摘要
进行了甜菜碱不同加量对脱氮假单胞杆菌发酵产VB12影响的实验。结果表明,甜菜碱减量对VB12发酵单位不但无显著负影响,反而可以提高发酵单位。在此基础上考察了发酵培养基中甜菜碱不同加量对VB12发酵单位的影响,发酵培养基中甜菜碱的量由7.0 g/L降至3.0 g/L,对VB12发酵单位无显著影响;还考察了补料中甜菜碱减量对VB12发酵单位的影响,补料中甜菜碱量由30 g/L降至15 g/L,对VB12发酵单位无显著影响。
Effect of adding betaine with various quantity on VB12 fermentation of Pseudomonas denitrificans was studied. Experimental results showed that the reduction of betaine not only had no significant negative impact on the VB12 fermentation units, but also improved the fermentation units. On this basis, impact of adding betaine with different dosage in the fermentation medium on VB12 fermentation units was examined, results showed that in the fermentation medium concentration of betaine decreased from 7.0 g· L^ -1 to 3.0 g · L^-1, no significant impact on the VB12 fermentation units occured. Effect of decrement of betaine in fed on VB12 fermentation units was also studied, results showed that the concentration of betaine decreased from 30 g · L^-1 to 15 g · L^-1, no significant effect occured.
出处
《中国兽药杂志》
2010年第3期31-33,共3页
Chinese Journal of Veterinary Drug
关键词
甜菜碱
发酵单位
脱氮假单胞杆菌
经济效益
betaine
fermentation units
Pseudomonas denitrificans
economic benefits
