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Sodium ion interaction with psyllium husk (Plantago sp.)

Jimoh, M.A.; MacNaughtan, W.; Williams, H.E.L.; Greetham, D.; Linforth, R.L.; Fisk, Ian D.

Authors

M.A. Jimoh

W. MacNaughtan

H.E.L. Williams

D. Greetham

R.L. Linforth



Abstract

The nature of and factors effecting sodium interactions with psyllium were investigated in vitro. In a batch extraction system, psyllium mucilage gel retained at least 50% of sodium across a range of concentrations (5–300 mg sodium per g psyllium) and pH (2–10) environments. FTIR and Na NMR analyses of psyllium gels indicated that binding was complex with non-specific multi-site interactions. The potential use of psyllium husk as a binding agent for the reduction of bioavailable sodium was therefore evaluated. The binding of sodium at physiologically relevant conditions (pH 1.2 (stomach) and 6.8 (intestine)) was studied in a gastrointestinal tract (GIT) pH simulated model. Results show consistently high sodium retention (∼50%) across the GIT model and less than 20% loss of bound sodium under the simulated intestinal pH conditions after repeated washings.

Citation

Jimoh, M., MacNaughtan, W., Williams, H., Greetham, D., Linforth, R., & Fisk, I. D. (2016). Sodium ion interaction with psyllium husk (Plantago sp.). Food and Function, 7(9), 4041-4047. https://doi.org/10.1039/C6FO00785F

Journal Article Type Article
Acceptance Date Aug 18, 2016
Online Publication Date Aug 31, 2016
Publication Date Sep 1, 2016
Deposit Date Nov 4, 2016
Publicly Available Date Nov 4, 2016
Journal Food and function
Electronic ISSN 2042-6496
Publisher Royal Society of Chemistry
Peer Reviewed Peer Reviewed
Volume 7
Issue 9
Pages 4041-4047
DOI https://doi.org/10.1039/C6FO00785F
Public URL http://eprints.nottingham.ac.uk/id/eprint/37913
Publisher URL http://pubs.rsc.org/en/Content/ArticleLanding/2016/FO/C6FO00785F#!divAbstract
Copyright Statement Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0
Additional Information : This document is Similarity Check deposited; : I. D. Fisk (ORCID); : I. D. Fisk (ResearcherID); : The Royal Society of Chemistry has an exclusive publication licence for this journal; OPEN ACCESS: This article is freely available. This article is licensed under a Creative Commons Attribution 3.0 Unported Licence (CC BY 3.0); : Single-blind; : Received 27 May 2016; Accepted 18 August 2016; Advance Article published 31 August 2016; Version of Record published 14 September 2016

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Copyright Statement
Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0





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