Effect of dietary replacement of sunflower oil with perilla oil on the absolute fatty acid composition in Nile tilapia (GIFT)

Food Chem. 2014 Apr 1;148:230-4. doi: 10.1016/j.foodchem.2013.10.038. Epub 2013 Oct 19.

Abstract

This study evaluated the effect of the dietary replacement of sunflower oil with perilla oil in Nile tilapia (GIFT strain) at 0, 10, 20 and 30 days. There was an increase in total omega 3 fatty acids (n-3) in muscle tissue (from 63.6 to 181.5 mg g(-1)) and a decrease in total concentration of omega 6 fatty acids (n-6) ranging between 255.6 and 196.1 mgg(-1). Amongst the n-3 fatty acids, the concentrations of alpha-linolenic acid (18:3n-3) and docosahexaenoic acid (20:6n-3) increased by 9.4 and 1.9 times, respectively, after 30 days for the perilla oil-enriched diet. The n-6/n-3, polyunsaturated and saturated fatty acids (PUFA/SFA), and polyunsaturated and monounsaturated fatty acids (PUFA/MUFA) ratios tended to stabilize after 20 days under the perilla oil-enriched diet. Incorporation of perilla oil as a lipid source in the diet of tilapia for 20 or 30 days resulted in significant changes in the fatty acid composition of the fish muscle tissue, contributing to increase its nutritional value.

Keywords: Alpha-linolenic acid; Docosahexaenoic acid; Eicosapentaenoic acid; Omega-3; n-6/n-3.

MeSH terms

  • Animal Feed / analysis*
  • Animals
  • Cichlids / metabolism*
  • Dietary Supplements / analysis*
  • Fatty Acids / chemistry*
  • Fatty Acids / metabolism
  • Fish Oils / chemistry
  • Fish Oils / metabolism
  • Meat / analysis
  • Muscle, Skeletal / chemistry*
  • Muscle, Skeletal / metabolism
  • Nutritive Value
  • Plant Oils / metabolism*
  • Seafood / analysis
  • Sunflower Oil
  • alpha-Linolenic Acid / metabolism*

Substances

  • Fatty Acids
  • Fish Oils
  • Plant Oils
  • Sunflower Oil
  • alpha-Linolenic Acid
  • perilla seed oil