文献类型： 外文期刊
作者： Zhang, Bo 1 ; Zhang, Xiaoping 1 ; Yan, Lijuan 2 ; Kang, Zongjing 1 ; Tan, Hao 1 ; Jia, Dinghong 1 ; Yang, Lufang 1 ; Ye, 1 ;
作者机构： 1.Sichuan Acad Agr Sci, Soil & Fertilizer Inst, Chengdu 610066, Peoples R China
2.Friedrich Schiller Univ Jena, Inst Biodivers, Chair Aquat Geomicrobiol, Dornburger Str 159, D-07743 Jena, Germany
3.Sichuan Agr Univ, Coll Resources, Dept Microbiol, Chengdu 611130, Peoples R China
关键词： Proteomic; Metabolomics; Tuber indicum; Maturity; Meta-proteomic approach; Nutritional value
期刊名称：FOOD CHEMISTRY （ 影响因子：7.514； 五年影响因子：7.516 ）
ISSN： 0308-8146
年卷期： 2021 年 342 卷
页码：
收录情况： SCI
摘要： Chinese black truffle (Tuber indicum) is rich in nutrition. However, commercial interests lead to the aroma components and nutrients of T. indicum being greatly affected by overexploitation without consideration of their maturity. This study investigated the proteomic and metabolomic profiles of truffle fruiting bodies at different maturities using a meta-proteomic approach. Among the 3007 identified proteins, the most up-expressed protein in the mature ascocarps was involved in the peptidyl-diphthamide biosynthetic process, while thiamine metabolism was the most differentially expressed pathway. Furthermore, a total of 54 metabolites identified upon LC MS differed significantly, with 30 being up-expressed in the mature ascocarps, including organic acids, carnitine substances and polysaccharides. Additionally, the ash, protein, fat, crude fiber and total sugar contents were all higher in the mature ascocarps. Overall, our findings reveal that mature truffles have a higher nutritional value, providing a basis for further exploring protein functionality of T. indicum at different maturities.
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