Production of lactic acid from cellobiose and cellotriose by Lactobacillus delbrueckii mutant Uc-3 |
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Authors: | Adsul Mukund Khire Jayant Bastawde Kulbhushan Gokhale Digambar |
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Affiliation: | NCIM, National Chemical Laboratory, Pune 411 008, Maharashtra, India. |
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Abstract: | Lactobacillus delbrueckii mutant Uc-3 utilizes both cellobiose and cellotriose efficiently, converting it into L(+) lactic acid. The enzyme activities of cellobiose and cellotriose utilization were determined for cell extracts, whole cells, and disrupted cells. Aryl-beta-glucosidase activity was detected only for whole cells and disrupted cells, suggesting that these activities are cell bound. The mutant produced 90 g/liter of lactic acid from 100 g/liter of cellobiose with 2.25 g/liter/h productivity. |
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