Physical properties of gluten-free bread caused by water addition
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Department of Equipment Operation and Maintenance in the Food Industry, University of Life Sciences, Doświadczalna 44, 20-280 Lublin, Poland
Thermal Engineering Department, University of Life Sciences, Doświadczalna 44, 20- 280, Lublin, Poland
Department of Biochemistry and Food Chemistry, University of Life Sciences, Skromna 8, 20-704 Lublin, Poland
Division of Cereal Technology, Faculty of Food Sciences, Warsaw University of Life Sciences, Nowoursynowska 159C, 02-786 Warsaw, Poland
Institute of Agrophysics, Polish Academy of Sciences, Doświadczalna 4, 20-290 Lublin, Poland
Publication date: 2015-07-10
Int. Agrophys. 2015, 29(3): 353-364
In this paper, we propose for the first time a description (regression and canonical form) of the changes in the physical properties of several types of natural gluten-free bread produced with different amounts of water in the recipe. Five types of bread, made of corn flour (100%), rice flour (100%), corn and rice flour (50:50%), buckwheat, corn, and rice flour (30:35:35%), were investigated. It has been noticed that, by changing the amount of water addition to the dough, it is possible to significantly affect the quality of different types of natural gluten-free bread. Addition of water from 80 to 120% of flour mass, resulted in significant changes in the quality of bread. Bread made of corn flour required the largest amount of water addition (120%); however, bread made of rice flour was characterized by a better quality with the lowest amount of water addition (80%), while bread made of corn and rice flour and buckwheat, corn, and rice flour were characterized by the best quality when the amount of water addition was 90%. Changes in the physical properties of bread were described as second degree polynomial regression equations or by linear regression and the canonical form was proposed.
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