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

被引:17
作者
Esteban, A [1 ]
Zapata, JM [1 ]
Casano, L [1 ]
Martín, M [1 ]
Sabater, B [1 ]
机构
[1] Univ Alcala, Dept Biol Vegetal, Madrid 28871, Spain
关键词
ageing; Aloe barbadensis; Asphodelaceae; peroxidase; reactive oxygen species; skin photo-damage;
D O I
10.1055/s-2000-9876
中图分类号
Q94 [植物学];
学科分类号
071001 [植物学];
摘要
A basic peroxidase (EC 1.11.1.7) (pl around 9.0) has been identified in commercial 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) for activity and the low K-M for H2O2 (0.14 mM) suggest that, when topically applied, Aloe peroxidase may scavenge H2O2 in skin surface.
引用
收藏
页码:724 / 727
页数:4
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