Impacts of tempering and infrared heating of pulse seeds on the functionality and digestibility of air-classified fine stream

Impacts of tempering and infrared heating of pulse seeds on the functionality and digestibility of air-classified fine stream | Authorea try { document.documentElement.classList.add('js'); } catch (e) { } var _gaq = _gaq || []; _gaq.push(['_setAccount', 'G-8VDV14Y67G']); _gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); })(); Skip to main content Preprints Collections Wiley Open Research IET Open Research Ecological Society of Japan All Collections About About Authorea FAQs Contact Us Quick Search anywhere Search for preprint articles, keywords, etc. Search Search ADVANCED SEARCH SCROLL Sustainable Food Proteins This is a preprint and has not been peer reviewed. Data may be preliminary. 21 April 2025 V1 Latest version Share on Impacts of tempering and infrared heating of pulse seeds on the functionality and digestibility of air-classified fine stream Authors : Ke Ding , Areha Abid , Kashika Sethi , Michael Nickerson 0000-0002-9040-5639 , Thomas Warkentin 0000-0003-3059-0606 , Mark Pickard , and Yongfeng Ai 0000-0002-3229-386X [email protected] Authors Info & Affiliations https://doi.org/10.22541/au.174525130.05873296/v1 Published Sustainable Food Proteins Version of record Peer review timeline 322 views 202 downloads Contents Abstract Supplementary Material Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract This study aimed to employ tempering and subsequent infrared (IR) heating as seed pre-treatments to enhance the functional properties and in vitro protein digestibility (IVPD) of air-classified fine stream (i.e., protein concentrate) from round pea, faba bean, and wrinkled pea. Due to the absence of effective modifications on protein and starch, the tempering did not influence the separation between these two major constituents during the air classification and exhibited negligible effects on the functional attributes and digestibility of the obtained fine stream, except for water-holding capacity (WHC). As an efficient and short-time thermal method, IR pre-treatment led to protein denaturation and starch gelatinization in round pea, faba bean, and wrinkled pea, thus showing some negative influence on the separation of protein and starch in the air classification. Although IR heating reduced the protein solubility of fine stream from 79.9%-83.4% to 24.0%-33.1% for the three pulse varieties, this pre-treatment did not considerably affect their particle morphologies and size distributions nor foaming and emulsifying properties. As a result of protein denaturation, IR heating enhanced WHC from 0.42-0.65 g/g to 1.82-1.98 g/g and IVPD from 78.6%-83.0% to 85.3-86.7% for the three fine stream samples. IR heating can be utilized to pre-treat different pulse seeds to improve the techno-functional attributes and digestibility of protein concentrates from air classification. Supplementary Material File (2025.0417 figures, final.docx) Download 13.13 MB File (2025.0417 tables, final.docx) Download 40.40 KB File (2025.0417 tempering and ir on ac_main body.docx) Download 136.31 KB Information & Authors Information Version history V1 Version 1 21 April 2025 Peer review timeline Published Sustainable Food Proteins Version of Record 29 Aug 2025 Published Copyright This work is licensed under a Non Exclusive No Reuse License. Collection Sustainable Food Proteins Keywords functional properties legumes novel processing protein digestibility Authors Affiliations Ke Ding University of Saskatchewan View all articles by this author Areha Abid University of Saskatchewan View all articles by this author Kashika Sethi University of Saskatchewan View all articles by this author Michael Nickerson 0000-0002-9040-5639 University of Saskatchewan College of Agriculture and Bioresources View all articles by this author Thomas Warkentin 0000-0003-3059-0606 University of Saskatchewan View all articles by this author Mark Pickard InfraReady Products (1998) Limited View all articles by this author Yongfeng Ai 0000-0002-3229-386X [email protected] University of Saskatchewan View all articles by this author Metrics & Citations Metrics Article Usage 322 views 202 downloads .FvxKWukQNSOunydq8rnd { width: 100px; } Citations Download citation Ke Ding, Areha Abid, Kashika Sethi, et al. Impacts of tempering and infrared heating of pulse seeds on the functionality and digestibility of air-classified fine stream. Authorea . 21 April 2025. DOI: https://doi.org/10.22541/au.174525130.05873296/v1 If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download. For more information or tips please see 'Downloading to a citation manager' in the Help menu . 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