... Manufacturer direct supply. [Product name]Radix Isatidis Extract[Appearance]brown yellow fine powder[Loss on drying]≤ ... , eight of typhoid, paratyphoid bacillus, dysentery ( shigellosis, Freund ) bacillus, Salmonella enteritidis has inhibition; acetone extract had the ... similar effect, and the effect of hemolytic streptococcus ( all use agar ...