Binding of dietary polyphenols to cellulose: structural and nutritional aspects

Phan, Anh Dao T., Netzel, Gabriele, Wang, Dongjie, Flanagan, Bernadine M., D'Arcy, Bruce R. and Gidley, Michael J. (2015) Binding of dietary polyphenols to cellulose: structural and nutritional aspects. Food Chemistry, 171 388-396. doi:10.1016/j.foodchem.2014.08.118


Author Phan, Anh Dao T.
Netzel, Gabriele
Wang, Dongjie
Flanagan, Bernadine M.
D'Arcy, Bruce R.
Gidley, Michael J.
Title Binding of dietary polyphenols to cellulose: structural and nutritional aspects
Journal name Food Chemistry   Check publisher's open access policy
ISSN 1873-7072
0308-8146
Publication date 2015-03-15
Year available 2014
Sub-type Article (original research)
DOI 10.1016/j.foodchem.2014.08.118
Open Access Status
Volume 171
Start page 388
End page 396
Total pages 9
Place of publication Amsterdam, Netherlands
Publisher Elsevier
Collection year 2015
Language eng
Abstract The interactions between polyphenols and plant fibres play an important role in controlling the release of phenolic compounds from food matrices for absorption in the gastrointestinal tract. This study probed the molecular interactions of diverse polyphenols with cellulose fibres by using a pure cellulose-producing bacterial model. Alkali treatment of bacterial cellulose was an effective method for obtaining a high purity cellulose model for study of polyphenol binding. Representatives of different polyphenol classes all bound to cellulose spontaneously, rapidly, and to comparable extents (up to 60% w/w of cellulose). Langmuir binding isotherms were applied to determine quantitative aspects of the adsorption at equilibrium. The study indicated that binding was similar on a molar basis for ferulic acid, gallic acid, catechin and cyanidin-3-glucoside (but lower for chlorogenic acid), with the native charge of polyphenols a secondary factor in the interactions between polyphenols and cellulose.
Keyword Non-covalent interactions
Langmuir binding isotherm
Anthocyanins
Phenolic acids
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Published online ahead of print 8 Sep 2014

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Agriculture and Food Sciences
Official 2015 Collection
Centre for Nutrition and Food Sciences Publications
 
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