수출딸기의 수확 후 예냉 및 저장온도에 따른 품질변화 = Qualitative Changes in Precooling and Storage Temperatures on the Post-harvest Management of the Fruits in Strawberry for Export

다국어 초록 (Multilingual Abstract)

A study was conducted to examine the effect of precooling and storage temperatures on the storage life of ‘Maehyang’ strawberry for export. Fruits at a 80% ripe stage were harvested from a commercial greenhouse in Gyeongsangnamdo Jinju on January 11, 2011. Fruits were precooled at 0, 2, 4℃ for 2-5 hours, and then transported for about 30 minutes. And stored in set chamber at 4, 8, 10℃, immediately. Fruits were examined for their changes in weight, hardness, Hunter color values, soluble solid content (SSC), acidity, and incidence of gray mold (Botrytis cinerea) during storage. The fresh weight decreased during storage at all temperatures. Especially, strawberry treated the lowest precooling and storage temperatures was the greatest in quality. The hardness was drastically decreased in precooled at 4℃ and stored at 10℃ after storage 10 days. SSC was the greatest when strawberry stored at the lowest temperature. Acidity increased during storage at all temperatures. But in the last day after storage, the strawberry of precooled at 4℃ and stored at 10℃ was the highest as 0.7%. Gray mold was the greatest at 10℃ storage temperature. The results indicate that effectiveness for keeping the freshness was best achieved by precooling at 0℃ and storage at 4℃.

국문 초록 (Abstract)

예냉온도와 저장온도가 수출 딸기 ‘매향’의 저장성에 미치는 영향을 알아보고자 본 연구를 수행하였다. 2011년 1월 11일에 숙도 80%의 과실을 경상남도 진주지역의 상업적 온실에서 수확하여 0, 2, 4℃로 2-5시간 동안 예냉한 딸기를 30분 만에 실험실로 수송하여 4, 8, 10℃로 설정된 챔버에 저장하여 실험을 진행하였다. 저장하는 동안 딸기의 무게, 경도, 색도, 당도 및 산도의 변화와 잿빛곰팡이 발생률을 조사하였다. 딸기의 무게는 저장기간 중 모든 온도처리에서 감소하였고, 특히 예냉 및 저장온도가 가장 낮은 처리구에서 품질이 가장 우수하였다. 경도는 예냉온도 4℃, 저장온도 10℃ 처리구에서는 저장 후 10일째부터 급격히 감소하였다. 당도는 가장 낮은 온도인 4℃에 저장하였을 때 우수하였다. 산도는 모든 온도처리에서 증가하였으나 실험종료 마지막 날 4℃ 예냉온도와 10℃ 저장온도 처리구에서 0.7%로 가장 높았다. 잿빛곰팡이는 10℃ 저장에서 가장 많이 발생했다. 따라서 딸기의 신선도를 장기간 유지하기 위해서는 0℃에 예냉하여 4℃에 저장하는 것이 효과적인 것으로 판단된다.

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