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The chemical composition and potential role of epicuticular and intracuticular wax in four cultivars of table grapes

文献类型： 外文期刊

作者： Yang, Mingyi 1 ; Luo, Zisheng 1 ; Gao, Sunan 1 ; Belwal, Tarun 1 ; Wang, Lei 1 ; Qi, Ming 1 ; Ban, Zhaojun 3 ; Wu, Bin 4 ; W 1 ;

作者机构： 1.Zhejiang Univ, Minist Agr & Rural Affairs, Key Lab Agroprod Postharvest Handling, Coll Biosyst Engn & Food Sci,Fuli Inst Food Sci, Hangzhou, Peoples R China

2.Zhejiang Univ, Natl Local Joint Engn Lab Intelligent Food Techno, Zhejiang Engn Lab Food Technol & Equipment, Zhejiang Key Lab Agrofood Proc, Hangzhou, Peoples R China

3.Zhejiang Univ Sci & Technol, Sch Biol & Chem Engn, Hangzhou 310013, Peoples R China

4.Xinjiang Acad Agr Sci, Inst Agroprod Storage & Proc, Urumqi 830091, Peoples R China

5.Chinese Acad Agr Sci, Key Lab Agroprod Qual & Safety Control Storag & T, Minist Agr & Rural Affffairs, Inst Food Sci & Technol, Beijing 100193, Peoples R China

关键词： Epicuticular wax; Grape berry; Composition; Morphology; GC-MS; SEM

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： 2021 年 173 卷

页码：

收录情况： SCI

摘要： Plant cuticular wax is the first barrier to resist biotic and abiotic stress. However, little is known about the compositional differences between the epicuticular and intracuticular wax in grape berry. The compositional, morphological and functional features of cuticular wax in grape berries of Vitis vinifera cv. 'Kyoho', 'Muscat Hamburg', 'Redglobe', and 'Zuijinxiang' were investigated. The total and epicuticular wax of four berries were mainly composed of terpenoids, hydrocarbons, alcohols, fatty acids and esters. Oleanolic acid was the most abundant terpenoid among the four cultivars. Scanning electron microscopy revealed the crystalline flakes structure of the cuticular wax. Additionally, the removal of epicuticular wax accelerated the weight loss, browning, and softening of grape berries, indicating the plastic-wrap-like effect of the cuticular wax on postharvest quality. This study provided the theoretical basis for further application of the fruit wax or waxy analogue.

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