EFECTO DE LA EXTRUSIÓN SOBRE LAS CARACTERÍSTICAS FÍSICO-QUÍMICAS DE HARINA DE QUINUA (Chenopodium quinoa Willd)

Quinoa (Chenopodium quinoa WILLD) is a pseudocereal produced for many years in Andean regions and allows different transformations taking advantage of their nutritional qualities becoming it a food agribusiness alternative. Objective of this study was to observe physical and chemical changes from two quinoa flour varieties (Blanca dulce de Jericó and Tunkahuan) during extrusion process and determine conditions (flour moisture, temperature and screw speed) that allow obtain an extruded similar to precooked functional properties. Water absorption index (IAA), water solubility index (ISA) and swelling power (PH) was response variables. Two flour extrusion at 105°C degrees, 150 rpm screw speed and 25 to 30% moisture improved functional properties (IAA increased from 1,81 g gel/g D.M to 4,22 g gel/g D.M in Tunkahuan extruded quinoa flour and 2,00 g gel/g to 4,27 g gel MS/MS g flour in Blanca dulce de Jericó) but nutriotional properties decreased as digestibility except for a carbohydrate content increase.

Abstract licence: CC BY-NC-ND

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