Nutritional properties of mussels Mytilus galloprovincialis

Hanna Leontowicz, Maria Leontowicz, Jacek Namiesnik, Jerzy Drzewiecki, Yong Seo Park, Zofia Zachwieja, Pawel Zagrodzki, Arkadi Gorinstein, Simon Trakhtenberg, Shela Gorinstein*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

The aim of this study was to determine the quality indices and assess the influence of diets supplemented with mussels from contaminated (MCont) and non-contaminated areas (MNCont) on some indices of protein and lipid metabolism in rats fed with cholesterol. A wide range of in vitro tests demonstrated that mussels from contaminated area have a higher content of proteins, lipids and higher antioxidant capability. In the in vivo experiment, 28 male Wistar rats were divided into 4 diet groups each of 7 and named Control, Cholesterol (Chol), Chol/MCont and Chol/MNCont. During 30 days of the experiment rats of all four groups were fed basal diet (BD), supplemented with 1% of Chol, 1% of Chol and 5.6% of mussel's dry matter (DM) from contaminated and 1% Chol and 5.6% of mussel DM from non-contaminated areas for Chol/MCont and Chol/MNCont groups, respectively. At the end of the experiment, a high digestibility coefficient of DM and crude protein in the Chol/MCont and Chol/MNCont groups of rats was found: 93.56 and 93.87% and 91.64 and 91.36%, respectively, and the differences were not significant (P > 0.05). However, the protein efficiency ratio was significantly higher in the Chol/MCont and Chol/MNCont than in the Control and Chol diet groups. Also the level of nitrogen retention as shown by feces and urine examination was higher in the Chol/MCont and Chol/MNCont groups. Diet, supplemented with mussel dry matter from both contaminated and non-contaminated areas significantly hindered the rise in plasma lipids and also hindered the decrease in plasma antioxidant activity. Minor changes were fixed in the protein profile of rat's plasma after both mussels' diet. In conclusion, supplementation of diets, containing cholesterol with mussels' DM from both contaminated and non-contaminated areas improves animals' protein metabolism and positively affects plasma lipid profile and plasma antioxidant activity. Antioxidant tests can be used as an additional index for the quality of mussels.

Original languageEnglish
Pages (from-to)1251-1258
Number of pages8
JournalEuropean Food Research and Technology
Volume227
Issue number4
DOIs
StatePublished - Aug 2008

Keywords

  • Contaminated and noncontaminated areas
  • Mussels
  • Protein and lipid metabolism
  • Rats

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