Nutritional contents of advanced breeding clones of Solanum tuberosum group Phureja

Abstract

Nutritional contents of seven advanced breeding clones (AC) of potato (Solanum tuberosum group Phureja) and two commercial cultivars, Criolla Colombia and Criolla Galeras, of S. tuberosum group Phureja as control were evaluated. Fat, protein, ash, dietary fibre, and mineral contents were determined in whole boiled tubers. The AC-04 had the highest levels of protein (9.7 g/100 g dried weight, DW) and magnesium (107.0 mg/100 g DW) as compared to Criolla Colombia (4.0 g of protein/100 g DW and 99.5 mg of magnesium/100 g DW) and Criolla Galeras (3.1 g of protein/100 g DW and 95.0 mg of magnesium/100 g DW). The highest contents of fat (0.7 g/100 g DW), soluble dietary fibre (4.9 g/100 g DW), and manganese (0.8 mg/100 g DW) were found in AC-09, values that represented 3.9, 1.7, and 1.2 fold increase as compared to Criolla Colombia, respectively, and 3.9, 1.8, and 1.1 fold increase as compared to Criolla Galeras. The AC-51 had the highest content of insoluble dietary fibre (13.8 g/100 g DW). Among all genotypes the AC-52 had the highest contents of iron (1.3 fold increase), zinc (1.2 fold increase), and calcium (1.3 fold increase) as compared to Criolla Colombia.