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.
作者
张欢欢
刘佳
李亚玲
杨莉玲
孙俪娜
祝兆帅
崔宽波
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)
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)。
关键词
青皮核桃
贮藏品质
壳聚糖
壳寡糖
水杨酸
fresh walnuts
postharvest storage quality
chitosan
chitosan oligosaccharides
salicylic acid
