Postharvest ripening-induced modification of cell wall polysaccharide affects plum phenolic bioavailability
文献类型： 外文期刊
作者： Niu, Xiao-Xiao 1 ; Tao, Yang 3 ; Wang, Qing-Hui 2 ; Xu, Ming-Qiang 4 ; Zhang, Feng-Lun 5 ; Xie, Yong-Kang 6 ; Xiao, Hong-Wei 1 ;
作者机构： 1.China Agr Univ, Coll Engn, POB 194,17 Qinghua Donglu, Beijing 100083, Peoples R China
2.Xinjiang Acad Agr Sci, Agr Mechanizat Inst, Urumqi 830091, Xinjiang, Peoples R China
3.Nanjing Agr Univ, Coll Food Sci & Technol, Nanjing 210095, Peoples R China
4.Xinjiang Acad Agr Sci, Inst Agroprod Storage & Proc, Urumqi, Xinjiang, Peoples R China
5.Nanjing Inst Comprehens Utilizat Wild Plants, Nanjing 210042, Peoples R China
6.Henan Acad Agr Sci, Res Ctr Agr & Sideline Prod Proc, Zhengzhou 450002, Peoples R China
关键词： Postharvest maturity; Monosaccharide composition; Nanostructure; Cell wall polysaccharide; Confocal laser scanning microscopy; In vitro gastrointestinal digestion experiment
期刊名称：FOOD CHEMISTRY （ 影响因子：9.8； 五年影响因子：9.7 ）
ISSN： 0308-8146
年卷期： 2025 年 479 卷
页码：
收录情况： SCI
摘要： The mechanisms by which cell wall polysaccharides regulate phenolic release are essential to human health. Scanning electron microscopy (SEM), surface area and porosimetry analyzer, high-performance liquid chromatography (HPLC), and atomic force microscopy (AFM) indicated that compared to fresh plums, postharvest ripening reduced chain linearity in the homogalacturonan region of pectins and the degree of branching of RG-I; pectin and hemicellulose underwent solubilization and depolymerization by cell wall-degrading enzymes; and the specific surface area of cellulose was reduced by 19.5 %-26.8 %, with aggregation of cellulose occurring. In addition, confocal laser scanning microscopy (CLSM), polyphenol adsorption experiments, and in vitro gastrointestinal digestion experiments showed that the cell wall modifications under postharvest ripening process induced phenolics release and increased the bioaccessibility of plums: compared to the fresh plums, the equilibrium adsorption capacity of the cell wall of late postharvest ripened plums was reduced by 42.6 % (for epicatechin) and 27.4 % (for chlorogenic acid), and the bioaccessibility index of postharvest plum phenolics was increased by 11.2 %-23.9 %. These findings indicate cell wall modification under postharvest ripening process induces phenolic release and improves plum phenolic bioavailability.
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