TY - JOUR
T1 - Antioxidant and free radical scavenging activities of 5,7,3′- trihydroxy-3,6,4′-trimethoxyflavone from Brickellia veronicaefolia
AU - Pérez Gutierrez, R. M.
AU - Vargas S., R.
AU - Martinez M., F. J.
AU - Cordova R., I.
PY - 2004/5
Y1 - 2004/5
N2 - The antioxidant and antiradical activities of 5,7,3′-trihydroxy-3,6, 4′-trimethoxyflavone of centaureidin isolated and characterized from Brickellia veronicaefolia were elucidated by heat-induced oxidation in a β-carotene and linoteic acid system and by the 1,1-diphenyl-2- picrylhydrazyl decoloration test. The centaureidin (32.1%) exhibited antioxidative activity less than that of BHT (95.5%) and α-tocopherol (95.9%) on oxidation in a β-carotene and linoleic acid system. A moderate antiradical effect (47.6%) compared with BHT (96.7%) and α-tocopherol (94.6%) in DPPH decoloration test was found.
AB - The antioxidant and antiradical activities of 5,7,3′-trihydroxy-3,6, 4′-trimethoxyflavone of centaureidin isolated and characterized from Brickellia veronicaefolia were elucidated by heat-induced oxidation in a β-carotene and linoteic acid system and by the 1,1-diphenyl-2- picrylhydrazyl decoloration test. The centaureidin (32.1%) exhibited antioxidative activity less than that of BHT (95.5%) and α-tocopherol (95.9%) on oxidation in a β-carotene and linoleic acid system. A moderate antiradical effect (47.6%) compared with BHT (96.7%) and α-tocopherol (94.6%) in DPPH decoloration test was found.
KW - 5,7,3′-trihydroxy-3,6, 4′-trimethoxyflavone
KW - Antioxidant activity
KW - Brickellia veronicaefolia
KW - Centaureidin
UR - http://www.scopus.com/inward/record.url?scp=2942597740&partnerID=8YFLogxK
U2 - 10.1002/ptr.1445
DO - 10.1002/ptr.1445
M3 - Artículo
C2 - 15174007
SN - 0951-418X
VL - 18
SP - 428
EP - 430
JO - Phytotherapy Research
JF - Phytotherapy Research
IS - 5
ER -