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 |
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