Utilization of molasses sugar for lactic acid production by Lactobacillus delbrueckii subsp delbrueckii mutant Uc-3 in batch fermentation
Utilization of molasses sugar for lactic acid production by Lactobacillus delbrueckii subsp delbrueckii mutant Uc-3 in batch fermentation
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DOI：
10.1128/aem.01595-07
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发表时间：
2008-01-01
影响因子：
4.4
通讯作者：
Gokhale, Digambar
中科院分区：
文献类型：
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作者：
Dumbrepatil, Arti;Adsul, Mukund;Gokhale, Digambar
研究了德布鲁克氏乳杆菌突变体Uc-3分批发酵甘蔗糖蜜产乳酸的效果。酵母浸膏浓度对糖蜜乳酸发酵效果影响不显著。乳酸终浓度随糖蜜浓度的增加而增加，最高可达190 g/l。当糖蜜浓度为190 g/l时，乳酸浓度达到166 g/l，产率为4.15 g/l /h。如此高浓度的乳酸和高的糖蜜生产效率以前没有报道过，因此突变体Uc-3可能是一个潜在的候选品种，可以在商业规模上经济地从糖蜜中生产乳酸。
Efficient lactic acid production from cane sugar molasses by Lactobacillus delbrueckii mutant Uc-3 in batch fermentation process is demonstrated. Lactic acid fermentation using molasses was not significantly affected by yeast extract concentrations. The final lactic acid concentration increased with increases of molasses sugar concentrations up to 190 g/liter. The maximum lactic acid concentration of 166 g/liter was obtained at a molasses sugar concentration of 190 g/liter with a productivity of 4.15 g/liter/h. Such a high concentration of lactic acid with high productivity from molasses has not been reported previously, and hence mutant Uc-3 could be a potential candidate for economical production of lactic acid from molasses at a commercial scale.