CAJ | 학술논문

为了解决以甘蔗为原料发酵生产燃料乙醇中出现的肠膜明串株菌（Leuconostoc mesenteroides）污染问题,在酵母的不同生长期添加不同浓度的专用杀菌剂T-9001糖菌净,研究T-9001糖菌净对酵母生长和发酵性能的影响。结果表明,在生长初期,T-9001糖菌净明显抑制酵母生长;在对数生长期,T-9001糖菌净浓度为0.001%、0.010%时,对酵母生长影响较小,浓度为0.100%时才明显抑制酵母生长。T-9001糖菌净的浓度不影响发酵液中的酒精浓度,但是随着T-9001糖菌净浓度的增加和发酵时间的延长,酵母死亡率增高。
위료해결이감자위원료발효생산연료을순중출현적장막명천주균（Leuconostoc mesenteroides）오염문제,재효모적불동생장기첨가불동농도적전용살균제T-9001당균정,연구T-9001당균정대효모생장화발효성능적영향。결과표명,재생장초기,T-9001당균정명현억제효모생장;재대수생장기,T-9001당균정농도위0.001%、0.010%시,대효모생장영향교소,농도위0.100%시재명현억제효모생장。T-9001당균정적농도불영향발효액중적주정농도,단시수착T-9001당균정농도적증가화발효시간적연장,효모사망솔증고。
In order to solve the problem of dextran occurred in fuel ethanol industrial production from sugarcane juice,the Saccharomyces cerevisiae growth and fermentation were studied by adding different concentration of bactericides into different growth stage of S.cerevisiae.The results indicates that the bactericides can significant inhibit the early stage of S.cerevisiae growth.However,in logarithmic growth phase,slight effect of bactericides are detected in the concentration of 0.001% and 0.010%.When the concentration of bactericides reaches 0.100%,the S.cerevisiae growth was significantly affected.The bactericides will not affect the ethanol production.With the increase of bactericide concentration and fermentation time,the rate of S.cerevisiae death increases.