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author:

Lan, Maojin (Lan, Maojin.) [1] | Weng, Mingfeng (Weng, Mingfeng.) [2] | Lin, Zhenyu (Lin, Zhenyu.) [3] | Wang, Jian (Wang, Jian.) [4] | Zhao, Feng (Zhao, Feng.) [5] | Qiu, Bin (Qiu, Bin.) [6]

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EI

Abstract:

Abuse of antibiotics makes antibiotic-resistance become a huge challenge in bacterial infection treatment. The discovery of new antibiotics is of great significance to human health. In this study, the antibacterial mechanism of Sparassis crispa polysaccharides (SCPs) was explored. The SCPs isolated from Sparassis crispa was composed of fucose, glucose and galactose with a molar ratio of 0.043 : 0.652: 0.305. Bacteriostatic tests showed SCPs inhibited the growth of Staphylococcus aureus better than Escherichia coli's, and damage to bacteria was observed under scanning electron microscopy. Metabolomic analysis based on HPLC-Q-TOF/MS indicated that SCPs disrupted metabolism of the glycolysis and tricarboxylic acid cycle pathways in S. aureus. The variations of fructose-1,6-diphosphate, 1,3-diphosphoglycerol, succinate and oxaloacetate were significant, whose systematic changes accompanied with decrease of ATP in cells indicated that SCPs could exert antibacterial effects by inducing dysfunction of catabolism and energy metabolism. Our research confirmed the antibacterial properties of SCPs and provided a perspective for understanding antibacterial mechanism of polysaccharides from natural products through metabolomics technology. © 2021

Keyword:

Antibiotics Escherichia coli Metabolism Molar ratio Polysaccharides Scanning electron microscopy

Community:

  • [ 1 ] [Lan, Maojin]Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety, Eel Farming and Processing, Fuzhou University, Fuzhou; Fujian; 350108, China
  • [ 2 ] [Weng, Mingfeng]Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety, Eel Farming and Processing, Fuzhou University, Fuzhou; Fujian; 350108, China
  • [ 3 ] [Lin, Zhenyu]Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety, Eel Farming and Processing, Fuzhou University, Fuzhou; Fujian; 350108, China
  • [ 4 ] [Wang, Jian]Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety, Eel Farming and Processing, Fuzhou University, Fuzhou; Fujian; 350108, China
  • [ 5 ] [Zhao, Feng]College of Pharmacy, Fujian University of Traditional Chinese Medicine, Fuzhou; Fujian; 350002, China
  • [ 6 ] [Qiu, Bin]Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety, Eel Farming and Processing, Fuzhou University, Fuzhou; Fujian; 350108, China

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Source :

Carbohydrate Research

ISSN: 0008-6215

Year: 2021

Volume: 503

2 . 9 7 5

JCR@2021

2 . 4 0 0

JCR@2023

ESI HC Threshold:117

JCR Journal Grade:2

CAS Journal Grade:4

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 13

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 6

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