Phenolic Composition and Antioxidant and Antiproliferative Activities of the Extracts of Twelve Common Bean (Phaseolus vulgaris L.) Endemic Ecotypes of Southern Italy before and after Cooking

Figure 3

Principal component analysis (PCA): distribution of 12 raw and 12 cooked bean varieties along principal components 1 (PC1) and 2 (PC2). using 7 variables. White circles indicate nonpigmented raw varieties and white squares, nonpigmented cooked varieties. Red circles represent red raw cultivars, red squares for red cooked beans, green circles for speckled raw beans, green squares for speckled cooked beans, black circles for dark raw beans, and black squares for dark cooked beans.