ANTIMICROBIAL PROPERTIES OF Cympobogon citratus AND Cocos nucifera OILS

Category : JOURNAL OF BIOLOGICAL SCIENCES AND BIOCONSERVATION, VOLUME 2, NUMBER 1, 2010

Jolaoso A.A; Ajayi J.O and Ogunmuyiwa S.I.O

Moshood Abiola Polytechnic, Abeokuta, Nigeria

E-mail:jolaazeezat@yahoo.co.uk

ABSTRACT

Cympobogon citratus and Cocos nucifera oil were evaluated for their antibacterial and antifungal activity against pathogenic strains of Klebsiella pneumoniae ,Salmonella typhi, Esherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus ATT25667 and Candida albicans(the only fungi strain).The antimicrobial properties against the aforementioned strains were compared to standard antibiotics, third generation fluoroquinolone ciprofloxacin and imidazole respectively. The Salmonella typhi strain showed higher susceptibility to Cympobogon citratus oil while Pseudomonas aeruginosa and Klebsiella pneumoniae showed appreciable susceptibility. In Cocos nucifera oil, the Candida albicans showed a greater susceptibility when compared to the standard imidazole.The Cocos nucifera oil showed greater susceptibility to Staphylococcus aureus and Eshcerichia coli strain. Therefore the oil extract of these Cympobogon citratus and Cocos nucifera have been found to have potential application for prevention of bacteria and fungi infection. The present study supports its traditional uses.

Keywords:  antibacterial, antifungal, antiseptic, antibiotic

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COMPARATIVE BIOINSECTICIDAL EFFECT OF ETHANOLIC EXTRACT OF ZANTHOXYLUM ZANTHOXYLOIDES (LAM) ZEPERNICK & TIMLER ONSOME SELECTED INSECTS OF ECONOMIC IMPORTANCE TO MAN

Category : JOURNAL OF BIOLOGICAL SCIENCES AND BIOCONSERVATION, VOLUME 2, NUMBER 1, 2010

Mohammad Gbate

Department of Science Laboratory Technology

 Federal Polytechnic, Bida, Nigeria

gbatem2007@yahoo.com

ABSTRACT

Ethanolic extract of Zanthoxylum zanthoxyloides was assayed for its insecticidal propertieson Musca domestica, Callosobruchus maculates, Anopheles mosquito and Sitophilus zeamais. 1%, 2% and 4% w/v of aqueous solution of the extract was topically administered on the insects and mortality was monitored at 15, 30, 45, 60, 90 and 105 minutes intervals. The efficacy of the extract as insecticide increases with increasing concentration with 4% solution giving the best result in all cases. 4% w/v of the extract killed all the M. domestica, C. maculates, Anopheles mosquito and S. zeamais by 75th, 45th, 60th and 45th minutes respectively. This suggest that Z.  zanthoxyloides has a great potential as a bioinsecticide. Keywords: Ethanolic extract, Zanthoxylum zanthoxyloides, bioinsecticide

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