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REVISTA DE CHIMIE
Cite as: Rev. Chim.
https://doi.org/10.37358/Rev.Chim.1949

OSIM Nr. R102355
ISSN 0034-7752
ISSN 2668-8212 (Online)
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Revista de Chimie, Volume 58, Issue 1, pp. (2007)




Evaluation of Stability of Some Natural and Synthesis Antioxidants in Dermato-cosmetics with Anti-ageing Effect

Abstract:

Natural or synthetic antioxidants are used in the formula of dermatocosmetics, which contain components with different unsaturation degree and are exposed to auto oxidative / oxidative, to conserve the initial properties and maintain their stability in time. The paper presents the behavior of some common antioxidants - vitamin A, C, E and their derivatives (tocopherol acetate, ascorbyl phosphate), coenzyme Q10 - in destructive conditions. The stability of the antioxidants, exposed at temperatures in the field 40 - 800C and in the presence of peroxidic radicals, was evaluated based on the changes of antioxidant activity determined through chemiluminescence, on the structural changes determined through FT-IR and UV-VIS-NIR spectroscopy and, in some cases, on the changes of chromatic characteristics. Keywords: antioxidants, vitamins, ageing, chemiluminescence, FT-IR , UV-VIS-NIR spectroscopy

Issue: 2007 Volume 58, Number 1
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