The Effect ofAqueousExtract and Essential Oils of the Leaves of Eucalyptus incrassate on β- Lactam ResistantStaphylococcusaureus | ||
| Ibn Al-Haitham Journal For Pure And Applied Science | ||
| Article 1, Volume 27, Issue 1, April 2014, Pages 76-82 | ||
| Authors | ||
| Ehab D. Salman; Abbas J.H. AL-Saedi; ; Suhad S.Yahya | ||
| Abstract | ||
| According to theextraction procedure,Eucalyptus incrassata leave sampleyielded 5% and 2% w/w(Based on dry leaves ) ofthe aqueousextract and essential oils respectively. Disk diffusion method was usedto determine the antimicrobial activity of aqueous extract and essential oils ofE .incrassata leaves against eight isolates of multidrug- resistant ofStaphylococcus aureus (S. aureus).It was found that aqueous extract and essential oils have variable antimicrobial activity(the inhibition zone diameter ranged from 7 to 14 mm respectively ) , while essential oils showed more effect than aqueous extract . It was noticed that values of Minimal Inhibitory Concentration ( MIC ) for aqueous extract is different from MIC of essential oils and these values were ranged from12.5 to 75mg/ml.It was also found that isolates collected from wound infections showed high resistance against aqueous extract and essential oils with MIC ranged from 50-75mg/ml, these variation in the MIC are probably due to some virulence factors which have a unique genetic determinant . The results indicated that the potential usefulness of the aqueous extract and essential oilsof Eucalyptus incrassataas an antimicrobial agent can be used in the treatment of multidrug-resistant S. aureusinfectious . | ||
| Keywords | ||
| Eucalyptus incrassate; Staphylococcus aureus; lactam; aqueous extract; Essential oils | ||
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