Growth Kinetics and Product Inhibition of Lactococcus lactis IO-1 Culture in Xylose Medium
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概要
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Lactococcus lactis IO-1 (JCM 7638) produced less than 10 g・l^<-1> of acetate as a by-product from xylose in batch culture. This low level of acetate did not markedly inhibit growth or L-lactate production, while L-lactate on the other hand exhibited a strong inhibitoryeffect. An examination of the kinetics of lactate fermetation by strain IO-1 in xylose medium revealed that L-lactate was responsible for end-product inhibition of the non-competitive type. Numerical analysis of the results of fermentation resulted in the determination of a variety of kinetic parameters. Using these parameters, a computer simulation program developed in a previous study was modified in order to fit batch culture for zylose medium. The results from the computer simulation and fermentation experiments, which had the same initial conditions, were in good agreement.
- 公益社団法人日本生物工学会の論文
- 1995-09-25
著者
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Ishizaki Ayaaki
Department Of Food Science And Technology Faculty Of Agriculture 46-09 Kyushu University
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Ueda Tomoko
Department Of Food Science And Technology Faculty Of Agriculture Kyushu University
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