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TG containing stearic acid, synthesized from coconut oil, exhibit lipidemic effects in rats similar to those of cocoa butter.

Rao, Reena and Lokesh, B. R. (2003) TG containing stearic acid, synthesized from coconut oil, exhibit lipidemic effects in rats similar to those of cocoa butter. Lipids, 38 (9). pp. 913-8. ISSN 0024-4201

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Abstract

Lipase-catalyzed interesterification was used to prepare structured TG from coconut oil TG by partially replacing some of the atherogenic saturated FA with stearic acid, which is known to have a neutral effect on lipid levels in the body. The level of stearic acid was increased from 4% in the native coconut oil to 40% in the structured lipids, with most of the stearic acid being incorporated into the sn-1 and sn-3 positions of TG. When structured lipids were fed to rats at a 10% level for a period of 60 d, a 15% decrease in total cholesterol and a 23% decrease in LDL cholesterol levels in the serum were observed when compared to those fed coconut oil. Similarly, the total and free cholesterol levels in the livers of the rats fed structured lipids were lowered by 31 and 36%, respectively, when compared to those fed coconut oil. The TG levels in the serum and in the liver showed decreases of 14 and 30%, respectively, in animals fed structured lipids. Rats fed cocoa butter and structured lipids having a similar amount of stearic acid had similar lipid levels in the serum and liver. These studies indicated that the atherogenic potential of coconut oil lipids can be reduced significantly by enriching them with stearic acid. This also changed the physical properties of coconut oil closer to those of cocoa butter as determined by DSC.

Item Type: Article
Uncontrolled Keywords: cocoa butter coconut oil structured lipids TG
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 Jun 2009 05:03
Last Modified: 28 Dec 2011 09:37
URI: http://ir.cftri.res.in/id/eprint/2051

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