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Oryzanol content of Indian rice bran oil and its extraction from soap stock.

IR@CSIR-CFTRI

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Relation http://ir.cftri.com/6437/
 
Title Oryzanol content of Indian rice bran oil and its extraction from soap stock.
 
Creator Seetharamaiah, G. S.
Prabhakar, J. V.
 
Subject 07 Waste utilization
19 Lipids-oils/fats
01 Rice
 
Description Oryzanol content of commercial rice bran oil was 1.34-1.95%, hexane extracted oil 1.12-1.38%, and chloroform:methanol (2:1) extracted oil 2.55-2.61%. The soap stock obtained by alkali refining of the oil contained 1.3-3.1% oryzanol. Optimum pH (levels tested 8.0-10.5) for extraction from soap stock was approx. 9.5. Diethyl ether was a better solvent than acetone. The oryzanol concn. could be upgraded by alumina column chromatography and recrystallization using methanol and methanol-acetone (2:1). The recrystallized material had an m.p. of 133-139 degree C and absorption maxima at 314, 290 and 230 nm in petroleum ether.
 
Date 1986
 
Type Article
PeerReviewed
 
Format pdf
 
Language en
 
Identifier http://ir.cftri.com/6437/1/JFST%2023%2C%201986%20270.pdf
Seetharamaiah, G. S. and Prabhakar, J. V. (1986) Oryzanol content of Indian rice bran oil and its extraction from soap stock. Journal of Food Science and Technology, India, 23 (5). 270-273, 19 ref..