Starchy effluent from rice noodle manufacturing process as feasible substrate for direct lactic acid production by Lactobacillus plantarum S21
2014
Kanpiengjai, A., Chiang Mai University, Chiang Mai, Thailand | Lumyong, S., Faculty of Science Chiang Mai University, Chiang Mai, Thailand | Pathom-aree, W., Faculty of Science Chiang Mai University, Chiang Mai, Thailand | Khanongnuch, C., Chiang Mai University, Chiang Mai, Thailand
In utilization of both starch containing wastewater and gelatinized starchy waste, Lactobacillus plantarum S21 demonstrated the high capability of lactic acid production directly from starchy effluent and maintained its potency even at high concentration of initial starchy substrate of 40, 60 and 80 g/L by maximum yielding 1.00¡¾0.06, 0.89¡¾0.03, 0.90¡¾0.07 g/g substrate, productivity of 0.79¡¾0.06, 0.98¡¾0.00, 1.23¡¾0.07 g/L¡¤h and production efficiency of 94.6, 78.8, and 74.3%, respectively, at 48 h fermentation. This is the first report on direct conversion of starchy wastes to lactic acid by amylolytic lactic acid bacterium using high concentration of starchy substrate.
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