use of various alternatives, such as mechanical control (trap), which is cost-effective and nature-friendly. Therefore, this study aims to determine the potential of trap with different heights and various amounts of pineapple to control horned beetles in palm oil plant. The study procedures were carried out using a factorial random group design and a factorial scheme with 2 treatment factors and 3 repetitions. The first factor was the height of trap mounted with 3 treatments, namely P1 = 100 cm, P2 = 200 cm, and P3 = 250 cm. Meanwhile, the second factor was N1 = 50 grams per trap, N2 = 100 grams per trap, and N3 = 150 grams per trap. Data obtained were then analyzed using Analysis of Variance. When the results differed, analysis was continued with Duncan's Multiple Range Test at the 5% level. The parameters observed were the number of horn beetles trapped, sex ratio, and the species of horn beetles. The results showed that in height treatment, trap had a significant influence on the number of horn beetles over 3 and 9 days. Meanwhile, in pineapple treatment, weight had no significant effect on the number of horn beetles trapped and sex ratio. The results also showed that the interaction between both treatments had no significant impact.
Phytochemical, Antioxidant, and Antibacterial Activity of Essential Oil Hyptis capitata Using Solvent-Free Microwave Extraction Susanti, Yuni; A’yun, Ayu Qurota
Journal of Applied Agricultural Science and Technology Vol. 8 No. 4 (2024): Journal of Applied Agricultural Science and Technology
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55043/jaast.v8i4.275

Abstract

Knobweed (Hyptis capitata) is a member of the genus Hyptis and the medicinal properties remain underexplored in scientific research. In this context, the use of Hyptis capitata essential oil as a medicinal plant depends on phytochemical content. Hyptis capitata is easily found in rice fields or agricultural areas such as Banyuwangi. Therefore, this research aimed to describe phytochemical compounds, antioxidants, and antibacterial activity of essential oil Hyptis capitata in Banyuwangi using Solvent-Free Microwave Extraction (SFME) method. Essential oil from leaves and inflorescence of the species was obtained with a yield of 0.273% and 0.282%, respectively. The results of Gas Chromatography-Mass Spectrometry (GC-MS) analysis showed that inflorescence and leaves of Hyptis capitata consisted of diterpenes, triterpenes, sesquiterpenes, esters, alcohols, ketones, and other groups of compounds. SFME method for the extraction affected both essential oil yield and phytochemical composition. Meanwhile, there were variations in phytochemical compounds of the plant parts used and from several previous research. The optimum % DPPH inhibition value of leaves extract and inflorescence were 19.187±0,06% and 18.784±0,06%, respectively. Antibacterial activity against Staphylococcus aureus and Eschericia coli reported no inhibition of plant extract. Phytochemical analysis showed several compounds with antibacterial potential, suggesting the need for further research of antibacterial activity against other pathogenic bacteria and exploration of additional biological activities.
Development of Flat Burr Coffee Grinding Machine for Small and Medium Enterprises Scale Warandi, Rofandi Rori Aditiar; Furqon , Maulana; Gandara, Dadang; Yudhi, Taufik; Rosadi, Ade; Santoso, Santoso; Setyawan, Azis Budi; Noor, Subardiya; Samsu, Samsu; Rahayuningtyas , Ari
Journal of Applied Agricultural Science and Technology Vol. 8 No. 4 (2024): Journal of Applied Agricultural Science and Technology
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55043/jaast.v8i4.290

Abstract

This study was conducted to develop an improved coffee grinder tailored for small and medium enterprises (SMEs) to address challenges due to limited resources. The development phase included a broad description, sizing, defining main components, developing technical drawings, manufacturing, and conducting functional tests. The machine had an overall dimension of 743 mm in length, 367 mm in width, and 580 mm in height. It was powered by a 1 HP induction motor with a rotation speed of 1400 rotations per minute (RPM) and a shaft diameter of 19 mm. The prototype achieved a grinding capacity of 23.8 kg/h for acceptable coffee grounds while maintaining a constant grind size, essential for achieving the best flavor and aroma. However, the noise level reached 86.5 dB, requiring hearing protection for prolonged usage. Future investigations should focus on exploring alternative materials and developing noise mitigation strategies, as noise reduction efforts can enhance operator physical and mental health in the coffee production process.

Page 11 of 16 | Total Record : 157

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