二氧化氯对西周密25号哈密瓜采后生理及贮藏品质的影响

Effects of Chlorine Dioxide(Cl O2)Treatment on Postharvest Physiology and Storage Quality of Cantaloupe 'Xizhoumi 25'

为探讨哈密瓜绿色保鲜新技术,研究西周密25号哈蜜瓜二氧化氯处理在贮藏期间果实品质的变化规律。试验采用4种不同贮藏条件[在温度(4±0.5)℃条件下对照、6.342、10.57、14.798 mg/m3二氧化氯处理]对厚皮甜瓜采后贮藏品质和生理特性的影响,贮藏过程中每7天测定呼吸强度、乙烯释放速率、果肉硬度、维生素C含量、可溶性固形物含量、可滴定酸含量、还原糖含量、总糖含量、过氧化物酶含量和腐烂指数的情况。研究结果表明:对比CK、T1、T2、T34种处理方式,T1(二氧化氯6.342 mg/m3)方式处理甜瓜,能够有效抑制甜瓜的呼吸强度,延缓果实衰老,T3(二氧化氯14.798 mg/m3)方式处理甜瓜,能够降低乙烯释放速率,并且在T3情况下,甜瓜的硬度、TSS、TA、还原糖、总糖、POD活性都比较高,T2(二氧化氯10.57 mg/m3)相对较差,综合所有因素,T3处理是更有利于西周密25号哈密瓜的贮藏保鲜。

In order to explore the new and safe preservation technology for cantaloupe＇s storage. The effects of 4 storage conditions （CK, 6.342, 10.57, 14.798 mg/m3 chlorine dioxide treatment） on the storage quality and physiological characteristics of melon in cantaloupe ＇Xizhoumi 25＇ were studied. The respiration intensity and ethylene release were measured every 7 days during storage. Rate, pulp hardness, vitamin C content, soluble solids content, titratable acid content, reducing sugar content, total sugar content, peroxidase content and de cay index. The results showed that the treatment of melon with CK, T1, T2 and T3 , T1 （ chlorine dioxide 6.342 mg/m3） could effectively inhibit the respiration of melon, delay the fruit senescence, and manage the melon with T3 （chlorine dioxide 14.798 mg/m3） can reduce the ethylene release rate, and in T3 case, the hard-ness of melon, TSS, TA, reducing sugar, total sugar, POD activity are relatively high, T2 （chlorine dioxide 10.57 mg/m3） was relatively poor, comprehensive all factors, T3 was the most good choice.