Elevated O2 alleviated anaerobic metabolism in postharvest winter jujube fruit by regulating pyruvic acid and energy metabolism
文献类型： 外文期刊
作者： Li, Dong 2 ; Li, Li 2 ; Li, Wenxuan 2 ; Xu, Yanqun 2 ; Han, Xueyuan 4 ; Bao, Nina 1 ; Sheng, Zhanwu 5 ; Yuan, Yaya 6 ; Zhang, Xingtao 1 ; Luo, Zisheng 2 ;
作者机构： 1.Suzhou Univ, Sch Biol & Food Engn, Suzhou 234000, Peoples R China
2.Zhejiang Univ, Coll Biosyst Engn & Food Sci, Key Lab Agroprod Postharvest Handling Minist Agr &, Hangzhou 310058, Peoples R China
3.Zhejiang Univ, Ningbo Innovat Ctr, Ningbo 315100, Peoples R China
4.Shaoxing Univ, Sch Life & Environm Sci, Shaoxing 311800, Peoples R China
5.Chinese Acad Trop Agr Sci, Haikou Expt Stn, Haikou 570101, Peoples R China
6.Zhejiang Business Technol Inst, Ningbo 315000, Peoples R China
7.Zhejiang Univ, Coll Biosyst Engn & Food Sci, Hangzhou 310058, Peoples R China
关键词： Elevated O 2; Winter jujube fruit; Ethanol and acetaldehyde; Pyruvic acid metabolism; Energy metabolism
期刊名称：POSTHARVEST BIOLOGY AND TECHNOLOGY （ 影响因子：7.0； 五年影响因子：6.9 ）
ISSN： 0925-5214
年卷期： 2023 年 203 卷
页码：
收录情况： SCI
摘要： Over-accumulation of anaerobic metabolites is a typical characteristic of postharvest senescence in winter jujube fruit. Here, elevated O2 was applied during cold storage to investigate its regulation on anaerobic respiration. The results found 60 % O2 was the optimal concentration to inhibit anaerobic respiration, which showed 83.82 % lower acetaldehyde and 57.13 % lower ethanol compared with control. Elevated O2 maintained energy status by activating succinate dehydrogenase and cytochrome C oxidase, with 1.11-fold higher energy charge observed as compared with the control. In addition, activated aerobic respiration also accelerated the consumption of pyruvic acid, and pyruvic acid content was reduced by 63 % in elevated O2-treated fruit. Sufficient energy supply and reduced pyruvic acid content in elevated O2-treated fruit induced the alleviation of anaerobic respiration, leading to attenuating the accumulation of ethanol and acetaldehyde as a result. The study proved elevated O2 repressed anaerobic metabolism by regulating pyruvic acid level and energy metabolism.
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