The differences in specific antioxidant capacity observed in the two studies suggest that potato genotype influenced the accumulation of phenolic compounds by synthesizing different quantities
and/or types of phenolics, since the antioxidant activity of phenolic compounds is affected by their substitution patterns and is modulated by the degree and position of hydroxylation (Shahidi & Naczk, 1995), and in the case of anthocyanins, by the hydroxylation and glycosylation patterns (Wang, Cao, & Prior, 1997). 3.5. Varietal differences in anthocyanin content of potato chips