수확 전 Aminoethoxyvinylglycine, 수확 전·후 1Methylcyclopropene 처리가 ‘미스홍’ 복숭아의 저온저장 중 과실 품질에 미치는 영향 = Effects of Preharvest Aminoethoxyvinylglycine and Pre or Postharvest 1Methylcyclopropene Treatments on Fruit Quality Attributes during Cold Storage in ‘Misshong’ Peaches

다국어 초록 (Multilingual Abstract)

This study was carried out to investigate the effects of preharvest aminoethoxyvinylglycine (AVG, ReTainⓇ) and sprayable 1methylcyclopropene (1MCP, HarvistaTM) and postharvest 1MCP (SmartFreshTM) treatments on fruit quality in coldstored ‘Misshong’ peaches. Flesh firmness of control fruits was decreased to 2.9 Newton (N) after 3 days of storage. However, a week before harvest (WBH) ReTainⓇ and SmartFreshTM treatments maintained firmness at 7.9 N and 12.0 N for up to 6 days of storage, respectively. Titratable acidity of control fruits was decreased from 0.33% at harvest to 0.21% after 12 days of storage. However, ReTainⓇ and SmartFreshTM treatments maintained acidity at 0.26 and 0.30% until 12 days of storage, respectively. Ethylene production of control fruits was highly increased to 45.4 µL·kg1·h1 after 12 days of storage, while at 1 WBH ReTainⓇ (23.9 µL·kg1·h1) and SmartFreshTM (21.6 µL·kg1·h1) treatments resulted in lower ethylene production than control fruits. Soluble solids content of 1 WBH ReTainⓇ (10.5°Brix) was slightly lower than control fruits (11.0°Brix) at harvest, and fruit weight loss was not affected during the storage progress. Therefore, this study suggested that 1 WBH ReTainⓇ and SmartFreshTM treatments help maintain fruit quality in ‘Misshong’ peaches during cold storage.

국문 초록 (Abstract)

본 연구는 수확 전 aminoethoxyvinylglycine(AVG, ReTainⓇ) 및 수체 살포용 1methylcyclopropene(1MCP, HarvistaTM)와 수확 후 훈증용 1MCP(SmartFreshTM) 처리가 ‘미스홍’ 복숭아 과실의 품질과 저장성에 미치는 영향을 구명하고자 실시되었다. 저장 중 과실의 경도 변화는 저장 3일 후부터 과실의 경도가 급격히 감소하여 무처리구의 경우 2.9N으로 감소하였으나, 수확 1주전 ReTainⓇ 처리구와 SmartFreshTM 처리구의 경우 저장 6일 후 경도가 각각 7.9N과 12.0N으로 상품성이 유지될 정도로 높게 유지되었다. 산 함량은 무처리구의 경우 수확 시 0.33%이던 산 함량이 저장 12일후 0.21%로 급격히 감소하였으나, 수확 전 ReTainⓇ과 HarvistaTM 처리구들의 경우 저장 12일 후 0.26 ‑ 0.30%로 무처리구와 비교하여 높게 유지되었다. 에틸렌 발생량은 저장 12일 후 무처리구의 경우 45.4µL·kg1·h1으로 급격히 증가하였으나, 수확 1주 전 ReTainⓇ 처리구와 SmartFreshTM 처리구의 경우 각각 23.9와 21.6µL·kg1·h1으로 낮은 에틸렌 발생량을 보였다. 가용성 고형물 함량은 수확 2주 전 ReTainⓇ 처리구의 경우 수확 시 10.5°Brix로 무처리구 11.0°Brix와 비교하여 다소 낮은 경향을 보였다. 그리고 저장 중 과실 감모율은 증가하였으나 처리 간의 뚜렷한 차이를 보이지 않았다. 결론적으로, 수확 1주 전 ReTainⓇ 처리와 수확 후 SmartFreshTM 처리가 ‘미스홍’ 복숭아 과실의 저장 중 품질 유지에 효과적이었다.

참고문헌 (Reference)

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