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Photocatalytic titanium dioxide reduces postharvest decay of nectarine fruit packaged in different materials through modulating central carbon and energy metabolisms

文献类型： 外文期刊

作者： Zheng, Yanli 1 ; Duan, Lihua 1 ; Li, Jiangkuo 2 ; Zhang, Peng 2 ; Jiang, Yunbin 3 ; Yang, Xiangzheng 4 ; Li, Xihong 1 ; Jia, Xiaoyu 2 ;

作者机构： 1.Tianjin Univ Sci & Technol, Coll Food Sci & Engn, State Key Lab Food Nutr & Safety, Tianjin 300457, Peoples R China

2.Tianjin Acad Agr Sci, Inst Agr Prod Preservat & Proc Sci & Technol, Natl Engn & Technol Res Ctr Preservat Agr Prod Tia, Tianjin 300384, Peoples R China

3.Shanxi Fruit Ind Cold Chain New Mat Co Ltd, Tongchuan 727199, Peoples R China

4.Zhejiang Univ, Coll Agr & Biotechnol, Zijingang Campus, Hangzhou 310058, Peoples R China

5.All China Federat Supply & Mkt Cooperat, Jinan Fruit Res Inst, Jinan 250200, Peoples R China

6.Tianjin Acad Agr Sci, Inst Agr Prod Preservat & Proc Sci & Technol, Tianjin 300384, Peoples R China

关键词： TiO 2 photocatalysis; Microperforated LDPE packaging; Postharvest decay; Central carbon metabolism; Energy metabolism

期刊名称：FOOD CHEMISTRY （ 影响因子：8.8； 五年影响因子：8.6 ）

ISSN： 0308-8146

年卷期： 2024 年 433 卷

页码：

收录情况： SCI

摘要： The capacity of titanium dioxide (TiO2) photocatalysis photocatalytic reactor to prevent and control pathogen infection in nectarine fruit packed in laminated nylon/LDPE, low density polyethylene and microperforated LDPE films was evaluated. Results showed that TiO2 combined with microperforated LDPE packaging (TPL) exhibited superior inhibition of microbial growth, reducing total viable counts by 4.18 log CFU g-1 and yeast and mold counts by 3.20 log CFU g-1, compared to microperforated LDPE packaging alone. TiO2 photocatalysis primed the defense systems in nectarine fruit packed in microperforated LDPE, improving the activity of defenserelated enzymes. Metabolomics analysis indicated that L-aspartate, oxaloacetate, and succinic acid involved in central carbon metabolism including the glycolysis and tricarboxylic acid cycle pathways, were significantly upregulated by TPL. TiO2 increased the activity of energy metabolism-related enzymes, adenosine triphosphate, adenosine diphosphate, and energy charge levels to provide adequate energy, thus reducing fruit decay.

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