高等学校化学学报

高等学校化学学报 ›› 2000, Vol. 21 ›› Issue (S1): 123.

• Chemistry in Energy Sciences • 上一篇    下一篇

Application of 2-Keto-L-gulonic Acid Extraction by Ultrafiltration

LI Chun-Yan1,2, HE Xu-Min1, FANG Fu-Lin3, LAN Wei-Guang1,3, XIA Hai-Ping1   

  1. 1. Department of Materials Science, Xiamen University, Xiamen S 61005;
    2. Department of Chemistry, Fujian Medical University, Fuzhou 350004;
    3. Xiamen University Suntar Menbrane Sci-technology Co. Ltd, Xiamen 361006
  • 出版日期:2000-12-31 发布日期:2000-12-31

Application of 2-Keto-L-gulonic Acid Extraction by Ultrafiltration

LI Chun-Yan1,2, HE Xu-Min1, FANG Fu-Lin3, LAN Wei-Guang1,3, XIA Hai-Ping1   

  1. 1. Department of Materials Science, Xiamen University, Xiamen S 61005;
    2. Department of Chemistry, Fujian Medical University, Fuzhou 350004;
    3. Xiamen University Suntar Menbrane Sci-technology Co. Ltd, Xiamen 361006
  • Online:2000-12-31 Published:2000-12-31

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摘要：

2-Keto-L-gulonic acid (for short gulonic acid), which was produced with pioneering twice fermentation technique in China, is an intermediate of the production of Vitamin C. The impurities (protein, mycelium et al.) in the fermentation liquor can be removed by heat precipitation of the original process, however, gulonic acid is heat-sensitive, its yield will be reduced when heating. The ultrafiltration membrane separation technique has been used to extract gulonic acid from Vitamin C fermentation liquor[1], which is operated at room temperature, with a pretreatment of the fermentation liquor before ultrafiltration, to avoid the jam of membrane.

Abstract:

2-Keto-L-gulonic acid (for short gulonic acid), which was produced with pioneering twice fermentation technique in China, is an intermediate of the production of Vitamin C. The impurities (protein, mycelium et al.) in the fermentation liquor can be removed by heat precipitation of the original process, however, gulonic acid is heat-sensitive, its yield will be reduced when heating. The ultrafiltration membrane separation technique has been used to extract gulonic acid from Vitamin C fermentation liquor[1], which is operated at room temperature, with a pretreatment of the fermentation liquor before ultrafiltration, to avoid the jam of membrane.

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