Comparative volatile compounds and primary metabolites profiling of pitaya fruit peel after ozone treatment
文献类型： 外文期刊
作者： Wu, Qixian 1 ; Zhang, Zhengke 1 ; Zhu, Hong 1 ; Li, Taotao 1 ; Zhu, Xiangrong 1 ; Gao, Huijun 4 ; Yun, Ze 1 ; Jiang, Yuem 1 ;
作者机构： 1.Chinese Acad Sci, Guangdong Prov Key Lab Appl Bot, South China Bot Garden, 723 Xingke Rd, Guangzhou, Guangdong, Peoples R China
2.Univ Chinese Acad Sci, 19 A Yuquan Rd, Beijing, Peoples R China
3.Hainan Univ, Coll Food Sci & Technol, 58 Haidiandao Renmin St, Haikou, Hainan, Peoples R China
4.Guangdong Acad Agr Sci, Inst Fruit Tree Res, 80 Dafeng Two St, Guangzhou, Guangdong, Peoples R China
关键词： delayed fruit decay; ozone; pitaya fruit; primary metabolites; prolonged shelf-life; volatile compounds
期刊名称：JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE （ 影响因子：3.638； 五年影响因子：3.802 ）
ISSN： 0022-5142
年卷期： 2019 年 99 卷 5 期
页码：
收录情况： SCI
摘要： BACKGROUND Ozone treatment can effectively inhibit fruit decay in many fruits during postharvest storage. However, little information is available for pitaya fruit. RESULTS Ozone treatment significantly reduced the decay rate and induced the enzyme activities of peroxidase and polyphenol oxidase, and also reduced the levels of reactive oxygen species. In total, 103 metabolites were detected and changed the content after ozone treatment, including 54 primary metabolites and 49 aromatic compounds. After significance and importance analysis, 37 metabolites were important. Some metabolites were induced by peel senescence to respond to senescence stress, including d-fructose, d-glucose, mannose, inositol, galactonic acid, ethanedioic acid and stearic acid. Some metabolic products of peel senescence were reduced by ozone treatment, including d-arabinose, glucaric acid, galacturonic acid, 1-hexanol, 4-ethylcyclohexanol, beta-linalool, palmitoleic acid and 2-hydroxy-cyclopentadecanone. Some metabolites induced by ozone treatment might play a vital role in delaying the senescence and decay, including malic acid, succinic acid, pentenoic acid, eicosanoic acid, 2-hexenal, hexanal, 2-heptenal, 4-heptenal, 2-octenal and nitro m-xylene. CONCLUSION Ozone treatment significantly reduced decay and prolonged shelf-life without reducing fruit quality. In total, 37 metabolites might play an important role in ozone delayed fruit decay. (c) 2018 Society of Chemical Industry
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