Total phenolic content in several potato cultivars (Brasov, 2015-2016)

Potato tubers are a valuable source of bioactive nutrients such starch, amino-acids, dietary fibers, vitamins, minerals and phenolic compounds. Some of these phenolics could have beneficial effects on humans health. The present study evaluated the total phenolic compounds (TPC) in skin and flesh of thirty potato genotypes grown in Brasov trials, over two years. Lower levels of TPC were found in the flesh than in the skin of the tubers. Blue varieties Salad Blue had the highest values for all parameters excepting the TPC in flesh which was higher in the genotype Blue Purple of Galanesti. For TPC, maximum values find in flesh and skin tissue were 3.76 and 10.79 mg / gallic acid equivalents (values reported on dry weight)