Peroxidase activity in Aloe barbadensis commercial gel: Probable role in skin protection

Authors
Esteban, A Zapata, JM Casano, L Martin, M Sabater, B
Citation
A. Esteban et al., Peroxidase activity in Aloe barbadensis commercial gel: Probable role in skin protection, PLANTA MED, 66(8), 2000, pp. 724-727
Citations number
21
Categorie Soggetti
Pharmacology & Toxicology
Journal title
PLANTA MEDICA
ISSN journal
00320943 → ACNP
Volume
66
Issue
8
Year of publication
2000
Pages
724 - 727
Database
ISI
SICI code
0032-0943(200012)66:8<724:PAIABC>2.0.ZU;2-9
Abstract
A basic peroxidase (EC 1.11.1.7) (pl around 9.0) has been identified in com mercial gel of Aloe barbadensis. In vivo, the activity is localised in the vascular system of inner aqueous leaf parenchyma. Some relevant properties of this basic peroxidase of Aloe have been investigated in leaf extract and in commercial gel where it is notably stable. The acid optimum pH (5.0) fo r activity and the low K-M for H2O2 (0.14 mM) suggest that, when topically applied, Aloe peroxidase may scavenge H2O2 in skin surface.