Metabolic Profiling and Potential Taste Biomarkers of Two Rambutans during Maturation

文献类型： 外文期刊

第一作者： Deng, Hao

作者： Deng, Hao;Wu, Guang;Guo, Li;Zhou, Liying;Xu, Bin;Deng, Hao;Wu, Guang;Deng, Hao;Wu, Guang;Hu, Fuchu;Chen, Zhe;Hu, Fuchu;Chen, Zhe;Yin, Qingchun

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关键词： rambutan; sugar; acid; biomarker; widely targeted metabolomics; maturation

期刊名称：MOLECULES （ 影响因子：4.6； 五年影响因子：4.9 ）

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年卷期： 2023 年 28 卷 3 期

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收录情况： SCI

摘要： The metabolite-caused taste variation during rambutan maturation is unknown due to a lack of systematic investigation of all components. In this study, three growing stages, including unripe (S1), half-ripe (S2), and full-ripe (S3) BY2 and BY7 rambutans were compared and profiled by UPLC-MS/MS-based widely targeted metabolomics analysis. We demonstrated that the sugar-acid ratios of two rambutans were greatly improved between the S2 and S3 stages. A total of 821 metabolites were identified, including 232, 205, 204, and 12 differential metabolites (DMs) in BY2-S1 vs. BY2-S2, BY2-S2 vs. BY2-S3, BY7-S1 vs. BY7-S2, and BY7-S2 vs. BY7-S3, respectively. A correlation analysis showed that gamma-aminobutyric acid (GABA) could be the sugar-acid ratio biomarker of BY2 rambutan. Methionine (Met), alanine (Ala), and S-methyl-L-cysteine (SMC) could be total amino acid biomarkers of BY2 and BY7 rambutans. In addition, UPLC-MS/MS-based quantitative verification of the above biomarkers exhibited the same variations as metabolomics analysis. This study not only provides useful nutritive information on rambutans but also valuable metabolic data for rambutan breeding strategies.

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