수확전후 키토산 및 고농도 CO2처리와 참외 저장성
Effect of Pre-harvest and Post-harvest Treatment of Chitosan and High Pressure CO2 on the Shelf-life of Oriental Melons
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초록
수확전후 키토산과 고농도 CO2처리가 참외 과실의 저장에 미치는 영향을 검토하고자 본 연구를 수행하였다. 수확 후 키토산 침지와 CO2처리는 전반적으로 과실 선도에 영향을 주지 못하였으며 키토산 농도를 1%까지 높여도 뚜렷한 효과를 찾을 수 없었다. 키토산 수확 후 처리와 달리 수확 전 처리는 과실경도를 증진시켰으며 1회 처리보다 2회 처리에서 더욱 효과적이었다. 가용성 고형물 및 산함량과 같은품질 지표는 키토산 처리의 영향을 받지 않았다. CO2처리에 의한 저장성 증진 효과는 관찰되지 않았다. 수확 전 2회 처리가 과피 장해 발생을 지연시켜주었다. 수확 전 키토산 참외 저장성 증진 효과가 있으며 1회보다 2회 처리에서 더욱 효과적이었다. 그러나 고농도 CO2단기 처리 효과는 뚜렷하지 않았다.
Abstract
This study was aimed to examine the potential of pre- and post-harvest treatment of chitosanand high pCO2 on the shelf-life of oriental melon fruit. Post-harvest dipping treatment ofchitosan and high pCO2 did not bring any significant effect on the freshness of fruit in general,even at 1% of chitosan. Unlike post-harvest treatment, pre-harvest spray of chitosan significantlyincreased fruit firmness and firmness increase was higher in double sprays than single one. Theinternal quality such as soluble solid content and acidity was not altered by chitosan spray. Noadditional effect of high pCO2 with pre-harvest treatment of chitosan was found. Double spraysof chitosan showed significant effect on keeping visual appearance through delaying theincidence of skin browning. There was a potential of pre-harvest chitosan treatment on theshelf-life increase of oriental melon fruit and double sprays were better than single spray. However, high pCO2 seemed not to be effective on the storability of oriental melon fruit.
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