Development of nutrient medium based on soybean serum for cultivation of bifidobacteria

A nutrient medium for cultivation of bifidobacteria based on a soybean serum has been developed. It is proven that soy serum provides an active growth of bifidobacteria cells. It is observed that as the dose of soybean serum increases, the growth rate of bifidobacteria cells increases as well and reaches a maximum value at 100% serum concentration. In this case, the number of viable cells of bifidobacteria is 10I2CFU in 1 cm3, which is much higher than in the control sample. The optimum dose of glucose and other components in the nutrient medium for active growth of bifidobacteria was selected.