4.7 Article

Influence of the in vivo addition of alpha-tocopheryl acetate with three lipid sources on the lipid oxidation and fatty acid composition of Beluga sturgeon, Huso huso, during frozen storage

Journal

FOOD CHEMISTRY
Volume 118, Issue 2, Pages 341-348

Publisher

ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2009.04.131

Keywords

Beluga sturgeon; Vitamin E; Frozen storage; Lipid oxidation; Fish oil; Soybean oil; Canola oil

Funding

  1. Tarbiat Modares University, Tehran
  2. Iran and Mazandaran Livestock and Aquatic's Feed Co., Sari, Iran

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This study was conducted to investigate the effect of dietary alpha-tocopheryl acetate (vitamin E) and oil sources on fish flesh quality characteristics of Huso huso during frozen storage. Practical-type diets containing 0 or 250 mg vitamin E kg(-1) with three lipid sources, fish oil (FO), soybean oil (SO) and canola oil (CO), were fed to H. huso for 120 days. Fillet samples were analysed fresh or after storage at -18 +/- 1 degrees C for 12 months. Replacement of FO by SO and CO in diets for H. huso significantly altered the fatty acid (FA) profile, which also influenced the FA composition during frozen storage. Dietary vitamin E had a significant effect on muscle vitamin E content and lipid oxidation during storage (P > 0.05). Oxidation was reduced for fish fed vitamin E and results showed that dietary vitamin E supplementation can slow down the level of lipid oxidation in H. huso muscles during frozen storage. (C) 2009 Published by Elsevier Ltd.

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