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JSIR Vol.67 [2008] >
JSIR Vol.67(07) [July 2008] >
| Title: | Direct conversion of raw starch to lactic acid by Lactobacillus plantarum MTCC 1407 in semi- solid fermentation using sweet potato (Ipomoea batatas L.) flour |
| Authors: | Panda, S H
Ray, R C |
| Keywords: | Lb. plantarum MTCC 1407
Raw starch
Lactic acid
Response surface methodology
Semi- solid fermentation
Sweet potato flour |
| Issue Date: | Jul-2008 |
| Publisher: | CSIR |
| Abstract: | Lactobacillus plantarum MTCC 1407 was used for direct fermentation of raw starch in sweet potato (Ipomoea
batatas L.) flour (SPF) to lactic acid (LA) under semi- solid fermentation using Mann Rogassa Sharpe medium containing
(3%) SPF in lieu of glucose (2%) as carbon source. Response Surface Methodology (RSM) was used to evaluate effect of
incubation period, temperature and pH on LA production, using a full factorial Central Composite Design (CCD). At optimum
parameters (incubation period, 120 h; temperature, 35°C and pH, 6.5), maximum starch conversion by Lb. plantarum MTCC
1407 to LA was 56.4%. The organism produced (L+) LA (23.86 g) from starch (55 g) present in SPF (100 g); LA production
yield (mass LA produced mass starch present in SPF⁻¹ x 100) was 43.4%. |
| Page(s): | 531-537 |
| ISSN: | 0022-4456 |
| Source: | JSIR Vol.67(07) [July 2008]
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