Antimicrobial activity and Phytochemical investigations of some volatile oils obtained from some Sudanese medicinal plants
Antimicrobial activity and Phytochemical investigations of some volatile oils obtained from some Sudanese medicinal plants
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Date
2015-04-01
Authors
Hashim, Egbal
Journal Title
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Publisher
University of Khartoum
Abstract
Ten volatile oils obtained from eight Sudaneseplants belonging to five
families, were tested for antimicrobial activity against four standard
organisms (Escherichia coli, Proteus vulgaris, Pseudomonas aeruginosa
and Staphylococcus aureus), fifty seven clinical isolates of E.coli,
Pr. vulgaris, Ps. aeruginosa, S. aureus (collected randomly from Sudanese
patients) and three standard fungi (Aspergillus niger, Candida albicans
and Saccharomyces cervisiae). Most volatile oils tested have moderate
activity against all standard organisms. All tested volatile oils showed some
degree of antimicrobial activity. The volatile oil of Citrus aurantifolia
obtained from leaves recordedthe highest activity against S.aureus; on the
other hand the volatile oil of Pimpinella anisumshowed low activity against
S.aureus. Volatile oils of Mentha spicata, Ocimum basilicumand Eucalyptus
globulushave low activity against Ps. aeruginosa,while Pr. vulgariswas
resistant to volatile oil of Eucalyptus globulus.
The activity of volatile oils against clinical isolates showed that volatile
oils of Mentha spicata, Cymbopogon citratus, Citrus aurantifolia(leaves,
fruit peel) and Citrus sinensis(leaves, and fruit peel) scored high activity
against all clinical isolates while volatile oils of Citrus paradisi, Pimpinell
anisum, Ocimum basilicumand Eucalyptus globulus showed low activity
compared with other volatile oils. Reference antibiotics were tested against
standard organisms and the results werecompared with the activity of the
volatile oils. Volatile oils showed some degree of antifungal activity.
Volatile oil of Citrus aurantifoliaobtained from leaves showed high activity
against all standard fungi tested.
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Keywords
Antimicrobial activity,Phytochemical investigations,volatile oils obtained, Sudanese medicinal plants