Germplasm-specific phenolic signatures in pear leaves: Comparative variation profiling via UPLC-MS/MS
文献类型： 外文期刊
作者： Huo, Hongliang 1 ; Li, Jing 1 ; Ye, Zimao 2 ; Tian, Luming 1 ; Dong, Xingguang 1 ; Xu, Jiayu 1 ; Zhang, Ying 1 ; Qi, Dan 1 ; Liu, Chao 1 ; Zhou, Zhiqin 2 ; Cao, Yufen 1 ;
作者机构： 1.Chinese Acad Agr Sci, Res Inst Pomol, Xingcheng 125100, Liaoning, Peoples R China
2.Southwest Univ, Coll Hort & Landscape Architecture, Chongqing 400716, Peoples R China
关键词： Pyrus L.; Phenolics profile; Spatial heterogeneity; Arbutin; Superior germplasm; UPLC-MS/MS
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 493 卷
页码：
收录情况： SCI
摘要： Pear (Pyrus L.) is abundant in phenolic compounds which significantly contribute to functional properties. This study analyzed the phenolic profiles in the leaves of 460 pears using UPLC-MS/MS. A total of 28 phenolic compounds were identified, including one hydroxyphenyl-glucopyranoside, two hydroxycinnamates, five flavanols, four flavonoids, and sixteen flavonols, displaying pronounced species-specific and spatial variation. Arbutin emerged as the predominant phenolic component, accounting for 60.36 % of total phenolics, but was significantly less abundant in P. calleryana compared to others. European pears were richer in rutin, while Asian pears had higher concentrations of luteolin 7-O-glucoside. Chlorogenic acid levels showed a positive correlation with the varietal-origin altitude, while luteolin 7-O-glucoside and chrysoeriol 7-O-glucoside were negatively correlated with latitude. Varieties BT, YBMY, and XH_js003 exhibited high phenolic diversity, whereas JT41H, CPS, and ZYX possessed high arbutin. This study provides a comprehensive profile of pear phenolics, thereby enhancing their utilization in bioactives and understanding of adaptations.
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