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Free Radical Scavenging Activities of the Extracts from Banana
Corresponding Author(s) : Yongzhi Liao
Asian Journal of Chemistry,
Vol. 25 No. 11 (2013): Vol 25 Issue 11
Abstract
Under ultrasound, banana flesh (BF) and banana peel (BP) were extracted with acetone, ethanol, water and ethyl acetate solvents at 70 ºC to offer acetone extract (BFAE), ethanol extract (BFEE), water extract (BFWE), acetone extract (BPAE), ethanol extract (BPEE), water extract (BPWE) and ethyl acetate extract (BPEA), respectively. Their free radical scavenging activities were evaluated and compared with the common antioxidant butylated hydroxytoluene (BHT), employing DPPH• assay, ABTS+• assay, O2•− assay and OH• assay. The results showed that all the extracts displayed good radical scavenging activities, with IC50 less than standard value 10 mg/mL. It is important to point out that all these seven extracts demonstrated better scavenging activity than the commercial antioxidant butylated hydroxytoluene in OH• assay. The extract solvents were found to have important effect on their radical scavenging activities.
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References
C. Behl, Int. J. Vitam. Nutr. Res., 69, 146 (1999).
G. Scott, Chem. Br., 31, 879 (1995).
T.W. Stief, Med. Hypotheses, 60, 567 (2003).
W.O. Foye, T.L. Lemke and D.A. Williams, Principles of Medicinal Chemistry, BI Wavely Pvt. Ltd., edn. 4 (1995).
J.W. Heinecke, L. Baker, H. Rosen and A. Chait. J. Clin. Invest., 77, 757 (1986).
B. Terry, J.B. Terry and A. Wolk, J. Int. Med., 250, 280 (2001).
J. Sun, Y.F. Chu, X. Wu and R.H. Liu, J. Agric. Food Chem., 50, 7449 (2002).
A. Baldi, M.K Pandit and P. Ranka, Int. J. Pharm. Biol. Arch., 3, 157 (2012).
Y.L. Lee, M.T. Yen and J.L. Mau, Food Chem., 104, 1 (2007).
Y.M. Pan, X.P. Zhang, H.S. Wang, Y. Liang, J.C. Zhu, H.Y. Li, Z. Zhang and Q.M. Wu, Food Chem., 105, 1518 (2007).