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All Journal IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Journal of Applied Agricultural Science and Technology
Parwiyanti Parwiyanti
Universitas Sriwijaya
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Environmental Science

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POME Processing with Bioremediation Using Indigenous Bacteria (Bacillus toyonensis and Stenotrophomonas rhizophila), Electrocoagulation, and Bioremediation assisted with Electrocoagulation Methods Bambang Yudono; Sari Ulfariani; Fatma Fatma; Parwiyanti Parwiyanti; Eka Lidiasari
IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Vol 7, No 3 (2022): October 2022
Publisher : IJFAC (Indonesian Journal of Fundamental and Applied Chemistry)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24845/ijfac.v7.i3.122

Abstract

Palm oil mill effluent (POME) is wastewater containing dissolved materials with concentrations above the threshold. Generally, POME processing in Indonesia uses an open pond system. It is less efficient because it requires large areas and causing greenhouse gas effects. This research aims to improve the POME processing, three methods were studied; bioremediation using enrich indigent lypholitics bacteria (Bacillus toyonensis and Stenotrophomonas rhizophila.), electrocoagulation system, and combination of those methods. The parameters were measured were oil and fat contents, COD, pH, TSS, TDS, Fe and Cu metals. In the electrocoagulation method, the electrodes were used iron electrodes with a variation of electrical voltage 1.5, 3, 4.5 and 6 V. The bioremediation using indigent bacteria results in the removal of oil and fat -74.62%, COD -52.44%, TSS -43.11% and pH 6.38 at the incubation time for 6 days, TDS 21.42%, Fe -5.3% and Cu -64.70%. The electrocoagulation methods results oil and fat removal were -93.27%, COD was -85.71%, TDS -39%, TSS -84%, Cu -46%, Fe +92.35%, and pH 11.39 at a voltage of 6 V for 6 h. The combination of the two methods can reduce oil and fat levels by -87.39%, COD -56.70%, TDS -0.42%, TSS +15.88%, Cu -23.33%, Fe +93.74% and pH 8.82. The three methods were studied can improve the POME processing significantly.
Characteristics of Composite Flour Made of Kidney Bean and Soybean Merynda Indriyani Syafutri; Friska Syaiful; Eka Lidiasari; Parwiyanti Parwiyanti; Sugito Sugito; Erlita Indah Astari; Jery Mega Saputra
Journal of Applied Agricultural Science and Technology Vol. 7 No. 2 (2023): 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.v7i2.132

Abstract

Kidney beans and soybeans have the potential to be developed because they contain good nutrient. Kidney beans and soybeans are sources of vegetable protein. One form of development of legume products is composite flour. The aim of this study was to analyze the physical and chemical characteristics of composite flour made of kidney beans and soybeans. The experiment was designed using Completely Randomized Design with nine treatments and each treatment was replicated three times. The factor investigated was formulation of composite flour made from kidney bean and soybean (90%:10%; 80%:20%; 70%:30%; 60%:40%; 50%:50%; 40%:60%; 30%:70%; 20%:80%; and 10%:90%). The swelling power, solubility, color, white degree, moisture content, ash, protein, fat, and carbohydrate content were analyzed. The results showed that the higher percentage of soybean flour caused a decrease on  swelling power, white degree, and redness of composite flour, but it increased the value of solubility, lightness and yellowness of composite flour. Composite flour with higher percentage of kidney bean flour had higher carbohydrate level, while composite flour with higher percentage of soybean flour had higher protein and fat content. The moisture contents of composite flour made of kidney bean and soybean were in accordance with the standard for beans flour products.
Co-Authors Bambang Yudono Eka Lidiasari Erlita Indah Astari Fatma Fatma Jery Mega Saputra Merynda Indriyani Syafutri Sari Ulfariani Sugito Sugito Syaiful, Friska