Storage of Strawberries Using Low Density Polyethene Film Filled with Silver-coated Ceramic and/or Chitin

은처리 세라믹과 키틴을 첨가한 LDPE 필름을 이용한 딸기의 저장

  • 은종방 (전남대학교 식품공학과) ;
  • 김종대 (전남대학교 식품공학과, 전남대학교 응용화학공학부, 전남전문대학 화훼원예학과)
  • Published : 1997.12.01

Abstract

The quality changes of strawberries packaged using low density polyethylene (LDPE) film filled with 3% silver-coated ceramic (WC30) and filled with it and 0.1% chitin (CWC) were investigated during storage at 2$0^{\circ}C$ for 5 days. In gas composition within film bag, CWC and WC30 kept higher CO2 concentration than LDPE without silver-coated ceramic and chitin (CO) did during 5 day storage. The weight loss of strawberries during storage was the smallest in WC30 and the largest in CWC in 5 days. Hardness of strawberries was the highest in WC30 and the lowest in CO during 5 day storage. pH of strwberries was increased a little until 1 day and was not changed after 1 day storage, and soluble solid content was not changed during storage. Vitamin C content was decreased significantly until 2 day storage and decreased a little after 2 days. There is no differences in the change of vitamin C content among the packaging materials. In color measurement, lightness was the highest in WC 30 and in sensory evaluation, all characteristics also had the highest scores in WC30. In conclusion, better quality of straberries was shown in WC30 than in CWC and CO during storage.

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