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espanolSe han estudiado las propiedades antioxidantes y composicion fisicoquimica de 21 genotipos de papas criollas Solanum tuberosum (Phureja). Se determino el contenido de humedad, cenizas, proteinas, almidon, azucares totales y reductores, actividad antioxidante (ABTS y FRAP), fenoles totales y vitamina C. El analisis fisicoquimico mostro variaciones genotipicas significativas en muestra cruda. La humedad entre 72,06% - 77,07%; cenizas 0,96% - 2,56%; proteinas 6,95% - 11,38% BS; almidon 14,44% - 22,4%; azucares totales BH 16,38%-23,67% y azucares reductores BH 0,88%-3,8%. El perfil antioxidante evidencio diferencias genotipicas. ABTS entre 4408 - 12543 (crudo) y 6644 a 14492 (cocidas) µmol de Trolox/100g BS. FRAP de 76,4 a 203,2 (crudo) y de 121,6 a 324,8 (cocidas) mg acido ascorbico/100 g BS. Los fenoles en muestras cocidas fueron mayores que en crudo (245,2 -524,8 y 161,6 - 442,7 mg de acido galico/100 g BS, respectivamente, la vitamina C disminuyo entre 33,07% a 68,8% luego de coccion. EnglishThe antioxidant properties and physicochemical composition of 21 genotypes of diploid potato (Solanum tuberosum Phureja Group) were studied. The content of moisture, ash, proteins, starch, total and reducing sugars, antioxidant activity (ABTS and FRAP), total phenols and vitamin C were determined. The physicochemical analysis showed significant genotypic variations in raw sample. Humidity between 72.06% - 77.07%; Ash 0.96% - 2.56%; Proteins 6.95% - 11.38% DB; Starch 14.44% - 22.4%; Total sugars WB 16,38% -23,67% and reducing sugars WB 0,88% -3,8%. The antioxidant profile showed genotypic differences. ABTS between 4408 - 12543 (raw) and 6644 to 14492 (cooked) μmol Trolox / 100g DB. FRAP from 76.4 to 203.2 (raw) and from 121.6 to 324.8 (cooked) ascorbic acid / 100 g DB. The phenols in cooked samples were higher than in crude (245.2 -524.8 and 161.6 - 442.7 mg gallic acid/100 g BS, respectively, vitamin C decreased from 33.07% to 68.8 % after cooking.

Composición Fisicoquímica y Propiedades Antioxidantes de Genotipos Nativos de Papa Criolla ( Solanum tuberosum Grupo Phureja)