CAJ | 학술논문

对酿酒酵母GGSF16不同初始葡萄糖浓度乙醇发酵进行研究，旨在了解不同初始葡萄糖浓度乙醇发酵过程，得到乙醇分批发酵的最适初始葡萄糖浓度。通过Logistic方程对乙醇发酵过程进行拟合。基于得到的拟合方程，对乙醇发酵过程中葡萄糖消耗、酵母生长及乙醇生成的速率进行比较。结果表明，随着初始葡萄糖浓度升高，发酵过程中葡萄糖消耗、酵母生长及乙醇生成的速率降低以及达到最大速率的时间滞后，从发酵结果综合比较乙醇浓度、葡萄糖利用率及发酵效率，初始葡萄糖浓度为286.5 g/L的乙醇发酵结果较为理想,最终乙醇浓度达到133.14 g/L，葡萄糖利用率为99.07%，对总糖的发酵效率为90.95%。
대양주효모GGSF16불동초시포도당농도을순발효진행연구，지재료해불동초시포도당농도을순발효과정，득도을순분비발효적최괄초시포도당농도。통과Logistic방정대을순발효과정진행의합。기우득도적의합방정，대을순발효과정중포도당소모、효모생장급을순생성적속솔진행비교。결과표명，수착초시포도당농도승고，발효과정중포도당소모、효모생장급을순생성적속솔강저이급체도최대속솔적시간체후，종발효결과종합비교을순농도、포도당이용솔급발효효솔，초시포도당농도위286.5 g/L적을순발효결과교위이상,최종을순농도체도133.14 g/L，포도당이용솔위99.07%，대총당적발효효솔위90.95%。
The effects of different initial glucose concentration on ethanol fermentation by S.cerevisiae GGSF16 were investigated in order to sum up the optimum glucose concentration for ethanol batch fermentation. Through the fitting of ethanol fermentation process by Logistic equation, we obtained the fitting equation and could compare the rates of glucose consumption, yeast growth, and ethanol yield in ethanol fermentation with different initial glucose concentration. The results suggested that, with the increase of initial glucose concentration, the rates of glucose consump-tion, yeast growth, and ethanol yield reduced and presented the maximum time-lag eventually. As the initial glucose concentration was 286.5 g/L, satisfactory ethanol fermentation effects could be achieved (the final ethanol concentration was up to 133.14 g/L, glucose utilization rate was 99.07%, and the fermenting efficiency of total sugars reached up to 90.95%).