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Effect of dewaxing pretreatment on composition and stability of rice bran oil: Potential antioxidant activity of wax fraction
Author(s) -
Mezouari Samia,
Kochhar S. Parkash,
Schwarz Karin,
Eichner Karl
Publication year - 2006
Publication title -
european journal of lipid science and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.614
H-Index - 94
eISSN - 1438-9312
pISSN - 1438-7697
DOI - 10.1002/ejlt.200600066
Subject(s) - wax , rice bran oil , chemistry , food science , fraction (chemistry) , sunflower oil , antioxidant , bran , composition (language) , chromatography , biochemistry , organic chemistry , raw material , linguistics , philosophy
The effect of dewaxing pretreatment on rice bran oil composition and stability was investigated, as well as the possibility to use rice bran oil waxes as natural antioxidants at high temperatures. A correlation between wax content and dewaxing time was noticed. The pre‐dewaxing process led to a loss of minor compounds, which negatively affected the oxidative stability index (OSI) of the dewaxed oil. The addition of rice bran oil waxes improved the oil stability index and heat stability of sunflower oil. An increase of 60% of the OSI and a significant decrease in polymer formation (59.2%) were observed.