Rabe T, van Staden J
Department of Botany, University of Natal Pietermaritzburg, Scotsville, South Africa.
J Ethnopharmacol. 1997 Mar;56(1):81-7. doi: 10.1016/s0378-8741(96)01515-2.
Crude extracts from 21 South African medicinal plants, traditionally used for ailments of an infectious or septic nature, were screened for in vitro antibacterial activity using the agar diffusion and dilution methods. Almost all the activity exhibited was against Gram-positive bacteria, with 12 of the 21 plant species tested showing some activity against Bacillus subtilis. Only the Warburgia salutaris methanol extract inhibited the growth of Escherichia coli. None of the extracts had any activity against Klebsiella pneumoniae. The highest activity was found in the methanol extracts from Bidens pilosa, Psidium guajava, Artemisia afra and Warburgia salutaris. The majority of the antibacterial activity was present in the methanolic, rather than the aqueous extracts.
对21种传统上用于治疗传染性或脓毒性疾病的南非药用植物的粗提物，采用琼脂扩散法和稀释法进行体外抗菌活性筛选。几乎所有表现出的活性都是针对革兰氏阳性菌，在测试的21种植物中有12种对枯草芽孢杆菌表现出一定活性。只有沃氏沃伯格樟甲醇提取物能抑制大肠杆菌生长。没有一种提取物对肺炎克雷伯菌有活性。在三叶鬼针草、番石榴、南非蒿和沃氏沃伯格樟的甲醇提取物中发现了最高活性。大部分抗菌活性存在于甲醇提取物中，而非水提取物中。
