Abstract
Two wheat varieties DBW88 (strong) and HI1500 (weak) were utilized for the extraction and fortification of gliadins, glutenins, low molecular weight (LMW), and high molecular weight (HMW) glutenin fractions at the 3% and 5% levels to study microstructure and secondary structure of native and fortified dough. Glutenins and HMW-GS supplementation in the dough was depicted in the form of long fiber–like structure and large sheets covering the starch molecules; however, opening of gluten-starch network was caused by globular gliadin proteins inclusion. LMW-GS addition fractionated the matrix into small continuous sheets with short strands enfolding the starch-protein network. Higher proportion of intra and intermolecular β-sheets, β-turns, and anti-parallel β-sheets was found to be increasing with HMW glutenins, glutenins, LMW glutenins, and gliadins addition on comparing with control dough of variety DBW88. A subtle difference in the pattern of secondary structure was noticed with the samples of the other variety HI1500 due to the allelic variation in subfractions of isolated protein fractions.
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Thanks to GAIN (Axencia Galega de Innovación) for supporting this research (grant number IN607A2019/01).
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A.D.: Conceptualization, methodology, investigation, validation, formal analysis, writing-original draft preparation; B.S.K.: methodology, investigation, validation, formal analysis, contribution in writing; S.P.B.: methodology, investigation, validation, formal analysis and contribution in writing in relevant section; V.C.: data analysis, writing-review and editing, final draft supervision and monitoring; J.M.L.: review and editing, final draft supervision and monitoring. All authors read and approved the final manuscript.
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Aastha Dewan declares that she has no conflict of interest. Bhupendar S. Khatkar declares that he has no conflict of interest. Sneh Punia Bangar declares that she has no conflict of interest. Vandana Chaudhary declares that she has no conflict of interest. Jose M. Lorenzo declares that he has no conflict of interest.
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Dewan, A., Khatkar, B.S., Bangar, S.P. et al. Infrared Spectroscopy and Microstructural Assessment of Dough with Varying Wheat Gluten Fractions. Food Anal. Methods 15, 2821–2829 (2022). https://doi.org/10.1007/s12161-022-02331-1
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DOI: https://doi.org/10.1007/s12161-022-02331-1