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Effect of Chitosan Films Incorporated with Clove Essential Oil on Quality and Shelf Life of Pork Patties

ZHANG Hui-yun, GUO Xin-yu   

  1. College of Food and Bioengineering, Henan University of Science and Technology, Luoyang 471023, China
  • Online:2014-09-25 Published:2014-09-17

Abstract:

The objective of this study was to investigate the effect of chitosan (CH) edible films incorporated with clove
essential oil (CEO) on the quality and shelf life of pork patties stored at (4 ± 1) ℃ for 12 days. Microbiological parameters,
pH, thiobarbituric acid-reactive substances (TBARS) value, metmyoglobin (MetMb), and sensory quality were measured
on all the samples. A microbiological shelf-life extension of 6 days was achieved for the CH- and CEO + CH-treated groups
when compared to the control group. Wrapping with CEO + CH composite ?lm tended to retard the increases in TBARS
values and MetMb content. In addition, the composite ?lm maintained the acceptable sensory quality of pork patties
throughout the storage period. The results indicated that CEO + CH composite ?lm could be a promising packaging film for
extending the shelf-life of pork patties.

Key words: chitosan, clove essential oil, pork patties, antimicrobial activity, antioxidant

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