Biotechnology Bulletin ›› 2022, Vol. 38 ›› Issue (10): 45-53.doi: 10.13560/j.cnki.biotech.bull.1985.2021-0603

Previous Articles     Next Articles

Research Progress in 1, 3-Propanediol Production by Fermenting Crude Glycerol

JIANG Huan1,2(), MA Jiang-shan1,2(), ZENG Bai-quan1(), ZHANG Liang-bo2, LI Pei-wang2,3   

  1. 1. College of Life Science and Technology,Central South University of Forestry and Technology,Changsha 410004
    2. State Key Laboratory of Utilization of Woody Oil Resource,Changsha 410004
    3. Hunan Provincial Main Laboratory of Oil Molecular Structure and Construction of Hunan Academy of Forestry,Changsha 410004
  • Received:2021-05-08 Online:2022-10-26 Published:2022-11-11
  • Contact: MA Jiang-shan,ZENG Bai-quan E-mail:1874032285@qq.com;jiangshanma@hnu.edu.cn;baiquanzhn@163.com

Abstract:

Crude glycerol is the main by-product in biodiesel industrial. Direct bioconversion of crude glycerol into 1, 3-propanediol by microbial fermentation is promising for the value-added utilization of crude glycerol. This review outlines glycerol-based 1, 3-propanediol synthetic pathways and key enzymes,the effect of crude glycerol on microbial fermentation,the diverse 1, 3-propanediol-producing microbes involved in crude glycerol fermentation as well as improvement of crude glycerol conversion rate by microbial consortium. This review aims to provide insights for engineering 1, 3-propanediol-producing strain and improving bioconversion of crude glycerol.

Key words: crude glycerol, microbial fermentation, 1, 3-propanediol, impurity