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- Title
Comparison of isopropanol and hexane for extraction of vitamin E and oryzanols from stabilized rice bran.
- Authors
Hu, Weicheng; Wells, John; Shin, Tai-Sun; Godber, J.
- Abstract
The effects of solvent-to-bran ratio (2∶1 and 3∶1, w/w), extraction temperature (40 and 60°C), and time (5, 10, 15, 20, and 30 min) were studied for hexane and isopropanol extraction. Increasing the solvent-to-bran ratios and extraction temperature increased the amounts of crude oil, vitamin E and oryzanol recovered for both solvents. An extraction time of 15 min was sufficient for optimum crude oil, vitamin E, and oryzanol extraction. Preheated isopropanol (3∶1 solvent/bran ratio and 60°C) extracted less crude oil ( P<.05) but more vitamin E ( P<.05) and similar amounts of oryzanol ( P>.05) relative to preheated hexane. The data suggest that isopropanol is a promising alternative solvent to hexane for extraction of oil from stabilized rice bran.
- Publication
Journal of the American Oil Chemists' Society (JAOCS), 1996, Vol 73, Issue 12, p1653
- ISSN
0003-021X
- Publication type
Article
- DOI
10.1007/BF02517967