April 2012
Occurrence and implications of resistance to antibiotics and organic acids in Enterococcus faecalis isolated from fruit juices marketed in Ado-Ekiti
The study investigated the growth of Enterococcus faecalis in various fruit juice products, their resistance to antibiotics and their ability to be grown in the presence of most organic acids commonly employed as preservatives. E. faecalis strains were isolated from seven out of nine fruit juices using serial dilution and pour plate method. The total bacterial counts observed in the juice...
April 2012
Antioxidant activity of extract from the leaves of Tylophora asthmatica
Extract from the leaves of Tylophora asthmatica were investigated for antioxidant activity. The methanolic extract of T. asthmatica had a 2, 2 diphenyl 1-1-picryl hydiazyl (DPPH) scavenging activity of 84.6% at 250 μg/ml and a reductive potential of 0.77% at 100 μg/ml. These values were comparable with those of Gallic acid, 91.4% at 250 μg/ml and ascorbic acid, 0.79% at 60...
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