Formulation optimisation of gluten-free functional spaghetti based on quinoa, maize and soy flours

Abstract

In this work, the formulation of non-conventional gluten-free fresh and dry pasta based on quinoa, maize and defatted soy was optimised. Results showed that the dough samples with high content of maize had the higher value of elongation and shear viscosity and then increased dough firmness. The pre-gelatinised maize content also affected the rheological properties by increasing the dough firmness. Regarding the dry spaghetti sensorial properties, the surface response plot showed that the overall acceptability of both non-cooked and cooked spaghetti increases with the increase of the pre-gelatinised maize content and the decrease of the quinoa flour, whereas the soy flour did not affect the overall quality. In particular, the pre-gelatinised maize improved the resistance to break and the taste of non-cooked and cooked spaghetti, respectively. Regarding the fresh spaghetti, results showed that the overall acceptability for fresh non-cooked spaghetti increases with the increase of the pre-gelatinised maize content and with the decrease of the quinoa flour; whereas, only the pre-gelatinised maize content affected the overall acceptability of fresh cooked spaghetti. © 2011 The Authors. International Journal of Food Science and Technology © 2011 Institute of Food Science and Technology.