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2011 (Vol. 3, Issue: 4)
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 

Key words:  Antioxidant activity, Azadirachta indica, DPPH free radicals, polyphenols, Telfairia occidentalis, ,
Vol. 3 , (4): 430-434
Submitted Accepted Published
2010 October, 16 2010 November, 15 2011 July, 15

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.
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  Cite this Reference:
C.P. Anokwuru, O. Ajibaye and A. Adesuyi, 2011. Comparative Antioxidant Activity of Water Extract of ,em>Azadiractha indica Stem Bark and Telfairia occidentalis Leaf.  Current Research Journal of Biological Sciences, 3(4): 430-434.
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ISSN (Online):  2041-0778
ISSN (Print):   2041-076X
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