Results suggest that anthocyanins in the Salad Blue potatoes
were better stabilised than in the other tuber varieties. Notable
losses of anthocyanins (approximately 58%) were observed in the
flour of Herbie 26, a red-fleshed potato, because of raw material
processing (mainly the blanching stage), mainly affected by
changes in the content of pelargonidin-3-p-coumaorylrutinoside-
5-glucoside (a 62.9% loss). From the results, it can be observed that
the highest losses of anthocyanins were in the flour prepared from
tubers of the Blue Congo variety and the lowest in the flour from
red-fleshed potatoes of the Herbie 26 variety. Lachman et al.
(2012) stated that the total anthocyanin contents and their profiles
were strongly associated with potato cultivars of red, purple or
blue-coloured flesh.