Evaluation the antimicrobial activity of aqueous  and alcoholic extracts of leaves  Ziziphus spina- christi (L)Desf

M.J. Abu- Mejdad  And A. M. Jaber, N.; D. Neama, J.

	Evaluation the antimicrobial activity of aqueous and alcoholic extracts of leaves Ziziphus spina- christi (L)Desf
basrah journal of science
Article 1, Volume 25, Issue 1, 2007, Pages 1-16 PDF (0 K)
Authors
N. M.J. Abu- Mejdad and A. M. Jaber; J. D. Neama
Abstract
Including this studying prepared aqueous and alcoholic extracts of leaves Ziziphus spina- christi (L)Desf chemical test showed that both aqueous and alcoholic extracts contain all active compounds which tested it exception resin , fuocoumarins compounds in aqueous extracts and resin in alcoholic extracts The inhibitory activity tested with aqueous and alcoholic extracts of leaves Ziziphus spina- christi (L)Desf against four bacterial isolates ; two gram positive Staphylococcus aureus , Streptococcus pyogens. and two gram negative Escherichia coli , Klebsiella pneumonia, in addition to two yeasts isolates Candida albicans , Cryptococcus neoformans by using four concentrations : ( 500 mg ml , 250 mg ml , 125 mg ml, 0.065 mg ml) from both extracts were used . Alcoholic extract concentrations showed an inhibitory activity against both types of isolates ( yeasts and bacterial isolates )the highest inhibition diameter rate( 18 mm) in concentration 500 mg ml against Staphylococcus aureus ; while Candida albicans showed the highest inhibition diameter( 32mm ) in concentration 500 mg ml . ِِ Aqueous extract concentrations did not appear any inhibition against all bacterial isolates , while clear inhibition appeared against fungal isolates ; the highest inhibition diameter rate (18mm) in concentration 500 mg ml against .Candida albicans. Also no action of any cytotoxicity against red blood cells had been shown for both types of extracts in concentration 500 mg ml.

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