Journal
FOOD CHEMISTRY
Volume 425, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2023.136537
Keywords
Dough rheological properties; Gliadin; Psathyrostachys huashanica; Gluten microstructure; Biscuit
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In this study, we found that the wheat-P. huashanica addition line 7182-6Ns had a higher protein content and better dough rheological characteristics due to the presence of exogenous gliadin. The addition of exogenic gliadin to wheat flour improved the diameter, crispness, spread rate, thickness, hardness, and color of biscuits. This research provides a basis for improving biscuit wheat varieties by introducing exogenic gliadin.
Psathrostachys huashanica (P. huashanica), a wild relative of common wheat, is widely used in wheat variety improvement because of its many beneficial properties. In this study, we carried out preliminary analysis on the grain and flour quality of wheat-P. huashanica addition line 7182-6Ns and its wheat parents 7182, and found that 7182-6Ns had a higher protein content and great dough rheological characteristics and investigated the reasons for the changes. The results indicated that 7182-6Ns contained exogenous gliadin, which changed the gliadin composition and increased the ratio of gliadin in total gluten proteins, rebuilt gluten microstructure and thus optimized dough extensibility. As the addition of 7182-6Ns gliadin gradually increased to wheat flour, the diameter, crispness and spread rate of biscuit increased, the thickness and hardness decreased, and the colour improved. The current research provides a basis for understanding the introduction of exogenic gliadin to improve biscuit wheat varieties.
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