Microbial transformation of quinic acid to shikimic acid by Bacillus megaterium
Saptarshi Ghosh, Harish Pawar, Omkar Pai, Uttam Chand Banerjee
Bioresources and Bioprocessing ›› 2014, Vol. 1 ›› Issue (1) : 7.
Microbial transformation of quinic acid to shikimic acid by Bacillus megaterium
Biotransformation of quinic acid to shikimic acid was attempted using whole cells of Bacillus megaterium as a biocatalyst.
Physico-chemical parameters such as temperature (37°C), pH (7.0), agitation (200 rpm), substrate (5 mM) and cell mass concentrations (200 kg/m 3) and reaction time (3 h) were found optimum to enhance the bioconversion. Maximum conversion (89%) of quinic acid to shikimic acid was achieved using the above optimized parameters. Shikimic acid was extracted from the reaction mixture by a pH-dependent method and maximum recovery (76%) was obtained with petroleum ether.
Biotransformation of quinic acid to shikimic acid seems to be a better alternative over its fermentative production.
Shikimic acid / Quinic acid / Biotransformation
[1.] |
|
[2.] |
|
[3.] |
|
[4.] |
|
[5.] |
|
[6.] |
|
[7.] |
|
[8.] |
|
[9.] |
|
[10.] |
|
[11.] |
|
[12.] |
|
[13.] |
|
[14.] |
|
[15.] |
|
[16.] |
|
[17.] |
|
[18.] |
|
[19.] |
|
[20.] |
|
[21.] |
|
[22.] |
|
/
〈 |
|
〉 |