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- Nutritional, technological, and sensory changes induced by different drying methods on purees made with Andean grainsPublication . Jimenez, Dolores; Lobo, Manuel; Motta, Carla; Castanheira, Isabel; Sammán, NormaA fresh baby puree (FP) was elaborated with quinoa and amaranth flours (native and germinated), and the nutritional, technological, and sensory changes induced by different drying methods were investigated: lyophilization (LD), forced convection (CD), and extrusion (ED). FP had an amino acids content appropriate for baby consumption; ED had lower digestibility (75%) compared with CD (82%) and LD (83%). ED had the highest water absorption capacity (2.2 g/g). Rehydrated LD had the lightest color (L* = 67), while rehydrated ED (L* = 59) was the darkest. Rehydrated ED had the highest hardness (335 N), adhesiveness (1199 N.m), and chewiness (209 N). Both rehydrated LD and CD were described as having an intense, bitter, and strange flavor; while rehydrated ED was described as dark, consistent, sweet, fruity, and presented the best acceptability. Therefore, the appropriate method to obtain dehydrated baby purees was extrusion. Novelty impact statement