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All Journal Jurnal Ilmiah Rekayasa Pertanian dan Biosistem AGROSAINSTEK: Jurnal Ilmu dan Teknologi Pertanian
Arzita
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science

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Modeling Microwave Oven Sterilization of Palm Fruit using Response Surface Methodology (RSM) Fortuna, Dewi; Daulay, Diana Pebriani; Lavlinesia; Arzita; Sovia, Eli
Jurnal Ilmiah Rekayasa Pertanian dan Biosistem Vol 13 No 2 (2025): Jurnal Ilmiah Rekayasa Pertanian dan Biosistem
Publisher : Fakultas Teknologi Pangan & Agroindustri (Fatepa) Universitas Mataram dan Perhimpunan Teknik Pertanian (PERTETA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jrpb.v13i2.1190

Abstract

The conventional steam-based sterilization of crude palm oil (CPO) in Indonesia is known to be energy- and water-intensive, as well as time-consuming. This necessitates more efficient and sustainable alternatives, such as microwave oven heating. While microwave applications in CPO sterilization have been explored as a more efficient and sustainable alternative, existing studies often lack comprehensive optimization and a systematic investigation of key process parameters. This study aimed to optimize fresh fruit bunch (FFB) sterilization using a microwave oven to identify optimal operating parameters for maximizing oil extraction yield and minimizing Free Fatty Acid (FFA) content. The Central Composite Design (CCD) within Response Surface Methodology (RSM) was employed as a statistical technique to model the process and ensure the validity of the results. Three independent variables were investigated: sterilization time (6–20 min), fruit mass (396–1104 g), and fruit maturity level (ripe and over-ripe), resulting in twenty-six experimental combinations. Optimal conditions for maximum yield and lowest FFA were determined at 6 min sterilization time and 550 g fruit mass for both maturity levels. Conversely, suboptimal conditions at 11.5 min and 150 g fruit mass for both maturity levels resulted in the lowest yield and highest FFA. This research provides crucial insights for developing an optimized microwave sterilization technique, enhancing palm oil processing efficiency and product quality. The findings underscore the potential for a scalable, low-energy sterilization method that could significantly reduce the environmental footprint of CPO production, instilling optimism about the positive impact of this research.
Respons Tiga Varietas Kacang Hijau terhadap Aplikasi Pupuk Boron dengan Dosis Bervariasi: Respons Tiga Varietas Kacang Hijau terhadap Aplikasi Pupuk Boron dengan Dosis Bervariasi Fitriani, Miranti Sari; Arzita; Fathia, Nyimas Myrna Elsa; Nusifera, Sosiawan; Arzita, Arzita
AGROSAINSTEK: Jurnal Ilmu dan Teknologi Pertanian Vol 9 No 2 (2025): AGROSAINSTEK: Jurnal Ilmu dan Teknologi Pertanian
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/5201xp87

Abstract

Boron is a micronutrient that plays an important role in plant growth and development. This research aims to determine the response of several varieties to the application of different doses of boron fertilizer and to obtain the best dose for each variety. The experiment was arranged in a randomized block design with a two-factor factorial pattern with two replications. The first factor is three varieties of green beans (Kutilang, Vima 2, Sampoeng) and the second is five levels of boron fertilization doses (0 kg ha-1, 1,5 kg ha-1, 3,0 kg ha-1, 4,5 kg ha-1, 6,0 kg ha-1). The variables observed are growth, yield and yield components variables. Data were analyzed using analysis of variance and Duncan's test, each at the 5% level. The optimum dose for each variety was obtained through second order (quadratic) regression analysis. The results show that there are differences in the response between the three varieties to boron fertilizer in the variable seed weight per plant. The influence of varieties can be seen independently on all variables, the influence of boron fertilizer has an independent influence on all variables except the number of primary branches. The optimum dose of boron for the kutilang variety is 2.39 kg ha-1, the Vima 2 variety is 3.36 kg ha-1, and Sampoeng, 3.19 kg ha-1.
Co-Authors Arzita, Arzita Dewi Fortuna Diana Pebriani Daulay Fathia, Nyimas Myrna Elsa Lavlinesia Miranti Sari Fitriani Sosiawan Nusifera Sovia, Eli