Effect of the Extract of Fructus Tribuli on Growth of Lactobacillus Acidophilus

Effect of the extract of Fructus tribuli (EFT) on growth of Lactobacillus acidophilus LA04, LA05, LA06 and LA09 was studied by measuring optical density at 600 nm (OD600) and pH using MRS media as the control. The addition of EFT (v/v) was 1%, 2%, 3%, 4% and 5%. Results were as follows: addition of EFT could promote the growth of Lactobacillus acidophilus LA09, The optimum concentration of EFT in MRS media was 1% at incubation 24 h, but addition of EFT on growth of Lactobacillus acidophilus LA04, LA05 and LA06 has no significant effect.