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LC/MS- and GC/MS-based metabolomic profiling to determine changes in flavor quality and bioactive components of Phlebopus portentosus under low-temperature storage

文献类型： 外文期刊

作者： Li, Xiao-Bei 1 ; Hu, Chen-Menghui 1 ; Li, Cai-Hong 1 ; Ji, Guang-Yan 2 ; Luo, Shun-Zhen 2 ; Cao, Yang 2 ; Ji, Kai-Ping 2 ; Tan, Qi 1 ; Bao, Da-Peng 1 ; Shang, Jun-Jun 1 ; Yang, Rui-Heng 1 ;

作者机构： 1.Shanghai Acad Agr Sci, Shanghai, Peoples R China

2.Hongzhen Agr Sci & Technol Co Ltd, Jinghong, Peoples R China

关键词： LC; MS; GC; Phlebopus portentosus; nutritional changes; geosmin

期刊名称：FRONTIERS IN NUTRITION （ 影响因子：5.0； 五年影响因子：5.7 ）

ISSN： 2296-861X

年卷期： 2023 年 10 卷

页码：

收录情况： SCI

摘要： IntroductionLow temperature is the most common method used to maintain the freshness of Phlebopus portentosus during long-distance transportation. However, there is no information regarding the nutritional changes that occur in P. portentosus preserved postharvest in low temperature. MethodsIn this study, the changes in flavor quality and bioactive components in fruiting bodies stored at 4 & DEG;C for different storage periods were determined through LC/MS and GC/MS analyses. Sampling was performed at 0, 3, 5, 7, and 13 days storage. Results and DiscussionBased on the results, the metabolites present in caps and stipes were different at the same period and significantly different after 7 days of storage. A total of 583 and 500 different metabolites were detected in caps and stipes, respectively, and were mainly lipids and lipid-like molecules, organic acids and derivatives, organic oxygen compounds and others. Except for prenol lipids and nucleotides, the expression levels of most metabolites increased with longer storage time. In addition, geosmin was identified as the major contributor to earthy-musty odors, and the level of geosmin was increased when the storage time was short. ConclusionThe variations in these metabolites might cause changes in flavor quality and bioactive components in P. portentosus. Variations in these metabolites were thoroughly analyzed, and the results revealed how storage processes affect the postharvest quality of P. portentosus for the first time.

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