Food Science and Preservation (한국식품저장유통학회지)

The Korean Society of Food Preservation (한국식품저장유통학회)
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The effect of decylcyclopropene derivative on the softening of 'Fuyu' persimmon fruits

Decylcyclopropene 유도체가 부유 단감 과실의 연화에 미치는 영향

  • 최성진 (대구가톨릭대학교 생명공학과) ;
  • 안광환 (경남농업기술원 단감연구소)
  • Received : 2014.11.13
  • Accepted : 2015.11.16
  • Published : 2016.02.28
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Abstract

In order to develop a sprayable ethylene antagonist, unlike 1-methylcyclopropene (MCP), we synthesized 2-decylcyclopropene-1-carboxylic acid ethyl ester (DCPE) as a derivative of cyclopropene and tested its effect on the flesh softening of 'Fuyu' persimmon fruits. The fruits on trees were sprayed with $4{\cdot}10^{-4}$ M DCPE solution before harvest. After harvest, the persimmon fruits were stored at a low temperature for 1.5 months. The ripening progress of the fruits was then evaluated during storage at ambient temperature ($20^{\circ}C$). Flesh softening, a measure of ethylene response, was considerably delayed up to 7 days after DCPE treatment. However control fruits was rapidly softened after 3-day storage. The treatment effect of DCPE at $4{\cdot}10^{-4}$ M was also compared to that of 1-MCP at 1 ppm. DCPE was storable at refrigerated conditions for at least one month without any loss. The results show that DCPE could be a potential sprayable agent for the prevention of flesh softening of persimmon fruit.

상온에서 기체로 존재하는 기존의 에틸렌 작용억제제인 1-MCP와 달리 상온에서 액상으로 존재하여 분무살포가 가능한 에틸렌 작용억제제를 개발할 목적으로 cyclopropene 유도체의 하나로서 2-decylcyclopropene-1-carboxylic acid ethyl ester(DCPE)를 합성하여 부유 단감을 대상으로 그 처리효과를 분석하였다. $4{\cdot}10^{-4}$ M의 DCPE를 수확 전에 분무살포 처리한 단감을 수확하여 45일간 저온저장한 후 상온($20^{\circ}C$)에 1주간 방치하면서 성숙 관련 지표의 변화를 조사한 결과, 에틸렌의 작용에 의해 유발되는 과육 연화의 진행이 효과적으로 지연되었으며, 그 억제 효과는 1 ppm의 1-MCP 처리와 대등한 수준이었다. 또한 DCPE는 적어도 한달간 성분 손실 없이 냉장 보관이 가능하였다. 따라서 DCPE는 단감 과실의 수확 후 과육의 연화를 지연시키는 약제로의 활용이 가능할 것으로 기대된다.

Keywords

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