CAJ | 학술논문

在纤维素乙醇研究中，木质纤维原料在酸性预处理过程中会产生甲酸、乙酸、乙酰丙酸、糠醛和5-羟甲基糠醛等发酵抑制物，这些发酵抑制物会影响葡萄糖发酵生产乙醇的收率。本文考察了发酵液中各种发酵抑制物含量对高温超级酿酒酵母发酵乙醇收率的影响。研究结果表明，多种发酵抑制物的协同作用对乙醇发酵的影响要高于单一种类发酵抑制物对乙醇发酵的影响。发酵液中发酵抑制物总量一般控制在3.0g/L以内时，对葡萄糖发酵生产乙醇的抑制作用不明显。
재섬유소을순연구중，목질섬유원료재산성예처리과정중회산생갑산、을산、을선병산、강철화5-간갑기강철등발효억제물，저사발효억제물회영향포도당발효생산을순적수솔。본문고찰료발효액중각충발효억제물함량대고온초급양주효모발효을순수솔적영향。연구결과표명，다충발효억제물적협동작용대을순발효적영향요고우단일충류발효억제물대을순발효적영향。발효액중발효억제물총량일반공제재3.0g/L이내시，대포도당발효생산을순적억제작용불명현。
In pretreatments of lignocellulosic materials for bioethanol production,certain amount of sugars was degraded as fermentation inhibitors,and the degradation was much more severe in the acidic pretreatment.Theses fermentations inhibitors including formic acid, acetic acid, levulinic acid,furfural,and 5-hydroxymethylfurfural (HMF)which affect the conversion yield of ethanol from glucose fermentation.This paper examined the effect of the five fermentation inhibitors concentration on the ethanol yield of Saccharomyces cerevisiae glucose fermentation. The results show that, synergistic effect of various fermentation inhibitors on ethanol fermentation was higher than single fermentation inhibitor on ethanol fermentation.The total fermentation inhibitors in fermentation solutions generally controlled within 3.0g/L,which inhibitory effect on glucose fermentation for ethanol is not obvious.