Possible antimutation effects of 13 preparations of Chinese Traditional Medicinal Herbs on Salmonella typhimurium TA98 and TA100 mutants were tested. 2-AF,AFB_1,MNNG and NaN_3 were used as mutagens.

• 用当归等13种中药的丙酮提取液对AFB_1、二氨基芴(2-AF)、亚硝基胍(MNNG)、迭氮钠(NaN_3)等致突变物诱导鼠伤寒沙门氏菌TA98,TA100突变株回复突变抑制作用实验。