fulltext.study @t Gmail

Specific effects of single antioxidants in the lipid peroxidation caused by nano-titania used in sunscreen lotions

Paper ID Volume ID Publish Year Pages File Format Full-Text
30350 44471 2009 6 PDF Available
Title
Specific effects of single antioxidants in the lipid peroxidation caused by nano-titania used in sunscreen lotions
Abstract

The effect of some additives, phenylalanine, ascorbyl palmitate and sodium ascorbyl phosphate on the oxidation of linoleic acid and porcine ear skin induced by UV irradiation was investigated, in the absence and in the presence of variously uncoated and coated titania powders. Such additives have, on the one hand, a scavenging activity toward the oxidizing species photogenerated by TiO2, and on the other one an inhibitory effect toward UVB-induced peroxidation. Sodium ascorbyl phosphate and ascorbyl palmitate displayed a stronger antioxidant effect than phenylalanine toward linoleic acid peroxidation. On porcine skin all the three molecules exhibited both antiradical and antioxidant activity. Their protective effect against peroxidation was higher with porcine skin lipids than with linoleic acid, referable to the chemical differences in the two lipid substrates.

Keywords
TiO2 nanoparticles; Linoleic acid; Porcine skin; UVB irradiation; Phenylalanine; Ascorbic acid derivatives
First Page Preview
Specific effects of single antioxidants in the lipid peroxidation caused by nano-titania used in sunscreen lotions
Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology B: Biology - Volume 96, Issue 2, 3 August 2009, Pages 130–135
Authors
, , , , , , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering