Optimization of process variables for enhanced lactic acid production utilizing paneer whey as substrate in SMF
| Autor: | Abhishek Dutt Tripathi, S K Srivastava, Prashant Singh, R P Singh, S P Singh, Alok Jha, Poonam Yadav |
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| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: | |
| Zdroj: | Applied Food Biotechnology, Vol 2, Iss 2, Pp 46-55 (2015) |
| Druh dokumentu: | article |
| ISSN: | 2345-5357 2423-4214 |
| Popis: | The production of lactic acid from dairy by-product (paneer whey) via SMF by Lactobacillus delbruckii was optimized in the present study. Three process variables viz; inoculum size, temperature and pH were optimized using CCRD. Design Expert 8.0.2.0 trial depicted that an optimum concentration of 8.00 % (v/v) size of inoculum, 5.50 pH and 36.53 °C temperature gave lactic acid and biomass yield of 5.61 g/L and 4.27 g/L, respectively. Lactic acid production was scale up in 7.5 L bioreactor under optimized conditions and it gave lactic acid and biomass yield of 39.2± 1.4 and 47.6 ±0.8 g/L, respectively. µg, YP/S, YP/X and productivity were found to be 0.14 h-1, 0.66 g/g, 0.70 g/g and 1.98 g/L. h, respectively. Leudking Piret equation deduced that lactic acid production was growth associated which varies from earlier reports. Lactic acid was characterized by FTIR and HPLC. |
| Databáze: | Directory of Open Access Journals |
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