| 摘要: |
| 研究了糖浓度对L-缬氨酸产生菌(Brevibacterium flavum)Apv-2 菌积累L-缬氨酸的影响,通过三十吨发酵罐发酵工艺条件的试验,在合适的外界条件下,确定了该菌种发酵L-缬氨酸的最佳初糖浓度和补糖浓度,在初糖质量浓度为3.5%～4.5%时,发酵至16h开始连续流加葡萄糖,维持发酵培养基中残糖质量浓度为1.2%～1.5%,经过48h左右发酵,L-缬氨酸发酵产酸率3.3%～3.5%. |
| 关键词: L-缬氨酸 低糖流加 发酵条件 |
| DOI： |
| 分类号:TQ922 |
| 基金项目: |
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| Study on the Conditions of L-valine Fermentation by Low-Glucose Addition |
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| Abstract: |
| The effect of glucose concentration on L-valine fermentation by Brevibacterium flavum was studied.The results showed that the initial of 3.5-4.5% and adding glucose constantly after 16 hours and keeping 1.2 to 1.5% of glucose in the fermentation march could produce L-valine 3.3-3.5%. |
| Key words: L-valine low-glucose addition conditions of fermentation |
