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  • Title: Evaluation of producing gluten-free bread by utilizing amaranth and lipase and protease enzymes.
    Author: Azizi S, Azizi MH.
    Journal: J Food Sci Technol; 2023 Aug; 60(8):2213-2222. PubMed ID: 37273555.
    Abstract:
    Generating high pleasant and nutritious gluten-free (GF) bread for sufferers with celiac disease (CD) is a main task for food technologists. Amaranth is a useful nutrition and gliadin-free and could be utilized in GF products. At this study, by using different substitutions of amaranth flour (0%, 15%, 25%) GF bread samples were produced, and the effects of lipase and protease enzymes as bread improver have been investigated. On this assessment, physicochemical (ash, moisture, specific volume, bread yield, color index and porosity) and rheological (springiness, chewiness, cohesiveness, hardness and staling) characteristic, microstructure and sensory feature of bread were evaluated. The consequences tested the production bread with acceptable sensory properties is feasible with the aid of applying amaranth flour in GF bread formulations. Applying 15% amaranth flour increased meaningfully bread porosity and specific volume, but texture hardness was notably decreased. 25% amaranth flour formulation lowered hardness, specific volume and porosity of bread samples. Utilizing lipase and protease enzymes in 15% amaranth flour reduced texture hardness, porosity and specific volume, while the enzymes at 25% amaranth flour heightened the mentioned bread properties. In this result, for lower amaranth flour substitution (15%), using enzymes in formulation is not necessary, however enzymes in 25% Amaranth flour substitution could promote bread texture, porosity and specific volume.
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