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Effect of Cold Plasma Treatment on the Softening of Winter Jujubes (Ziziphus jujuba Mill. cv. Dongzao)

文献类型： 外文期刊

作者： Jia, Sitong 1 ; Zhang, Na 2 ; Dong, Chenghu 2 ; Zheng, Pufan 2 ; Ji, Haipeng 2 ; Yu, Jinze 2 ; Yan, Shijie 1 ; Chen, Cunkun 2 ; Liang, Liya 3 ;

作者机构： 1.Tianjin Agr Univ, Coll Food Sci & Biol Engn, Tianjin 300384, Peoples R China

2.Tianjin Acad Agr Sci, Inst Agr Prod Preservat & Proc Technol, Natl Engn Technol Res Ctr Preservat Agr Prod, Key Lab Postharvest Physiol & Storage Agr Prod,Min, Tianjin 300384, Peoples R China

3.Tianjin Agr Univ, Coll Agron & Resources & Environm, Tianjin 300384, Peoples R China

关键词： cold plasma; winter jujubes (Ziziphus jujuba Mill. cv. Dongzao); softening; storage; cell wall-degrading enzymes

期刊名称：HORTICULTURAE （ 影响因子：3.1； 五年影响因子：3.4 ）

ISSN：

年卷期： 2023 年 9 卷 9 期

页码：

收录情况： SCI

摘要： Cold plasma (CP) is a green and efficient preservation technology, but its effect on preventing the postharvest softening of fruits and vegetables is still unclear, and the effects of different CP intensities on the postharvest softening of winter jujubes (Ziziphus jujuba Mill. cv. Dongzao) have been little studied. In this study, we investigated the effects of different CP intensities (0 kV, 40 kV, and 80 kV) on the postharvest storage quality of winter jujubes and the activities of key enzymes related to softening during storage. The results showed that compared with the control group, the contents of firmness, total soluble solids (TSS), titratable acidity (TA), and vitamin C (VC) in the CP treatment group were higher and the respiratory intensity and weight loss rate were lower. In addition, CP treatment can also inhibit the degradation of protopectin and cellulose and the accumulation of soluble pectin. Moreover, CP treatment inhibited the activities of polygalacturonase (PG), pectin methyl esterase (PME), 3 alpha-L-arabinoside (alpha-L-Af), 4 beta-galactosidase (beta-gal), cellulase (Cx), and beta-glucosidase (beta-Glu). This shows that CP treatment has a positive effect on the preservation of winter jujubes, and the preservation effect of the 80 kV treatment was better than that of the 40 kV treatment. This provides a certain basis for cold plasma treatment in the preservation of winter jujubes.

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