The Inhibition Effect of Liqurice (Glycyrrhiza glabra ) on some bacteria Maysoon Sabah Abbas and Ekram Abbas Abood AL- Samarrae

Abstract

This study was conducted to investigate the inhibition role of Liqurice (Glycyrrhiza glabra ) on some bacteria
spp ., Watery and Oily Liqurice extracts prepared to study the inhibition effect on ( Listeria monocytogenus ,
Brucella abortus , Brucella meletensis , Escherichia. coli , Pseudomonus aeruginosa , Bacillus anthracis
Sterne strain , Salmonella typhimurium , Klebsiella pneumoniae , Staphylococcus aureus ) serial plates
powered with cultural media Nutrient Agar were inoculated with one of each bacteria studied then filter papers
filled with each type of Liqurice extracts were added and after incubation period then the inhibition Zone were
measured . the results revealed that inhibition effect of mixed and Oily Liqurice extracts was more effected on
L. monocytogenus , S. aureus, P. aeruginosa , B. anthracis Sterne strain , K. pneumoniae . The mixed extract
had no inhibition effect on Br. abortus , Br. meletensis , E. coli , the Oily Liqurice extract had no inhibition
effect on Br. meletensis , S. typhimurium the watery extract had no inhibition effect on the bacteria in this study