Abstract
ABSTRACT: Buckwheat is a pseudocereal with a high starch content and compounds of nutritional interest, making it suitable for use in gluten-free baking. A simplex-centroid design was employed to investigate the effects of the mixture components of buckwheat flour, buckwheat starch, and rice flour in nine different proportions. The minimum and maximum limits for the components were 10% and 30% for buckwheat flour, 20% and 40% for buckwheat starch, and 50% and 70% for rice flour, aiming to create diverse gluten-free breads for evaluation. The utilized flours underwent characterization, and their micro- and macronutrient amounts, along with their amino acid compositions, were determined. Specific volume analysis, water loss determination, texture assessment, and sensory evaluations were conducted on the breads. It was observed that the proportion of starch and buckwheat flour directly influenced the specific volume and water loss during product storage. Through sensory analysis, the formulation with the highest acceptance and purchase intention among tasters was identified. Free-choice profiling analysis established the sensory profiles of the developed gluten-free bread formulations. According to tasters, the formulations exhibited characteristics of whole meal bread, noticeable softness, and a homogeneous alveolar distribution. The gluten-free bread was well-received by 124 tasters, with a purchase intention rate of 93.55%.
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