为探讨黄芪对大肠杆菌生长的影响,通过配制不同浓度的黄芪肉汤培养基,用试管培养法测定A值来判断大肠杆菌的生长状况,并分析了各种影响因素。结果显示,0.62%～20%7个浓度的黄芪中药肉汤培养基在不同时间或固定时间对大肠杆菌都有促生长作用,且不同接种菌量、黄芪本身及菌体的增加对实验结果没有影响。结论:黄芪有促进大肠杆菌生长的作用。 In order to investigate the effect of Astragalus on E. coli growth, the growth status of E. coli was determined by preparing different concentrations of Astragalus broth medium and measuring the A value by tube culture method, and various influencing factors were analyzed. The results showed that 0.62%~20% of 7 concentrations of Astragalus membranaceus broth media had a growth-promoting effect on E. coli at different times or at fixed times, and the increase in the amount of different inoculum, Astragalus itself, and the bacterial cells did not have any effect on the experimental results. influences. Conclusion: Astragalus has the effect of promoting the growth of E. coli.