ANTIOXIDATIVE ACTIVITY OF ASTRAGALUS MEMBRANACEUS (FABACEAE) ROOT AND AERIAL PARTS EXTRACTS IN TWO MODEL SYSTEMS
Comparative research of antioxidative properties of extracts of root and aerial parts of Astragalus membranaceus (Fish.) Bunge by a chemiluminescent method was held in citrate-phosphate-luminol and yolk-lipoprotein model systems. It is established that both extracts exert the antioxidative effect. Thus, extract of aerial parts of A. membranaceus is more effective radical scavenger in citrate-phosphate-luminol model system, while the most of antioxidative activity of A. membranaceus root extract is expressed in yolk-lipoprotein model system in interaction with lipid radicals. Antioxidative activity of the both extracts in different model systems varies in dose response. The optimum extract concentration in citrate-phosphate- luminol model system is 0.1 mg/ml, and in yolk-lipoprotein model system - 0.5 mg/ml.