Premium
Antibacterial activity of Orobanche cernua extract
Author(s) -
Saadoun Ismail,
Hameed Khalid M.
Publication year - 1999
Publication title -
journal of basic microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.58
H-Index - 54
eISSN - 1521-4028
pISSN - 0233-111X
DOI - 10.1002/(sici)1521-4028(199912)39:5/6<377::aid-jobm377>3.0.co;2-0
Subject(s) - cefotaxime , bacillus cereus , streptococcus pyogenes , microbiology and biotechnology , staphylococcus aureus , antibacterial activity , biology , minimum inhibitory concentration , cereus , streptococcus , sisomicin , staphylococcus , bacteria , nalidixic acid , antibiotics , ampicillin , tobramycin , gentamicin , genetics
The effect of the parasitic plant Orobanche cernua extract was evaluated on 5 different Gram‐positive and Gram‐negative bacteria. Dilution experiments show that the minimum inhibitory concentration (MIC; μg/ml) of the extract was as follows: Staphylococcus aureus — 1526.5; Streptococcus sp. — 3125; Streptococcus pyogenes — 25000 and both for Bacillus cereus and Escherichia coli‐ 50000 μg/ml. Data indicated that the MIC of 3125 μg/ml is equal to cefotaxime (30 μg) and tobromycin (10 μg) activity against Streptococcus sp. and S. aureus , respectively; 25000 and 50000 μg/ml is equal to cefotaxime (30 μg) activity against S. pyogenes and B. cereus , respectively, and 50000 μg/ml is equal to nalidixic acid (30 μg) activity against E. coli . It can be concluded that the O. cernua extract displays remarkable activity against some Gram‐positive bacteria such as Streptococcus and Staphylococcus .