Antimicrobial studies of some selected medicinal plants

Dept. of Biochemistry, J.J.College of Arts & Science, Pudukkottai-622 404. Tamil Nadu, India.
Ancient science of life 04/2002; 21(4):230-9.
Source: PubMed


Antimicrobial activities were detected in the 80% ethanolic extract of Achyranthes aspera, Ficus glomerata, Leucas aspera, Thespesia populnea and Zizyphus jujube against Escherichia coli, Klebsiella pneumoniae and salmonella typhi. The treatments resulted in the formation of various inhibitory zones, in contrast to the control where no inhibitory zone was observed.

Download full-text


Available from: PubMed Central · License: CC BY-NC-SA
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: Antibacterial activity pf various parts (stem, leaf and fruits) of solvent extracts (petroleum ether, alcohol and acetone) of Solanum xanthocarpum against Escherichia coli, Klebsiella pneumoniae, Salmonella typhi and Bacillus cereus were detected by zone of inhibition. The extracts of Solanum xanthocarpum showed high sensitivity to Kiebsiella pneumoniae and Salmonella typhi, moderate sensitivity to Escherichia coli and less sensitivity and resistant to Bacillus cereus. In control, there is no inhibitory zone observed.
    Full-text · Article · Oct 2003
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: Nerium indicum [Family:Apocynaceae] is commonly known as Arali [Tam] found throughout India, and has been used in the treatment of cancer, cardiotonic, leprosy and skin diseases. Plant parts such as root, bark and leaves are used. The present study is therefore undertaken to analyse its phyto chemical constituents in solvents like Benene, Chloroform and Alcohol and to screen its antibacterial activity. The dried leaf sample is extracted with solvents by cold maceration. The phytochemical analysis showed the presence of Alkaloids, Terpenoids, Cardiac glycosides, Saponins, Tannins & Carbohydrates in all the solvents. All the extracts were screened for antibacterial activity by Disc Diffusion Method. Out of the cultures used Staphylococccus aureus, Pseudomonas aeruginosa and Salmonella typhimurium showed better zone of inhibition which is 10mm, 9mm & 7 mm respectively.
    Full-text · Article · Apr 2007
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: A chyranthes aspera Linn. (Amaranthaceae family) is an important medicinal plant that possesses many therapeutic properties. The study was conducted to investigate the quantitative components, total antioxidant, and free radical scavenging activities of various extracts of roots and inflorescences of A. aspera. Present study was conducted to evaluate the antioxidant activity of different sequential extracts (petroleum ether, benzene, chloroform, ethyl acetate, ethanol, and distilled water) of A. aspera roots and inflorescence, which includes 1,1-diphenyl-2-picrylhydrazyl (DPPH), ferric reducing antioxidant power (FRAP), and total antioxidant capacity (TAC). On other hand, quantitative assays (total phenol content, total flavonol content, total flavonoid content, total proanthocynidin content, and total tannin content) were also assessed using standard protocols. Results depicted strong antioxidant activity in both root and inflorescence parts of A. aspera. It can be inferred that A. aspera serves as a potent antioxidant agent and could be exploited to manufacture drug for the treatment of various human ailments.
    Full-text · Article · Mar 2014 · Asian Journal of Pharmaceutics
Show more