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Evaluation of Active EVOH Packaging Films Incorporated with Essential oils for Quality Preservation of Grass Carp during Cold Storage

YANG Hui, YANG Fu-xin, OU Li-juan, LI Li*   

  1. College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China
  • Online:2014-11-25 Published:2014-12-09

Abstract:

Ethylene-vinyl alcohol copolymer (EVOH) films incorporated with 2% grape seed oil, 2% clove essential
oil, and 1% grape seed oil + 1% clove essential oil, respectively, were prepared by extrusion blow molding. The
efficiency of the EVOH films in preserving the quality of grass carp during cold storage was assessed with respect
to total volatile basic nitrogen (TVB-N), aerobic plate count, pH, TBA, water holding capacity (WHC) and texture
properties. The results indicated the film containing 1% grape seed oil and 1% clove essential oil could effectively
maintain the fish freshness and extend the shelf life to 8 days under cold-storage conditions.

Key words: preservation, grass carp, grape seed oil, clove, ethylene-vinyl alcohol copolymer (EVOH)

CLC Number: