Effect of different fibre addition on cookie dough and texture

Author:

Gruppi Alice1,Giuberti Gianluca1,Duserm Garrido Guillermo1,Spigno Giorgia1ORCID

Affiliation:

1. DiSTAS – Department for Sustainable Food Process – Faculty of Agriculture, Food and Environmental Sciences, Università Cattolica del Sacro Cuore, Piacenza, Italy

Abstract

Different commercial fibres from bamboo (BAM), cocoa (COC), psyllium (PSY), chokeberry (ARO) and citrus (CIT) were characterized for technological (oil- and water-holding capacity, solubility and bulk density) and physical (moisture, colour and particle size) features and added to a cookie recipe. The doughs were prepared using sunflower oil and white wheat flour was substituted with 5% (w/w) of the selected fibre ingredient. The attributes of the resulting doughs (colour, pH, water activity and rheological tests) and cookies (colour, water activity, moisture content, texture analysis and spread ratio) were compared to control doughs and to cookies made with refined flour and whole flour formulation. The selected fibres consistently impacted dough rheology and, consequently on, the spread ratio and the texture of the cookies. While the viscoelastic behaviour of the control dough made with refined flour was maintained in all sample doughs, adding fibre decreased loss factor (tan δ), except for ARO-added dough. Substitution of wheat flour with fibre decreased the spread ratio except for the PSY addition. The lowest spread ratio values were observed for CIT-added cookie, which were similar to whole flour cookies. The addition of phenolic-rich fibres positively affected the in vitro antioxidant activity of the final products.

Publisher

SAGE Publications

Subject

Industrial and Manufacturing Engineering,General Chemical Engineering,Food Science

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