쓰가루사과를 차압예냉처리하여 1와 에 저장한 경우 표면색택의 변화는 예냉처리구가 변화가 적게 나타났다. 에 저장하였을 경우 a값은 저장기간중 거의 차이를 보이지 않았고 b값은 저장기간중 크게 증가하였으나 1에서는 a, b값 모두 저장 1개월후까지도 거의 차이를 보이지 않았다. 경도 및 총산도는 저장기간이 경과할수록 감소하였으며 예냉구의 경우가 총산도의 감소가 적게 나타났는데 무예냉구의 경우 저장기간이 길어질수록 변화폭이 크게 나타났다. 쓰가루 사

This study was conducted to investigate the effect of precooling on the qualify of Tsugaru apple. Tsugaru apple, filled in plastic container and carton, was precooled by pressure cooler and stored at 1and 25. At 25, Hunter a-value was not shown the difference significantly and Hunter b-value was increased more than a-value during l month. However, Hunter a and b-value was not increased so much at 1. Hardness and toatal acidity was decreased during storage and precooled apple was less decreased than non precooled. Free sugars in Tsugaru apple was consisted of 7.07% fructose, 2.85% glucose, and 2.53% sucrose. Free sugars were decreased during storage at 25 and 1, also, the precooling inhibited those decomposition.

• 김병삼
• 현남억
• 남궁배