Suitability Judgment of Storage Conditions by Internal Gas Concentration of 'Fuji' Apples under CA Storage

CA저장 중 후지 사과의 내부 기체농도에 의한 저장조건의 적합성 판단

  • Chung, Hun-Sik (Postharvest Technology Research Institute, Kyungpook National University) ;
  • Choi, Jong-Uck (Department of Food Science & Technology, Kyungpook National University)
  • 정헌식 (경북대학교 농산물가공저장유통기술연구소) ;
  • 최종욱 (경북대학교 식품공학과)
  • Published : 1999.10.31

Abstract

This study was conducted to develop a index for the judgment of suitability of storage conditions by internal gas concentration of 'Fuji' apples under CA storage, and was examined the relationship between the levels of quality characteristics(flesh firmness, titratable acidity and surface green color) and the infernal ethylene and carbon dioxide concentrations of apples. The levels of quality characteristics were not decreased for terms of storage when the infernal ethylene concentration of apples was below 10 ppm, but the levels of quality characteristics were sharply decreased when it was above 10 ppm of Internal ethylene. The high levels of quality characteristics were maintained by the lower internal carbon dioxide concentration of apples, especially at below 2% of internal carbon dioxide. These result showed that the suitable condition for CA storage of 'Fuji' apples was a condition for having below 10 ppm of internal ethylene and below 2% of internal carbon dioxide in apples. The internal ethylene and carbon dioxide concentrations of apples during CA storage can be used as a crucial index for the suitability judgment of storage conditions.

Keywords

apple;storage;ethylene;respiration