Northampton Electronic Collection of Theses and Research

Structure-activity relationships in the hydrophobic interactions of polyphenols with cellulose and collagen

Tang, H. R., Covington, A. D. and Hancock, R. A. (2003) Structure-activity relationships in the hydrophobic interactions of polyphenols with cellulose and collagen. Biopolymers. 70(3), pp. 403-413. 0006-3525.

Item Type: Article
Abstract: Polyphenol interactions with both cellulose and collagen in the solid state have been studied by using chromatography on cellulose and by evaluating the hydrothermal stability of the polyphenol treated sheepskin collagen. Twenty-four polyphenolic compounds were studied, including seven glucose-based gallotannins, five polyalcohol-based gallotannins, and twelve ellagitannins. In the cellulose-polyphenols systems, the polyphenol's affinity to cellulose is positively correlated with their molecular masses, the number of galloyl groups, and their hydrophobicity (logP). The polyphenol treatment increased the hydrothermal stability of collagen samples, and such effects are also positively correlated with the molecular masses, total number of galloyl groups and the hydrophobicity of polyphenols. Ellagitannins showed much weaker interactions with both biopolymers than gallotannins having similar molecular mass, the same number of galloyl groups, and the same number of phenolic hydroxyl groups. It is concluded that, for the polyphenol interactions with both cellulose and collagen, (1) the galloyl group of polyphenols is the functional group; (2) the strength of interactions are positively correlated with molecular size, the number of galloyl groups and the hydrophobicity of polyphenols; (3) the hydrophobic interactions are of great significance; and (4) the interactions are strongly dependent on the flexibility of galloyl groups
Uncontrolled Keywords: polyphenols; hydrolysable tannins; gallotannins; ellagitannins; collagen; cellulose; chromatography; hydrophobic interactions; shrinkage temperature; differential scanning calorimetry
Subjects: T Technology > TS Manufactures > TS967 Chemistry and science of leather
T Technology > TS Manufactures > TS965 Leather technology
Creators: Tang, H R, Covington, Anthony D and Hancock, R A
Funders or Sponsors: Government of the People's Republic of China, British Council
Publisher: John Wiley & Sons
Faculties, Divisions and Institutes: University Faculties, Divisions and Research Centres - OLD > School of Applied Sciences (to 2009) > Leather Technology (to 2009)
Date: 1 November 2003
Date Type: Publication
Page Range: pp. 403-413
Journal or Publication Title: Biopolymers
Volume: 70
Number: 3
Language: English
DOI: https://doi.org/10.1002/bip.10499
ISSN: 0006-3525
Status: Published / Disseminated
Refereed: Yes
URI: http://nectar.northampton.ac.uk/id/eprint/60

Actions (login required)

Edit Item Edit Item