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All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) Journal of Research and Technology
A’yuni, Qurrota
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Physics

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TRANSESTERIFIKASI MINYAK DEDAK PADI SECARA IN-SITU DENGAN BANTUAN GELOMBANG MIKRO Rahkadima, Yulia Tri; A’yuni, Qurrota
Journal of Research and Technology Vol. 3 No. 2 (2017): JRT Volume 3 No 2 Des 2017
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (246.922 KB) | DOI: 10.55732/jrt.v3i2.232

Abstract

Rice bran as rice milling waste is very promising to be used as raw material of oil producer such as biodiesel oil. The production process by using of microwaves has been studied in this research. The production process was carried out in-situ where the extraction process of rice bran oil and the biodiesel formation reaction occured simultaneously in microwave radiation. Rice bran was obtained from Lamongan area with IR 64 type. The reaction was carried out in modified microwaves with variation of operating conditions on reaction times (10, 30 and 50 min) and weight ratio of rice bran to methanol (1:4, 1:8, 1:12, 1:16 and 1:20). The results obtained were then analyzed by product yield and free fatty acid content. The optimum condition was obtained in the highest yield of the product with the lowest free fatty acid. The results showed that the optimum condition was obtained at reaction time of 30 minutes with the ratio of ricebran:methanol at 1:12. Keywords: Microwave, In-situ, Rice Bran Oil, Transesterification.
TRANSESTERIFIKASI MINYAK DEDAK PADI SECARA IN-SITU DENGAN BANTUAN GELOMBANG MIKRO Rahkadima, Yulia Tri; A’yuni, Qurrota
Journal of Research and Technology Vol. 3 No. 2 (2017): JRT Volume 3 No 2 Des 2017
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v3i2.232

Abstract

Rice bran as rice milling waste is very promising to be used as raw material of oil producer such as biodiesel oil. The production process by using of microwaves has been studied in this research. The production process was carried out in-situ where the extraction process of rice bran oil and the biodiesel formation reaction occured simultaneously in microwave radiation. Rice bran was obtained from Lamongan area with IR 64 type. The reaction was carried out in modified microwaves with variation of operating conditions on reaction times (10, 30 and 50 min) and weight ratio of rice bran to methanol (1:4, 1:8, 1:12, 1:16 and 1:20). The results obtained were then analyzed by product yield and free fatty acid content. The optimum condition was obtained in the highest yield of the product with the lowest free fatty acid. The results showed that the optimum condition was obtained at reaction time of 30 minutes with the ratio of ricebran:methanol at 1:12. Keywords: Microwave, In-situ, Rice Bran Oil, Transesterification.
Adsorption Performance of Turmeric as Biosorbent for Free Fatty Acid Removal in Used Cooking Oil Devianti, Vika Ayu; Arifiyana, Djamilah; A’yuni, Qurrota
Jurnal Penelitian Pendidikan IPA Vol 11 No 2 (2025): February
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i2.10201

Abstract

Repeated use of cooking oil produces hazardous compounds such as free fatty acids, carbonyls, and peroxides. This study aims to examine the effectiveness of turmeric as a bio-adsorbent in reducing free fatty acid levels, peroxide numbers, and water content in used cooking oil, and determine the appropriate adsorption isotherm model. Turmeric is one of the biopharmaceutical plants whose availability is quite abundant in Indonesia. Adsorption was carried out with variations in adsorbent mass and contact time. The result showed that turmeric is effective in reducing free fatty acid levels, peroxide value, and water content with adsorption efficiency of up to 54.02, 48.78, and 42.89%, respectively. The adsorption isotherm analysis suggested that the adsorption of free fatty acids followed the Freundlich model rather than the Langmuir model. This study reveals that turmeric has the potential to be a viable bio-adsorbent for enhancing the quality of used cooking oil.
Co-Authors Devianti, Vika Ayu Djamilah Arifiyana Yulia Tri Rahkadima