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Combination of Low Fluctuation of Temperature with TiO2 Photocatalytic/Ozone for the Quality Maintenance of Postharvest Peach

文献类型: 外文期刊

作者: Jia, Xiaoyu 1 ; Li, Jiangkuo 2 ; Du, Meijun 1 ; Zhao, Zhiyong 3 ; Song, Jianxin 1 ; Yang, Weiqiao 4 ; Zheng, Yanli 1 ; Ch 1 ;

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.Natl Engn & Technol Res Ctr Preservat Agr Prod, Tianjin Key Lab Postharvest Physiol & Storage Agr, Tianjin 300384, Peoples R China

3.Xinjiang Acad Agr & Reclamat Sci, Inst Agroprod Proc Sci & Technol, Shihezi 832000, Peoples R China

4.Acad Natl Food & Strateg Reserves Adm, Beijing 100037, Peoples R China

5.Tianjin Gasin DH Preservat Technol Co Ltd, Tianjin 300403, Peoples R China

关键词: peach; chilling injury; internal circulation system; low fluctuation of temperature; TiO2 photocatalytic; storage quality

期刊名称:FOODS ( 影响因子:4.35; 五年影响因子:4.957 )

ISSN:

年卷期: 2020 年 9 卷 2 期

页码:

收录情况: SCI

摘要: Chilling injury, tissue browning, and fungal infection are the major problems of peach fruit during post-harvest storage. In this study, a precise temperature control cold storage with low-temperature fluctuation (LFT) and internal circulation flow system is designed. An ozone (O-3) generator and a (titanium dioxide) TiO2 photocatalytic reactor were applied to cold storage to investigate the variation of LFT combined with ozone fumigation and a TiO2 photocatalytic reactor in the efficiency of delaying ripening and maintaining peach fruit quality. Results showed that the temperature fluctuation with the improved control system was only +/- 0.1 to +/- 0.2 degrees C compared with that of +/- 0.5 to +/- 1.0 degrees C in conventional cold storage. LFT significantly reduced the chilling injury of peach fruit during storage. Although LFT combined with fumigation of 200 mg m(-3) ozone periodical treatment slightly damaged the peach fruit after 40 d of storage, its combination with the TiO2 photocatalytic system significantly improved the postharvest storage quality of the fruit. This treatment maintained higher titratable acidity (TA), total soluble solids (TSS), better firmness, color, microstructure, and lower decay rate, polyphenol oxidase (PPO) activities, total phenol accumulation, respiratory intensity, ethylene production, and malondialdehyde (MDA) content during 60 d of storage. All the results show that LFT combined with the TiO2 photocatalytic system might be a promising technology for quality preservation in peach fruit storage.

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