Acta Agriculturae Zhejiangensis ›› 2022, Vol. 34 ›› Issue (5): 949-958.DOI: 10.3969/j.issn.1004-1524.2022.05.09

• Animal Science • Previous Articles     Next Articles

Extraction and identification of α-glucosidase-inhibitory components from Phellinus baumii

ZHENG Meiyu1(), WANG Lu1,2, LIU Zhe1, ZHANG Wenjuan1,2, GAO Pu1,3, LU Shengmin1,*()   

  1. 1. Key Laboratory of Fruit and Vegetables Postharvest and Processing Technology Research of Zhejiang Province, Key Laboratory of Postharvest Handling of Fruits, Ministry of Agriculture and Rural Affairs, Institute of Food Science, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
    2. College of Food and Pharmaceutical Sciences, Zhejiang Ocean University, Zhoushan 316022, Zhejiang, China
    3. College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
  • Received:2021-01-06 Online:2022-05-25 Published:2022-06-06
  • Contact: LU Shengmin

Abstract:

To screen and extract the α-glucosidase-inhibitory components in Phellinus baumii,and to identify the constituents in the extracts, the four technological parameters were optimized by α-glucosidase-inhibitory rate and total flavonoid content, and the constituents were identified by UHPLC-Q-Exactive Orbitrap MS. The extracts by 60% ethanol exhibited significant inhibitory activity. The optimized extraction by orthogonal test were achieved using 60% of ethanol volume fraction at 80 ℃ for 3 h with a solid-to-liquid ratio of 1:30 for two times, whose flavonoid extraction ratio reached 159.3 mg·g-1. Forty five components were identified by LC-MS, among which phenolic substances were in the majority. The extracts with high flavonoids content and high α-glucosidase-inhibitory activity was obtained by optimized technology, containing abundant polyphenols.

Key words: Phellinus baumii, α-glucosidase, extract, component identification

CLC Number: