Effects of chitosan combined with nisin treatment on storage quality of large yellow croaker (Pseudosciaena crocea)

Food Chem. 2016 Jul 15:203:276-282. doi: 10.1016/j.foodchem.2016.01.122. Epub 2016 Jan 30.

Abstract

Effects of chitosan combined with different concentrations of nisin on quality enhancement of large yellow croaker (Pseudosciaena crocea) stored at 4 °C were evaluated for 8 days. Changes in sensory score and volatile spoilage products, total viable counts (TVC), and physiochemical indexes including weight loss, colour, pH, total volatile basic nitrogen (TVB-N), and K-value were examined. Results demonstrated that nisin-treated samples presented better quality preservation effects than chitosan alone. 1% chitosan combined with 0.6% nisin presented optimal quality enhancement effects, such as moisture loss control, volatile spoilage inhibition, TVB-N reduction, TVC growth control, and colour and sensory acceptability maintenance. Therefore, chitosan combined with nisin is promising in large yellow croaker shelf life extension.

Keywords: Chitosan; Large yellow croaker; Nisin; Shelf life; Storage quality.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Chitosan / chemistry*
  • Food Preservation / methods*
  • Food Preservatives / chemistry*
  • Food Quality
  • Food Storage / methods*
  • Gas Chromatography-Mass Spectrometry
  • Nisin / chemistry*
  • Nitrogen / analysis
  • Perciformes*
  • Solutions

Substances

  • Food Preservatives
  • Solutions
  • Nisin
  • Chitosan
  • Nitrogen