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Ellipsometry analysis of the in vitro adsorption of tea polyphenols onto salivary pellicles
Unilever Oral Care, Port Sunlight Laboratory, Bebington, Wirral, Merseyside, UK.
YKI, Institute for Surface Chemistry, Stockholm, Sweden.
YKI, Institute for Surface Chemistry, Stockholm, Sweden.
YKI, Institute for Surface Chemistry, Stockholm, Sweden.
2004 (English)In: European Journal of Oral Sciences, ISSN 0909-8836, E-ISSN 1600-0722, Vol. 112, no 6, p. 510-515Article in journal (Refereed) Published
Abstract [en]

The adsorption of components from black tea and of purified tea polyphenols onto a whole unstimulated salivary pellicle-like protein layer, formed in vitro on hydroxyapatite discs, was studied by in situ ellipsometry. It was found that components from black tea and the purified polyphenols epicatechin-3-gallate (ECG), epigallocatechin-3-gallate (EGCG) and theaflavin readily adsorbed onto the pellicle. Further investigations showed that under the experimental conditions of this study, no black tea- or purified polyphenol-modified pellicles were eluted by either phosphate buffer or sodium dodecyl sulphate rinses. Therefore, black tea and its polyphenol components are indicated to have a profound effect on in vitro pellicle modification. Similar effects were observed for tannic acid.

Place, publisher, year, edition, pages
Blackwell Munksgaard, 2004. Vol. 112, no 6, p. 510-515
National Category
Biomedical Laboratory Science/Technology
Identifiers
URN: urn:nbn:se:mau:diva-5423DOI: 10.1111/j.1600-0722.2004.00166.xISI: 000225315400007PubMedID: 15560834Scopus ID: 2-s2.0-10344254807Local ID: 2767OAI: oai:DiVA.org:mau-5423DiVA, id: diva2:1402283
Available from: 2020-02-28 Created: 2020-02-28 Last updated: 2024-12-01Bibliographically approved

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