真空冻干过程对谷氨酸短杆菌的影响

Effects of Brevibacterium Glutamicum by Freeze-drying Preservation

为研究真空冷冻干燥过程对谷氨酸短杆菌TG866的影响,通过对冷冻干燥前后的谷氨酸菌种的生理生化特性、发酵能力进行比较研究.实验结果表明:冷冻干燥前后菌种的生理生化特性未发生改变,菌种发酵能力受冻干过程影响不大.

The Freeze-drying preservation（Freeze-drying）was adopted to preserve Brevibacterium glutamicum TG866.The results showed that the survival rate of TG866 after Freeze-drying reduced slightly but varied not much.TG866 can better maintain the fermentability after Freeze-dried.So we can conclude that freeze-drying can preserve the strain of producing L-glutamic acid TG866 effectively.