Comparative profiling of primary metabolites and volatile compounds in Satsuma mandarin peel after ozone treatment
文献类型： 外文期刊
作者： Wu, Qixian 1 ; Zhu, Xiangrong 1 ; Gao, Huijun 2 ; Zhang, Zhengke 1 ; Zhu, Hong 1 ; Duan, Xuewu 1 ; Qu, Hongxia 1 ; Yun, Z 1 ;
作者机构： 1.Chinese Acad Sci, Guangdong Prov Key Lab Appl Bot, South China Bot Garden, Guangzhou, Guangdong, Peoples R China
2.Guangdong Acad Agr Sci, Inst Fruit Tree Res, Guangzhou, Guangdong, Peoples R China
3.Univ Chinese Acad Sci, Beijing, Peoples R China
4.Hainan Univ, Coll Food Sci & Technol Haikou, Haikou, Hainan, Peoples R China
关键词： Citrus fruit; Fruit decay; Ozone treatment; Primary metabolites; Volatile compounds
期刊名称：POSTHARVEST BIOLOGY AND TECHNOLOGY （ 影响因子：5.537； 五年影响因子：5.821 ）
ISSN： 0925-5214
年卷期： 2019 年 153 卷
页码：
收录情况： SCI
摘要： Ozone treatment can effectively delay the decay of many fruit during postharvest storage. However, little is known about the ozone-induced metabolites. In this study, Satsuma mandarin fruit were treated with 2 mu g L-1 ozone gas for 5 h. Results showed that ozone treatment not only effectively delayed the fruit decay, but also significantly reduced fruit respiratory intensity, delayed fruit degreening and prolonged shelf-life of Satsuma mandarin fruit during postharvest storage. After gas chromatography coupled to mass spectrometry (GC-MS) analysis, a total of 96 metabolites were detected in Satsuma mandarin peel (albedo + flavedo), including 55 primary metabolites and 41 volatile compounds. After ozone treatment, the contents of many metabolites increased significantly at 1 d, mainly including soluble sugars and organic acids, which might play a regulatory role in ozone-induced fruit resistance. Moreover, a great number of metabolites related to antioxidant and antibacterial activity were also induced at 4 d by ozone treatment, which might effectively improve the disease resistance, delay the decay, and prolong the shelf life of Satsuma mandarin fruit.
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