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Biochemical Properties of Fruiting Roots of Flammulina velutipes Strain Jiangshanbai F21

CHENG Xiaohua1, WANG Ying2, QI Qinqin2, WANG Yani2, LAI Tongfei2, ZHOU Ting2,*   

  1. 1. School of Tourism and Culinary Arts, Zhejiang Business College, Hangzhou 310053, China; 2. Hangzhou Key Laboratory for Safety of Agricultural Products, College of Life and Environmental Science, Hangzhou Normal University, Hangzhou 310036, China
  • Online:2016-09-15 Published:2016-09-22

Abstract:

The biochemical properties of fruiting roots of Flammulina velutipes strain Jiangshanbai F21 were evaluated
through analysis of metal contents, amino acid composition, differentially expressed proteins and antioxidant enzyme
activities in this study. The results showed that fruiting roots contained less crude fats, iron, phosphorus, the essential amino
acids leucine and lysine, but contained more ash content, arsenic, calcium and magnesium when compared with fruiting
bodies. Using comparative proteomics, 9 differentially expressed proteins were identified which participated in multiple
biological processes including two-component signal transduction system, acetyl-CoA metabolism, protein synthesis,
glyoxylate and dicarboxylate metabolism, and nitrogen metabolism. Meanwhile, the content of TEER-decreasing protein
in fruiting roots was significantly lower than in fruiting bodies. Furthermore, antioxidant enzyme activities in fruiting roots
were lower than those in fruiting bodies within the shelf-life period.

Key words: Flammulina velutipes strain Jiangshanbai F21, fruiting root, amino acid composition, comparative proteomics, antioxidant enzyme activities

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