Pengaruh Jenis Pelarut Dan Suhu Terhadap Ekstrak Minyak Bekatul Padi (Oryza Sativa)

Latifah, Umi and , M. Mujiburohman, S.T., M.T., Ph.D. (2018) Pengaruh Jenis Pelarut Dan Suhu Terhadap Ekstrak Minyak Bekatul Padi (Oryza Sativa). Skripsi thesis, Universitas Muhammadiyah Surakarta.

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Abstract

Bran is a byproduct of the rice grinding process derived from the outermost layer of rice that is the part between rice grains and rice husk. Bran is one of the agricultural byproducts which is potential as raw material for food industry, because it contains starch and oil. Bran oil, or more commonly known as rice bran oil (RBO) has a smoke point of 254°C higher than other vegetable oils that can be used as cooking oil and margarine. The purpose of this research is to know the appropriate solvent and the optimum temperature in the extraction of bran oil. The solvents used were n-hexane and ethyl acetate. The research began with the screening of bran with screen size of 100 mesh followed with stabilization of brane temperature at 110°C for ± 15 minutes, extraction process and vacuum evaporation process to separate solvent and oil. The result of extraction of bran oil was then analyzed its rendemen, specific gravity, percentage of Free Fatty Acid (% FFA,) and saponification number. The results showed that the highest yield of 24,694%, with a specific gravity of 0,480 g/mL, 34,944% FFA, and the number of saponification 155. It was found that the solvent of ethyl acetate was more effective to extract brand oil than n-hexane.

Item Type:	Karya ilmiah (Skripsi)
Uncontrolled Keywords:	Rice bran, extraction, n-hexane, ethyl acetate
Subjects:	Q Science > QH Natural history Q Science > QH Natural history > QH301 Biology
Divisions:	Fakultas Teknik > Teknik Kimia
Depositing User:	UMI LATIFAH
Date Deposited:	03 Apr 2018 03:09
Last Modified:	03 Apr 2018 03:09
URI:	http://eprints.ums.ac.id/id/eprint/61041

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