Effects of different sodium salts and nitrogen sources on the production of 3-hydroxybutyrate and polyhydroxybutyrate by Burkholderia cepacia

Bioresources and Bioprocessing

卷:8

Shijie Liu¹  Jiaqi Huang¹  Shaoming Jiang¹  Jinyue Qiao¹  Wanyue Cui¹  Jianfei Wang¹  Zixuan Qu¹  Huanyu Guo¹  Xingyu Chen¹ 

[1] Department of Chemical Engineering, SUNY College of Environmental Science and Forestry;

关键词: 3-Hydroxybutyrate;    Polyhydroxybutyrate;    Burkholderia cepacia;    Sodium salts;    Nitrogen source;   

DOI  :  10.1186/s40643-021-00418-x

来源: DOAJ

【 摘 要 】

Abstract The effects of NaCl, Na2SO4, Na2HPO4, and Na3C6H5O7 on the production of 3-hydroxybutyrate, polyhydroxybutyrate, and by-products by Burkholderia cepacia. Proper addition of Na3C6H5O7 can significantly promote the production of 3-hydroxybutyric acid and polyhydroxybutyrate. The concentration, productivity, and yield of 3-hydroxybutyrate were increased by 48.2%, 55.6%, and 48.3% at 16 mM Na3C6H5O7. The increases of 80.1%, 47.1%, and 80.0% in the concentration, productivity, and yield of polyhydroxybutyrate were observed at 12 mM Na3C6H5O7. Na2SO4 and Na2HPO4 also have positive effects on the production capacity of 3-hydroxybutyrate and polyhydroxybutyrate within a certain range of concentration. NaCl is not conducive to the improvement of fermentation efficiency. Compared with a single nitrogen source, a mixed nitrogen source is more conducive to enhancing the production of 3-hydroxybutyrate and polyhydroxybutyrate.

【 授权许可】

Unknown