Lactic acid production by Enteroccocus faecium in liquefied sago starch
Enterococcus faecium No. 78 (PNCM-BIOTECH 10375) isolated from puto, a type of fermented rice in the Philippines was used to produce lactic acid in repeated batch fermentation mode. Enzymatically liquefied sago starch was used as the sole carbon source, since sago (Metroxylon spp.) is a sustainable...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Springer open
2012
|
| Subjects: | |
| Online Access: | http://ir.unimas.my/id/eprint/39994/3/Lactic%20acid%20prod..pdf http://ir.unimas.my/id/eprint/39994/ https://amb-express.springeropen.com/articles/10.1186/2191-0855-2-53 https://amb-express.springeropen.com/articles/10.1186/2191-0855-2-53 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | Enterococcus faecium No. 78 (PNCM-BIOTECH 10375) isolated from puto, a type of fermented rice in the Philippines
was used to produce lactic acid in repeated batch fermentation mode. Enzymatically liquefied sago starch was used as the sole carbon source, since sago (Metroxylon spp.) is a sustainable crop for industrial exploitation. Liquefied sago starch was inoculated with E. faecium to perform the saccharification and fermentation processes simultaneously.
Results demonstrated that E. faecium was reused for 11 fermentation cycles with an average lactic acid yield of
36.3 ± 4.71 g/l. The lactic acid production was superior to that of simple batch mode and continuous fermentation
in terms of lactic acid concentration. An un-dissociated lactic acid concentration of 1.15 mM affected the
productivity of the cells. Work is in progress to maintain and increase the usability of the cells over higher
fermentation cycles. |
|---|