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Liquid Fermentation of Ganoderma applanatum and Antioxidant Activity of Exopolysaccharides

机译:灵芝的液体发酵及胞外多糖的抗氧化活性

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摘要

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.
机译:通过摇瓶发酵法优化了灵芝的培养基组成和发酵条件,研究了胞外多糖的抗氧化活性。结果表明,GA菌株液体发酵的最佳条件为:碳源为玉米粉,氮源为大豆粉,初始pH为6.0,接种量为8%,发酵温度为32 o C,发酵时间为7 d。 GA菌株的胞外多糖可以清除羟自由基(HR)和超氧阴离子自由基(SAR),且胞外多糖的浓度与抗氧化活性呈正相关。

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