文章基本信息

标题：Analysis of the Fruit Quality of Pear ( Pyrus spp.) Using Widely Targeted Metabolomics
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作者：Pufan Zheng ; Mei Zhang ; Xin Fang 等
期刊名称：Foods
电子版ISSN：2304-8158
出版年度：2022
卷号：11
期号：10
DOI：10.3390/foods11101440
语种：English
出版社：MDPI Publishing
摘要：Pear is a kind of common temperate fruit, whose metabolite composition that contributes to the difference in fruit quality is unclear. This study identified and quantified the metabolites using a widely targeted LC-MS/MS approach in three pear species, including Pyrus bretschneideri (PB), Pyrus usssuriensis (PU) and Pyrus pyrifolia (PP). A total of 493 metabolites were identified, consisting of 68 carbohydrates, 47 organic acids, 50 polyphenols, 21 amino acids, 20 vitamins, etc. The results of PCA and OPLS-DA demonstrated that the metabolite compositions differed distinctly with cultivar variability. Our results also involved some metabolic pathways that may link to the fruit quality based on KEGG pathway analysis, the pathway of phenylalanine metabolism revealed significant differences between PB and PP ( p < 0.05). Furthermore, the study selected D-xylose, formononetin, procyanidin A1 and β-nicotinamide mononucleotide as the major differentially expressed metabolites in the three species. The present study can open new avenues for explaining the differences in fruit quality of the major commercial pear cultivars in China.
关键词：enPyrusLC-MSmetabolomicscarbohydratepolyphenol