急速降温下库尔勒香梨销地适宜贮藏条件的研究

摘要

以库尔勒香梨为试材，可溶性固形物含量、可滴定酸含量、硬度、色差、呼吸强度、乙烯释放量为评价指标，研究了急速降温下不同温度（-0.7、0.5℃）与湿度（85%RH、90%RH）组合对库尔勒香梨销地贮藏品质的影响。结果表明：-0.7℃+85%RH处理乙烯峰出现最晚，乙烯释放量水平较低；整个贮藏期内呼吸强度处于较低水平；果皮a*值变化最小，趋势最为平缓，较好地抑制了果实由红转绿的进程；明显抑制了果实硬度的下降。综合来看，该处理为急速降温下最适宜香梨贮藏的温湿度组合。%Korla pears were used as experimental materials, the soluble solids content, hardness, release rate of ethylene and respiration intensity as the indexes of storage quality were investigated in this paper. The effect of different temperature (-0.7,0.5℃) and humidity (85%RH,90%RH) on the storage quality of Korla pears at selling places were studied. The results showed that: -0.7 ℃+85 %RH treatment significantly decreased the respiratory rate and ethylene production of korla pears, postponed the ethylene peak coming, inhibited the a*changing of the peel, and depressed the decreasing rate of firmness and soluble solids content, compared with the other storage environments. In a word, the-0.7℃+85%RH was the best storage condition for Korla pears under rapid cooling.