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Indonesian Journal of Applied Research (IJAR)
Published by Universitas Djuanda Bogor
ISSN : -     EISSN : 27226395     DOI : https://doi.org/10.30997/ijar.v1i3
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT
Indonesian Journal of Applied Research (IJAR), e-ISSN 2722-6395 is high quality open access peer reviewed research journal that is published by Universitas Djuanda (UNIDA). IJAR dedicated to publish significant research findings in the field of Applied Sciences, Engineering &Technology. We welcome original empirical research articles with novel perspectives and/or methodological approaches that would appeal to an international readership. We do not accept unsolicited conceptual and theoretical papers. The journal is designed to serve researchers, developers, professionals, graduate students and others interested in state-of-the art research activities in Applied Sciences, which covers four (2) majors areas of research that includes Applied Sciences, Engineering &Technology. The journal was first published in April 2020 and published every April, August and December.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 125 Documents
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Risk Mitigation of Oyster Mushroom Production and Distribution Using Method Failure Mode and Effect Analysis (FMEA) Miftah, Himmatul; Rapigah, Siti; Mubarokah, Syaima Lailatul; Masithoh, Siti; Kusumawati, Riny; Pramartaa, Ikhsan Qodri
Indonesian Journal of Applied Research (IJAR) Vol. 6 No. 3 (2025): Indonesian Journal of Applied Research (IJAR)
Publisher : Universitas Djuanda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30997/ijar.v6i3.748

Abstract

The production process of making raw materials for horticultural commodities has various risks, both internal and external, and if it occurs, it will hinder the company's goals. This research aims to analyse and measure risks in the production and distribution of oyster mushrooms and determine actions to mitigate risks. The research method used purposive and snowball sampling. Data were analysed using descriptive analysis through interviews and quantitatively through risk analysis and Failure Mode and Effect Analysis (FMEA) methods. The study results indicated that risks occur from the nursery stage to distribution to consumers. Risk mapping that needs to be watched out for: Mucor spp disease, baglogs attacked by crepe pests, damaged baglogs in the incubation section, and incorrect and irregular watering and fertilization. The risks in distribution analysed are the risk of heavy losses, physical damage, and unsold goods. The most significant risks in the distribution process were heavy losses and physical damage to mushrooms at the farmer level during the sorting process, and physical damage at the retailer level during the sorting process due to the presence of old, wet, and yellowing mushrooms, as well as unsold mushrooms. Production is mitigated by cleaning around the mushroom house, burning diseased baglogs, arranging baglog entry and exit times to facilitate the sorting process, and implementing routine work direction and evaluation. Mitigation of unsold risks during distribution: making a purchasing plan according to previous sales results, selling remaining mushrooms at a lower price than the purchase price, and using PBP and VBP packaging.
Kinetics of Changes in Free Fatty Acids in Cassava Crackers (Kecimpring) Enriched with Catfish and Gotu Kola (Centella asiatica) Leaves During Storage Rifqi, Muhammad; Marhamah, Irma Siti; Handayasari, Faridah; Nurhalimah, Siti
Indonesian Journal of Applied Research (IJAR) Vol. 6 No. 3 (2025): Indonesian Journal of Applied Research (IJAR)
Publisher : Universitas Djuanda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30997/ijar.v6i3.742

Abstract

Cassava crackers, also known as kecimpring, are a traditional Indonesian snack that is low in protein but high in carbohydrates. Researchers have explored fortifying these crackers with catfish to enhance their nutritional value and increase their protein content. However, the high fat content in catfish can increase overall lipid levels in the crackers, making them more susceptible to oxidation during storage. Using the Arrhenius model, this study aimed to evaluate the kinetics of free fatty acid (FFA) formation in fortified cassava crackers. The enriched product, which included catfish and Centella asiatica leaves, was stored at temperatures of 25°C, 35°C, and 45°C for 28 days in polypropylene packaging that is 0.4 mm thick. FFA levels were measured at 7-day intervals. The results revealed an activation energy (Ea) of 54.01 kJ/mol, indicating that higher storage temperatures accelerate lipid hydrolysis and FFA accumulation. These findings suggested that controlling the storage temperature was crucial to maintaining the quality and stability of fortified cassava crackers.
Effectiveness of Diets Incorporating Nano-Zeolite and Urea-Impregnated Nano-Zeolite on Fermentation Efficiency in Rumen Fluid In Vitro Kardaya, Dede; Dewi, Pia Nurmala; Sudrajat, Deden; Wahyuni, Dewi; Pramartaa, Ikhsan Qodri; Gopar, Ruslan Abdul; Negara, Windu; Nurlaela, Raden Siti
Indonesian Journal of Applied Research (IJAR) Vol. 6 No. 3 (2025): Indonesian Journal of Applied Research (IJAR)
Publisher : Universitas Djuanda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30997/ijar.v6i3.767

Abstract

Zeolite had been widely investigated in animal feed for its ability to improve feed efficiency and reduce ammonia emissions, and nano-zeolite offered greater adsorption capacity due to its expanded surface area. This study evaluated the effects of nano-zeolite supplementation on ammonia (NH₃), volatile fatty acids (VFA), the VFA/NH₃ ratio, and pH during in vitro rumen fermentation. A two-factor randomized block design (6 × 6) with four replicates was used. Incubation time (2, 4, 8, 12, 24, and 48 h) served as the first factor, and six dietary treatments served as the second factor: control, urea-supplemented concentrate, inactivated nano-zeolite, activated nano-zeolite, urea-impregnated inactivated nano-zeolite, and urea-impregnated activated nano-zeolite. Nano-zeolite, whether active or urea-impregnated, did not significantly improve rumen fermentation efficiency based on NH₃, VFA, or VFA/NH₃ ratio. All nano-zeolite diets performed similarly to the control and urea-only diets. Fermentation efficiency peaked at 4 and 8 hours of incubation, indicating that nano-zeolite combined with urea supported stable fermentation, particularly during early to mid-incubation.
Potential of Kersen Leaf Extract (Muntingia calabura L) and Basil Leaf Extract (Ocimum basilicum L.) as Natural Antibacterial Candidates against Salmonella typhi Weni, Mustika; Marfuati, Sri; Fitriani, Hikmah
Indonesian Journal of Applied Research (IJAR) Vol. 6 No. 3 (2025): Indonesian Journal of Applied Research (IJAR)
Publisher : Universitas Djuanda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30997/ijar.v6i3.771

Abstract

Salmonella typhi remains a global health issue with rising antibiotic resistance, necessitating alternative natural therapies. Kersen (Muntingia calabura L.) and basil (Ocimum basilicum L.) leaves contain bioactive compounds with antibacterial potential. The purpose of this research was to examine the antibacterial activity of kersen and basil leaf ethanol extracts against Salmonella typhi at various concentrations. The research applied an experimental Post-Test Only Control Group Design. Antibacterial activity assessment was performed using the well diffusion method with varying extract concentrations of 20%, 35%, 45%, 50%, and 75%. Data analysis was performed using the Shapiro–Wilk test was used to examine data normality, while group differences were evaluated with the Kruskal–Wallis non-parametric test. Kersen extract contained saponins, tannins, alkaloids, flavonoids; basil extract contained phenolics, saponins, tannins, alkaloids, steroids, flavonoids. Both showed concentration-dependent inhibition. At 75%, inhibition zones reached 13.15 mm (strong), while the lowest were 4.70 mm (kersen, weak) and 7.30 mm (basil, moderate). Negative control showed no activity. Statistical test p=0.005 confirmed significant differences between groups. Ethanol extracts of kersen and basil leaves possess significant antibacterial activity against S. typhi, supporting their potential as natural phytotherapeutics for typhoid.
Antibacterial Activity of Mango Gedong Gincu Peel Fraction in Inhibiting the Growth of Staphylococcus aureus Brajawikalpa, Rama Samara; 'Adawiyah, Robi'atul
Indonesian Journal of Applied Research (IJAR) Vol. 6 No. 3 (2025): Indonesian Journal of Applied Research (IJAR)
Publisher : Universitas Djuanda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30997/ijar.v6i3.773

Abstract

Gedong Gincu Mango peel (Mangifera indica L.) contains a variety of secondary metabolites, including flavonoids, tannins, saponins, alkaloids, and terpenoids. These compounds play a crucial role in self-defence and exhibit significant pharmacological activity, particularly as antibacterial agents. The purpose of this study is to identify the content of secondary metabolite compounds of each fraction based on its polarity properties, and to determine the inhibitory power of Staphylococcus aureus ATCC 25293 bacteria. This study is experimental research with a post-test only control group. This study used 2 control groups and 12 treatment groups consisting of n-hexane, ethyl acetate, and butanol fractions with concentrations of 6.25%, 12.5%, 25%, 50% respectively and repeated 3 times. The antibacterial test was carried out by the well diffusion method, which was repeated 3 times on the MHA medium, and the inhibition zone was measured. The study showed that the n-hexane fraction contained alkaloids, steroids, and saponins, while the ethyl acetate and butanol fractions contained flavonoids, alkaloids, tannins, triterpenoids, and phenolics. A 50% concentration produced the greatest inhibition zone in all fractions, with mean values of 8.05 mm (moderate) for n-hexane, 15.41 mm (strong) for ethyl acetate, and 12.16 mm (strong) for butanol. The 50% ethyl acetate fraction was the most effective in inhibiting the growth of Staphylococcus aureus ATCC 25923.

Page 13 of 13 | Total Record : 125

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