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Abstract
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Article Information:
Comparative Antioxidant Activity of Water Extract of ,em>Azadiractha indica Stem Bark and Telfairia occidentalis Leaf
C.P. Anokwuru, O. Ajibaye and A. Adesuyi
Corresponding Author: C.P. Anokwuru
Submitted: 2010 October, 16
Accepted: 2010 November, 15
Published: 2011 July, 15 |
Abstract:
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The antioxidant activity of Azadirachta indica stem bark and Telfairia occidentalis leaf aqueous
extract was studied. The Total Phenolic Content (TPC) was determined using folin Ciocalteu method while the
Total Flavonoid Content (TFC) was determined using aluminum chloride method. Antioxidant activity was
determined using 2, 2-diphenyl-1-picryl hydrazine (DPPH) inhibition. Telfairia occidentalis extracted more
phenols (11.32g GAE/ 100g) than Azadirachta indica stem bark (10.74g GAE/100g) but not significantly
different (p<0.05). Azadirachta indica stem bark extracted more flavonoid content (5.21g QE/100g) than
Telfairia occidentalis leaf (0.96g QE/100g). Azadirachta indica stem bark inhibited more free radicals (83%)
than Telfairia occidentalis leaf (65%). This study showed that Azadirachta indica stem bark had higher
antioxidant activity compared to Telfairia occidentalis leaf.
Key words: Antioxidant activity, Azadirachta indica, DPPH free radicals, polyphenols, Telfairia occidentalis, ,
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Cite this Reference:
C.P. Anokwuru, O. Ajibaye and A. Adesuyi, . Comparative Antioxidant Activity of Water Extract of ,em>Azadiractha indica Stem Bark and Telfairia occidentalis Leaf. Current Research Journal of Biological Sciences, (4): 430-434.
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ISSN (Online): 2041-0778
ISSN (Print): 2041-076X |
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