Bhat Ramesa Shafi, Al-Daihan Sooad
Biochemistry Department, College of Science, King Saud University, P. O. Box 22452, Riyadh 11495, Saudi Arabia.
Asian Pac J Trop Biomed. 2014 Mar;4(3):189-93. doi: 10.1016/S2221-1691(14)60230-6.
To investigate the antibacterial activity and photochemicals of five green leafy vegetables against a panel of five bacteria strains.
Disc diffusion method was used to determine the antibacterial activity, while kanamycin was used as a reference antibiotic. The phytochemical screening of the extracts was performed using standard methods.
All methanol extracts were found active against all the test bacterial strains. Overall maximum extracts shows antibacterial activity which range from 6 to 15 mm. Proteins and carbohydrates was found in all the green leaves, whereas alkaloid, steroids, saponins, flavonoids, tannins were found in most of the test samples.
The obtain result suggests that green leafy vegetables have moderate antibacterial activity and contain various pharmacologically active compounds and thus provide the scientific basis for the traditional uses of the studied vegetables in the treatment of bacterial infections.
研究五种绿叶蔬菜对一组五种细菌菌株的抗菌活性和植物化学成分。
采用纸片扩散法测定抗菌活性,以卡那霉素作为参考抗生素。提取物的植物化学筛选采用标准方法进行。
发现所有甲醇提取物对所有测试细菌菌株均有活性。总体而言,最大提取物显示出6至15毫米的抗菌活性范围。在所有绿叶中均发现了蛋白质和碳水化合物,而在大多数测试样品中发现了生物碱、类固醇、皂苷、黄酮类化合物、单宁。
所得结果表明,绿叶蔬菜具有适度的抗菌活性,并含有各种药理活性化合物,从而为所研究蔬菜在治疗细菌感染方面的传统用途提供了科学依据。