Part two was studied on the effect of malate on fermentationactivity of forage diet by Ruminococcus flavefaciens in pure culture.
试验二是研究苹果酸对黄化瘤胃球菌发酵粗料型日粮活力的影响。
2
The results showed that yeast increased quickly at initial stage, along with the fermentation, then it will decline, finally the fermentationactivity became zero.
结果表明，发酵初期酵母菌数量增长较快，随着发酵的进行又逐步下降，最终酵母活力降至零；
3
The production of astaxanthin can be improved from the genetic manipulation and fermentation control by enhance the activity of pyruvate dehydrogenase.