中国生物工程杂志

Effect of organic acids on 1.3 propanediol fermentation was studied in this paper.The adsorption of organic acids from glycerol fermentation liquor by ion-exchange resins was investigated.The results showed that organic acid and 1.3 propanediol production was innegative relationship.The static adsorption showed that ion-exchange resin 005 had the best adsorption abilities of the organic acids in the glycerol fermentation liquor. It was showed that the yield of 1.3propanediol increased by 166% after the extraction of organic acids from glycerol fermentation liquor.