Pakistan Journal of Biological Sciences1028-88801812-5735Asian Network for Scientific Information10.3923/pjbs.2008.2513.2516YassaN. Razavi BeniH. HadjiakhoondiA. 1220081121The present study was designed to evaluate antioxidant
activity of different parts of Shahani black grape berries. The antioxidant
activity of grape berry juice, seed and skin extracts were measured by
the inhibition of lipid peroxidation (Ferric Ammonium Thiocyanate) and
free radical scavenging activity (2, 2-diphenyl-1-picrylhydrazyl) methods.
Vitamin E and Butylated Hydroxy Toluene (BHT) were used as reference values.
The free radical scavenging capacity of grape extracts followed this order:
seed methanol extract> skin extract> grape juice> seed hexane
extract. Meanwhile, inhibitions of lipid peroxidation of seed methanol
and hexane extracts were the highest, grape skin extract activity was
intermediate and that of grape juice was the lowest. It seems that the
antioxidant activity of samples from grape seed and skin extracts to be
mainly based on inhibition of lipid peroxidation, whereas the Antioxidant
Activity of grape juice is based on free radical scavenging activity.
The results indicate that Shahani black grape has potent antioxidant activity
specially on lipid peroxidation and has beneficial effects on human health
and help to prevent disease which are caused by free radicals.]]>El-Alfy, A.T., A.A.E. Ahmed and A.J. Fatani,200552264270Avicenna,19911st Edn.pp: 271pp: 271Bagchi, D., M. Bagchi, S.J. Stohs, D.K. Das and S.D. Ray et al.,2000148187197Baydar, N.G., G. Ozkan and O. Sagdic,2004Vitis vinifera L.) extracts.]]>15335339Fuhrman, B., N. Volkova, R. Coleman and M. Aviram,2005135722728Fuhrman, B., N. Volkova, R. Coleman and M. Aviram,2005135722728Jayaprakasha, G.K., T. Selvi and K.K. Sakariah,2003Vitis vinifera) seed extracts.]]>36117122Jinming, X., B. Allenbrand and G.Y. Sun,199863383390Keevil, J.G., H. Osman, N. Maalej and J.D. Folts,1998ex vivo platelet aggregation while orange and grapefruit juices do not.]]>31172172Kim, Y.J., H.J. Park, S.H. Yoon, M.J. Kim, K.H. Leem, J.H. Chung and H.K. Kim,20051146744678Kotamballi, N., M. Chidambara, R.P. Sing and G.K. Jayaprakasha,2002Vitis vinifera) pomace extracts.]]>5059095914Li, W.G., X.Y. Zhang, Y.J. Wu and X. Tian,20012211171120Nikitina, N.A., I.A. Sobenin, V.A. Myasoedova, V.V. Korennaya, A.A. Mel’nichenko, E.M. Khalilov and A.N. Orekhov,2006ex vivo model.]]>141712715Rice-Evans, C.A. and N.J. Miller,199624790795Ruberto, G., A. Renda, C. Daquino, V. Amico, C. Spatofora, C. Tringali and N. De Tommasi,2007100203210Saito, M., H. Hosoyama, T. Ariga, S. Kataoka and N. Yamaji,19984614601464Sanchez-Moreno, C., J.A. Larrauri and F. Saura-Calixto,199932407412Sehirli, O., Y. Ozel, E. Dulundu, U. Topaloglu, F. Ercan and G. Sener,2008224348Shanmuganayagam, D., M.R. Beahm, H.E. Osman, C.G. Krueger, J.D. Reed and J.D. Folts,200213235923598Shrififar, F., N. Yassa and A. Shafiee,2003Otostegia persica (Labiatae) and its constituents.]]>2235239Steinberg, D. and A. Lewis,19979510621071Teissedre, P.L., E.N. Frankel, A.L. Waterhouse, H. Peleg and J.B. German,1996in vitro human LDL oxidation by phenolic antioxidants from grape and wines.]]>705561Yassa, N., F. Sharififar and A. Shafiee,2005Otostegia persica as a source of natural antioxidants.]]>433338Halliwell, B.,1994344721724