Adsorption from Black Tea and Red Wine onto IN Vitro Salivary Pellicles Studied by Ellipsometry

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Adsorption from Black Tea and Red Wine onto IN Vitro Salivary Pellicles Studied by Ellipsometry

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Publication Article, peer reviewed scientific
Title Adsorption from Black Tea and Red Wine onto IN Vitro Salivary Pellicles Studied by Ellipsometry
Author(s) Joiner, Andrew ; Arnebrant, Thomas ; Malmsten, M ; Elofsson, U.M.
Date 2003
English abstract
The adsorption of black tea and red wine components onto a pellicle-like protein layer formed in vitro by adsorption from whole unstimulated saliva on hydroxyapatite discs were studied by in situ ellipsometry. It was found that components from black tea readily adsorbed to the pellicle. Subsequent exposure to saliva led to further adsorption of salivary components to give an overall increase in the amounts adsorbed. The amounts adsorbed increased still further following a third tea and saliva exposure. Components of red wine gave significantly greater amounts of adsorption to the pellicle than black tea. The adsorption of components of black tea gave a concomitant increase in colour or stain as measured by a reflectance chromameter. In all cases, the black tea- and red wine-modified pellicles were not eluted by either phosphate buffer or sodium dodecyl sulphate (SDS) rinses. Thus, black tea and red wine components have been shown to have a profound effect on in vitro pellicle maturation, causing thickened layers of stained material to build up, which are not readily removed.
DOI http://dx.doi.org/10.1034/j.1600-0722.2003.00073.x (link to publisher's fulltext)
Publisher Blackwell Publisher
Host/Issue European journal of oral sciences;5
Volume 111
ISSN 0909-8836
Pages 417-422
Language eng (iso)
Subject(s) adsorption
extrinsic stain
hydroxyapatite
salivary proteins
ellipsometry
Handle http://hdl.handle.net/2043/639 (link to this page)

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