M. PERIFANOVA-NEMSKA, G. UZUNOVA, V. STOILOVA and D. BLAZHEVA
University of Food Technologies, BG - 4000 Plovdiv, Bulgaria
PERIFANOVA-NEMSKA, M., G. UZUNOVA, V. STOILOVA and D. BLAZHEVA, 2014. Antioxidant activity of Bulgarian cotton seed oil and soapstock against DPPH radical. Bulg. J. Agric. Sci., 20: 839-842
In the present study the antioxidant activities of oil from the seeds of a Bulgarian cotton variety and soapstock, obtained after the neutralization of the raw oil were investigated. As neutralizing agent were used 105, 117 and 129 g.dm-3 NaOH solutions. After the treatment with 117 and 129 g.dm-3 NaOH gossypol was found only in the soapstock. This was proven by the absence of antiradical activity against the DPPH radicals. Gossypol exhibited stronger antiradical activity against the DPPH radical, based on IC50, in comparison with BHA , ascorbic acid and BHT.