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Influence of viscosity on wax settling and refining loss in rice bran oil.

Gopala Krishna, A. G. (1993) Influence of viscosity on wax settling and refining loss in rice bran oil. Journal of the American Oil Chemists' Society, 70 (9). 895-898, 8 ref..

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Abstract

The role of viscosity on wax settling and refining loss in rice bran oil (RBO) was studied using model systems of refined peanut oil and RBO of different free fatty acids contents. Wax was the only constituent of RBO that significantly increased the viscosity (81.5%) of oil. Monoglycerides synergistically raised the viscosity of the oil (by 114.2%) and lowered the rate of wax settling. Although a reduction in the viscosity of the oil significantly decreased the refining loss, the min. loss attained was still 20% more than the theoretically predicted value. It is concluded that some chemical constituents, such as monoglycerides, must be removed before dewaxing; and that removal of oryzanol and phospholipids would reduce refining loss.

Item Type: Article
Uncontrolled Keywords: OILS-; OILS-VEGETABLE; PHYSICAL-PROPERTIES; PROCESSING-; VEGETABLE-PRODUCTS; VISCOSITY-; RICE-BRAN-OILS
Subjects: 600 Technology > 08 Food technology > 19 Lipids-oils/fats
Divisions: Lipid Science and Traditional Foods
Depositing User: Food Sci. & Technol. Information Services
Date Deposited: 29 Jul 2011 10:41
Last Modified: 29 Jul 2011 10:41
URI: http://ir.cftri.com/id/eprint/6368

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