Open AccessLiquid Fermentation of Ganoderma applanatum and Antioxidant Activity of Exopolysaccharides
Author(s) -
LIU Zhong-hua,
HOU Xiao-ge,
Jimin Zhao,
HE Le
Publication year - 2015
Publication title -
the open biomedical engineering journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.15
H-Index - 22
ISSN - 1874-1207
DOI - 10.2174/1874120701509010190
Subject(s) - fermentation , antioxidant , food science , strain (injury) , liquid medium , chemistry , carbon source , botany , biochemistry , biology , chromatography , anatomy
The medium composition and fermentation conditions of Ganoderma applanatum(GA) strain were optimized by the liquid shake flask fermentation, and the antioxidant activity of exopolysaccharides was investigated. The results showed that the optimal conditions of the liquid fermentation of GA strain were as follows: Carbon source was corn powder, nitrogen source was soy powder, the initial pH was 6.0, the inoculum size was 8, the fermentation temperature was 32oC, the fermentation time was 7 d. The exopolysaccharides of GA strain could scavenge hydroxyl radicals(HR) and superoxide anion radicals(SAR), and the concentration of exopolysaccharides was positively related to the antioxidant activity.