Access to this article is restricted until 12 months after publication by request of the publisher. Restriction lift date: 30/08/2024
Comparative studies of structural and thermal gelation behaviours of soy, lentil and whey protein: A pH-dependency evaluation
| dc.check.date | 30/08/2024 | en |
| dc.check.info | Access to this article is restricted until 12 months after publication by request of the publisher | en |
| dc.contributor.author | Tang, Qi | en |
| dc.contributor.author | Roos, Yrjö H. | en |
| dc.contributor.author | Miao, Song | en |
| dc.contributor.funder | China Scholarship Council | en |
| dc.contributor.funder | Horizon 2020 | en |
| dc.date.accessioned | 2023-11-30T12:09:43Z | |
| dc.date.available | 2023-11-30T12:09:43Z | |
| dc.date.issued | 2023-08-30 | en |
| dc.description.abstract | A growing global concern about human health, environment, and sustainable food supplies has motivated researchers to find new alternatives to dairy proteins. To investigate the effects of pH and protein varieties on the thermal gelation behaviors, plant protein (soy and lentil) and dairy protein (whey) were subjected to a variety of pH treatments. SDS-PAGE showed that only partial subunits of soy and lentil protein were involved in disulphide bonded aggregate formation regardless of pH, and that of whey protein was inhibited at acidic conditions and facilitated at higher pH. Both soy and lentil protein did not form self-standing gels at pH 5.0, while whey protein did, and all proteins displayed different morphologies as pH moved away from 5.0, from white, opaque, and heterogeneous to relatively transparent and homogeneous. Soy protein exhibited its optimal gel performance at pH 9.0 (storage modulus of 946.05 Pa) with the highest content of α-helix, intramolecular β-sheet, and intermolecular/aggregated β-sheet, while whey protein demonstrated its peak gel performance at pH 7.0 (storage modulus of 26271.90 Pa). Lentil protein displayed the best gel performance at pH 3.0 and was comparable to that of whey protein (storage modulus of 5366.00 and 4965.00 Pa, respectively). These findings confirmed that lentil protein has the potential to substitute whey and soy protein in formulations of diversified food products in some specific pH systems. This work highlighted the importance of pH control to achieve desired gelation performance and offered valuable insights for selecting suitable protein alternatives in formulating plant-based food products. | en |
| dc.description.sponsorship | China Scholarship Council (No. 201908320414) | en |
| dc.description.status | Peer reviewed | en |
| dc.description.version | Accepted Version | en |
| dc.format.mimetype | application/pdf | en |
| dc.identifier.articleid | 109240 | en |
| dc.identifier.citation | Tang, Q., Roos, Y.H. and Miao, S. (2024) ‘Comparative studies of structural and thermal gelation behaviours of soy, lentil and whey protein: A pH-dependency evaluation’, Food Hydrocolloids, 146, 109240, (12 pp). https://doi.org/10.1016/j.foodhyd.2023.109240. | en |
| dc.identifier.doi | 10.1016/j.foodhyd.2023.109240 | en |
| dc.identifier.eissn | 1873-7137 | en |
| dc.identifier.endpage | 12 | en |
| dc.identifier.issn | 0268-005X | en |
| dc.identifier.issued | A | en |
| dc.identifier.journaltitle | Food Hydrocolloids | en |
| dc.identifier.startpage | 1 | en |
| dc.identifier.uri | https://hdl.handle.net/10468/15283 | |
| dc.identifier.volume | 146 | en |
| dc.language.iso | en | en |
| dc.publisher | Elsevier | en |
| dc.relation.project | info:eu-repo/grantAgreement/EC/H2020::IA/862957/EU/Smart Protein for a Changing World. Future-proof alternative terrestrial protein sources for human nutrition encouraging environment regeneration, processing feasibility and consumer trust and accepta/SMART PROTEIN | en |
| dc.relation.uri | https://doi.org/10.1016/j.foodhyd.2023.109240 | en |
| dc.rights | © 2023 Published by Elsevier Ltd. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/ | en |
| dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/4.0/ | en |
| dc.subject | Soy protein | en |
| dc.subject | Lentil protein | en |
| dc.subject | Whey protein | en |
| dc.subject | pH | en |
| dc.subject | Thermal gelation property | en |
| dc.title | Comparative studies of structural and thermal gelation behaviours of soy, lentil and whey protein: A pH-dependency evaluation | en |
| dc.type | Article (peer-reviewed) | en |
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