HYDROXYL RADICAL SCAVENGING ABILITY OF BACTERIORUBERIN

Authors
SAITO T MIYABE Y IDE H YAMAMOTO O
Citation
T. Saito et al., HYDROXYL RADICAL SCAVENGING ABILITY OF BACTERIORUBERIN, Radiation physics and chemistry, 50(3), 1997, pp. 267-269
Citations number
11
Categorie Soggetti
Nuclear Sciences & Tecnology","Chemistry Physical","Physics, Atomic, Molecular & Chemical
Journal title
Radiation physics and chemistry → ACNP
ISSN journal
0969806X
Volume
50
Issue
3
Year of publication
1997
Pages
267 - 269
Database
ISI
SICI code
0969-806X(1997)50:3<267:HRSAOB>2.0.ZU;2-L
Abstract
A red carotenoid pigment, bacterioruberin, was extracted from Rubrobac ter radiotolerans. The OH scavenging effect of this pigment was studie d using a system of thymine degradation and compared with those of cys teine and beta-carotene. Thymine solution (5 x 10(-4) mol/dm(3) with 0 .2% SDS buffered at pH 7.0) was irradiated with Co-60 gamma-rays in th e presence and absence of the scavengers. We found that the dose reduc ing factor (5.3) of bacterioruberin is much higher than that (2.5) of cysteine and beta-carotene. (C) 1997 Elsevier Science Ltd.