不同保鲜处理对青皮核桃采后贮藏品质的影响  

Improve Postharvest Storage Quality of Green Peel Walnut by Coating Treatment

作　　者：张欢欢 刘佳[2] 李亚玲[1] 杨莉玲[2] 孙俪娜 祝兆帅 崔宽波[2] ZHANG Huanhuan;LIU Jia;LI Yaling;YANG Liling;SUN Li'na;ZHU Zhaoshuai;CUI Kuanbo(Xinjiang Agricultural University,Urumqi,Xinjiang 830052,China;Agricultural Mechanization Institute,Xinjiang Academy of Agricultural Sciences,Urumqi,Xinjiang 830091,China)

机构地区：[1]新疆农业大学,新疆乌鲁木齐830052 [2]新疆农业科学院农业机械化研究所,新疆乌鲁木齐830091

出　　处：《农产品加工》2021年第9期43-47,共5页Farm Products Processing

基　　金：自治区重点研发任务专项项目(2017B01003-2);乌鲁木齐市科技局人才工程计划项目(P151010003)。

摘　　要：以新疆青皮核桃为研究对象,采用1%壳聚糖、0.20%壳寡糖、1%水杨酸对青皮核桃进行浸泡处理,以蒸馏水浸泡作对照,在贮藏温度0~1℃,相对湿度90%~95%条件下进行贮藏,定期测定青皮核桃腐烂率、失重率,以及总酚、总黄酮、丙二醛的含量及POD活性。结果表明,0.20%壳寡糖和1%壳聚糖处理有效降低了青皮核桃的腐烂率及失重率,3种保鲜处理抑制了青皮核桃在贮藏期间MDA含量的积累,延缓总酚、总黄酮含量的下降,提高了POD活性。Using 1%chitosan,0.20%chitosan oligosaccharide,1%salicylate,the walnut was soaked in distilled water as control and stored under 0~1℃,Relative humidity was 90%~95%.The decay rate,weight loss rate,total phenol,total flavonoids,malondialdehyde content and POD activity were measured regularly.The results showed that the decay rate of 0.20%chitosan oligosaccharide treatment and 1%chitosan effectively reduced the decay rate and weight loss rate of green walnuts.The three fresh-keeping treatments inhibited the accumulation of MDA content in green walnuts during storage,and delayed the decrease of total phenols and total flavonoids,improved POD activity.

关 键 词：青皮核桃 贮藏品质 壳聚糖 壳寡糖 水杨酸 

分 类 号：TS255.6[轻工技术与工程—农产品加工及贮藏工程]