The effect of some plant extracts on pathogenic fungi that cause human & animal infections

Abstract

Two types of plant extracts (Eucalyptus & Oleander)were evaluated for their antimicrobial activity against two food spoilage fungal organisms(Aspergillus flavus & Penecillum). The plant extracts were prepared by ethanolic extraction of their leaves & concentrated after that .Two concentrations of each extract were prepared (1,0.5)mg/ml& tested for their antifungal activity . The results revealed that both extracts at the both concentrations inhibited the growth of (A. flavus & P.) significantly as compared with control . For Eucalyptus extract ,the differences between (0.5& 1)mg/ml concentrations on both average diameter & inhibition zone was insignificant in their effect on( A. flavus & P.)but the differences were significant between only the tow concentrations & the control , For Oleander extract ,the differences between the two concentrations were insignificant on average diameter of both fungal organism ,as where on inhibition zone the differences were significant between the (1& 0.5)mg/ml concentrations ,the concentration 1mg/ml was more efficient than 0.5mg/ml concentration.