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Nutritional evaluation of structured lipid containing omega 6 fatty acid synthesized from coconut oil in rats

Rao, Reena and Lokesh, B. R. (2003) Nutritional evaluation of structured lipid containing omega 6 fatty acid synthesized from coconut oil in rats. Molecular and Cellular Biochemistry, 248 (1-2). pp. 25-33. ISSN 0300-8177

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Abstract

Coconut oil is rich in medium chain fatty acids, but deficient in polyunsaturated fatty acids (PUFA). Structured lipids (SL) enriched with omega 6 PUFA were synthesized from coconut oil triglycerides by employing enzymatic acidolysis with free fatty acids obtained from safflower oil. Rats were fed a diet containing coconut oil, coconut oil-safflower oil blend (1:0.7 w/ w) or structured lipid at 10% levels for a period of 60 days. The SL lowered serum cholesterol levels by 10.3 and 10.5% respectively in comparison with those fed coconut oil and blended oil. Similarly the liver cholesterol levels were also decreased by 35.9 and 26.6% respectively in animals fed structured lipids when compared to those fed on coconut oil or the blended oil. Most of the decrease observed in serum cholesterol levels of animals fed structured lipids was found in LDL fraction. The triglyceride levels in serum showed a decrease by 17.5 and 17.4% while in the liver it was reduced by 45.8 and 23.5% in the structured lipids fed animals as compared to those fed coconut oil or blended oil respectively. Differential scanning calorimetric studies indicated that structured lipids had lower melting points and solid fat content when compared to coconut oil or blended oils. These studies indicated that enrichment of coconut oil triglycerides with omega 6 fatty acids lowers its solid fat content. The omega 6 PUFA enriched structured lipids also exhibited hypolipidemic activity.

Item Type: Article
Uncontrolled Keywords: coconut oil, structured lipid, omega 6 PUFA, blood lipids, liver lipids, differential scanning calorimeter
Subjects: 600 Technology > 08 Food technology > 19 Lipids-oils/fats
600 Technology > 08 Food technology > 16 Nutritive value
Divisions: Lipid Science and Traditional Foods
Depositing User: Food Sci. & Technol. Information Services
Date Deposited: 29 Jun 2009 04:52
Last Modified: 28 Dec 2011 09:38
URI: http://ir.cftri.com/id/eprint/2062

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