Synergistic effects of ultraviolet light irradiation and high-oxygen modified atmosphere packaging on physiological quality, microbial growth and lignification metabolism of fresh-cut carrots

文献类型： 外文期刊

第一作者： Li, Li

作者： Li, Li;Li, Changbao;Sun, Jian;Xin, Ming;Yi, Ping;He, Xuemei;Sheng, Jinfeng;Zhou, Zhugui;Ling, Dongning;Zheng, Fengjin;Li, Jiemin;Liu, Guoming;Li, Zhichun;Tang, Yayuan;Yang, Ying;Tang, Jie;Li, Li;Li, Changbao;Sun, Jian;Sheng, Jinfeng;Li, Jiemin

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关键词： Ultraviolet light C; High-oxygen modified atmosphere packaging; Fresh-cut carrots; Synergistic effects; Gene expressions

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： The present study investigated influences of ultraviolet light C (UV-C; 2 kJ m(-2)) irradiation and high-oxygen modified atmosphere packaging (MAP; 80 % O-2, 10 % CO2 and 10 % N-2) on physiological quality, microbial growth and lignification metabolism of fresh-cut carrots. After 15-d cold storage, comparing with either treatment alone, the combination of UV-C irradiation and high-oxygen MAP (abbr. UV-C + MAP) more obviously inhibited firmness, weight loss, ascorbic acid, total carotenoid and gamma-aminobutyric acid declines, reduced respiration and ethylene production rates as well as delayed bacterial growth. UV-C + MAP more strongly restrained whiteness index, total phenolic, lignin and malondialdehyde increases. Furthermore, UV-C + MAP treatment more efficiently retarded lignin synthesis by suppressing phenolic metabolism-related enzyme (phenylalanine ammonialyase, PAL; polyphenoloxidase, PPO; peroxidase, POD) activities and their gene (DcPAL; DcPPO; DcPOD) expressions. Above results indicated that UV-C + MAP exhibited synergistic effects in retaining physiological quality, delayed senescence process, reducing microbial growth, alleviating lignification degree, and lessened surface whitening. Therefore, UV-C + MAP could maintain overall quality and extend shelf-life during storage of fresh-cut carrots.

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