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A comparative UPLC-Q-TOF/MS-based metabolomics approach for distinguishing peach (Prunus persica (L.) Batsch) fruit cultivars with varying antioxidant activity

文献类型： 外文期刊

作者： Zhang, Xianan 1 ; Li, Xin 3 ; Su, Mingshen 1 ; Du, Jihong 1 ; Zhou, Huijuan 1 ; Li, Xiongwei 1 ; Ye, Zhengwen 1 ;

作者机构： 1.Shanghai Acad Agr Sci, Forestry & Fruit Res Inst, Shanghai 201403, Peoples R China

2.Shanghai Key Lab Protected Hort Technol, Shanghai 201403, Peoples R China

3.Shanghai Jiao Tong Univ, Instrumental Anal Ctr, Shanghai 200240, Peoples R China

关键词： Prunus persica pulp; Non-targeted metabolic profiling; Antioxidant activity; Chemometrics; Chemical markers; Fruit quality

期刊名称：FOOD RESEARCH INTERNATIONAL （ 影响因子：6.475； 五年影响因子：6.508 ）

ISSN： 0963-9969

年卷期： 2020 年 137 卷

页码：

收录情况： SCI

摘要： Peaches (Prunus persica (L.) Batsch) are nutritionally and economically important and they are one of the most popular fruits consumed worldwide. Understanding metabolite-caused bioactivity differences among cultivars is essential for designing a peach with enhanced nutritional traits. In this study, we report an untargeted UPLC-QTOF/MS-based metabolomics approach for comprehensively discriminating between peaches with different antioxidant activities. Mature fruit from 40 peach cultivars were distinguished using principal component analysis and orthogonal partial least squares discrimination analysis. Seventeen differential metabolites were tentatively identified between peach cultivars with high and low antioxidant potency composite indices, and eight metabolites, including procyanidin C1, procyanidin trimer isomer 1, procyanidin trimer isomer 2, procyanidin B1, procyanidin B2, procyanidin B3, prunus inhibitor b, and phloridzin, were identified as marker compounds responsible for the discrimination of the cultivars base on potential antioxidant activity. Our study highlights the essence and predictive power of metabolomics for detecting small differences and for identifying potential marker metabolites based on their levels and composition in plants exhibiting varying bioactivities. Overall, the variations in the metabolites in peach pulp reflected the diversity in the peach germplasm, and these eight compounds are good candidate markers for future genetic breeding of peach fruit with enhanced antioxidant activity.

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