Elucidating Softening Mechanism of Honey Peach (Prunus persica L.) Stored at Ambient Temperature Using Untargeted Metabolomics Based on Liquid Chromatography-Mass Spectrometry
文献类型： 外文期刊
作者： Kong, Xiaoxue 1 ; Luo, Haibo 2 ; Chen, Yanan 2 ; Shen, Hui 1 ; Shi, Pingping 1 ; Yang, Fang 1 ; Li, Hong 3 ; Yu, Lijuan 1 ;
作者机构： 1.Yunnan Acad Agr Sci, Agroprod Proc Res Inst, Kunming 650221, Peoples R China
2.Nanjing Normal Univ, Sch Food Sci & Pharmaceut Engn, Nanjing 210023, Peoples R China
3.Yunnan Agr Univ, Coll Food Sci & Technol, Kunming 650201, Peoples R China
关键词： honey peach; softening; untargeted metabolomics; LC-MS; metabolites
期刊名称：HORTICULTURAE （ 影响因子：3.1； 五年影响因子：3.4 ）
ISSN：
年卷期： 2023 年 9 卷 11 期
页码：
收录情况： SCI
摘要： Peach fruit softening is the result of a series of complex physiological and biochemical reactions that influence shelf life and consumer acceptance; however, the precise mechanisms underlying softening remain unclear. We conducted a metabolomic study of the flesh and peel of the honey peach (Prunus persica L.) to identify critical metabolites before and after fruit softening. Compared to the pre-softening profiles, 155 peel metabolites and 91 flesh metabolites exhibited significant changes after softening (|log(2)(FC)| > 1; p < 0.05). These metabolites were mainly associated with carbohydrate metabolism, respiratory chain and energy metabolism (citrate cycle, pantothenate and CoA biosynthesis, nicotinate and nicotinamide metabolism, and pentose and glucuronate interconversions), reactive oxygen species (ROS) metabolism, amino acid metabolism, and pyrimidine metabolism. During peach fruit softening, energy supply, carbohydrate and amino acid metabolism, oxidative damage, and plant hormone metabolism were enhanced, whereas amino acid biosynthesis and cell growth declined. These findings contribute to our understanding of the complex mechanisms of postharvest fruit softening, and may assist breeding programs in improving peach fruit quality during storage.
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