Tropaeolum tuberosum Ruíz y Pav. (mashua) is a tuber cultivated in Andean zones as Huancavelica, with traditional use in food and functional potential due to its content of bioactive compounds. Due to its short fresh shelf life, its preservation is required. Hot air drying, an alternative to solar drying, can affect the stability of these compounds depending on the temperature applied. Therefore, the objective was to evaluate the effect of temperature (50, 60, 70 and 80 °C) of hot air drying on remaining water content (Y) and total phenolic content (TPC) in three morphotypes of mashua (Zapallo, Sangre de Cristo and Negra). The tubers were washed, disinfected with sodium hypochlorite (50 ppm), cut (2.5 mm), and dried (150 g) for 16 h. Free moisture was determined in the dried samples. They were then ground (particles < 850 μm) and extracts (80% methanol, 50 mg/mL) were prepared for ...

Tropaeolum tuberosum Ruíz y Pav. (mashua) is a tuber cultivated in Andean zones as Huancavelica, with traditional use in food and functional potential due to its content of bioactive compounds. Due to its short fresh shelf life, its preservation is required. Hot air drying, an alternative to solar drying, can affect the stability of these compounds depending on the temperature applied. Therefore, the objective was to evaluate the effect of temperature (50, 60, 70 and 80 °C) of hot air drying on remaining water content (Y) and total phenolic content (TPC) in three morphotypes of mashua (Zapallo, Sangre de Cristo and Negra). The tubers were washed, disinfected with sodium hypochlorite (50 ppm), cut (2.5 mm), and dried (150 g) for 16 h. Free moisture was determined in the dried samples. They were then ground (particles < 850 μm) and extracts (80% methanol, 50 mg/mL) were prepared for ...