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

Yanli Zheng; Lihua Duan; Jiangkuo Li; Peng Zhang; Yunbin Jiang; Xiangzheng Yang; Xihong Li; Xiaoyu Jia

doi:10.1016/j.foodchem.2023.137357

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

Food Chem. 2024 Feb 1:433:137357. doi: 10.1016/j.foodchem.2023.137357. Epub 2023 Sep 3.

Authors

Yanli Zheng¹, Lihua Duan¹, Jiangkuo Li², Peng Zhang², Yunbin Jiang³, Xiangzheng Yang⁴, Xihong Li¹, Xiaoyu Jia⁵

Affiliations

¹ State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China.
² Institute of Agricultural Products Preservation and Processing Science and Technology, Tianjin Academy of Agricultural Sciences, National Engineering and Technology Research Center for Preservation of Agricultural Products (Tianjin), Tianjin 300384, China.
³ Shanxi Fruit Industry Cold Chain New Material Co., Ltd, Tongchuan 727199, China. Electronic address: yunbinjiang@126.com.
⁴ College of Agriculture & Biotechnology, Zijingang Campus, Zhejiang University, Hangzhou 310058, China; Jinan Fruit Research Institute, All China Federation of Supply and Marketing Cooperatives, Jinan 250200, China. Electronic address: yangxiangzheng318@163.com.
⁵ Institute of Agricultural Products Preservation and Processing Science and Technology, Tianjin Academy of Agricultural Sciences, National Engineering and Technology Research Center for Preservation of Agricultural Products (Tianjin), Tianjin 300384, China; Shanxi Fruit Industry Cold Chain New Material Co., Ltd, Tongchuan 727199, China. Electronic address: jiaxiaoyu331@outlook.com.

PMID: 37688821
DOI: 10.1016/j.foodchem.2023.137357

Abstract

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 defense-related 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.

Keywords: Central carbon metabolism; Energy metabolism; Microperforated LDPE packaging; Postharvest decay; TiO(2) photocatalysis.