Effect of the Steroidal Saponins of Fructus tribuli on Growth of Three Lactobacillus acidophilus

摘要

Effect of the steroidal saponins of Fructus tribuli on Growth of Lactobacillus acidophilus LA04, LA05 and LA06 was studied by measuring optical density at 600 nm (OD₆₀₀) and pH using MRS media as the control. The addition of steroidal saponins (w/v) was 0.05, 0.10, 0.15, 0.20 and 0.25%, respectively. Results were as follows: addition of steroidal saponins of Fructus tribuli could promote the growth of Lactobacillus acidophilus A04, LA05 and LA06 and the optimum concentration of steroidal saponins was all 0.25% for the three strains.