作者采用化学分离方法从生药藜芦中所得的提出物,经过动物急性测毒试验、加温试验及试管内制菌强度测定,初步证明其丙酮硷提出物甚为满意,成本低,便于大量提取,毒性小,制菌力亦较高,为25微克/毫升左右,即1:40,000稀释度。同时证明加温对藜芦中抗结核菌有效成分并无影响,且可大大降低毒性。 The chemical separation method was used to extract propionic acid from Veratrum avenae, acute animal poisoning test, heating test and in vitro test of antibacterial strength, initially proved its propionate is very satisfied, low cost, easy to extract in large quantities , Small toxicity, high bacteriostatic power, about 25 micrograms / milliliter, that is 1: 40,000 dilution. At the same time, it is proved that heating has no effect on the active ingredients of anti-TB in veratris, and can greatly reduce the toxicity.