Garcinol, a polyisoprenylated benzophenone derivative, was purified from
Garcinia indica
fruit rind,
and its antioxidative activity, chelating activity, free radical scavenging activity, and anti-glycation
activity were studied. Garcinol exhibited moderate antioxidative activity in the micellar linoleic
acid peroxidation system and also exhibited chelating activity at almost the same level as citrate.
It also showed nearly 3 times greater DPPH (1,1-diphenyl-2-picrylhydrazyl) free radical scavenging
activity than
DL
-
R
-
tocopherol by weight in aqueous ethanol solution. In a phenazine methosulfate/
NADH
-
nitroblue tetrazolium system, garcinol exhibited superoxide anion scavenging activity and
suppressed protein glycation in a bovine serum albumin/fructose system. Thus, garcinol might be
beneficial as a potent antioxidant and a glycation inhibitor under specified conditions.
Garcinol, a polyisoprenylated benzophenone derivative, was purified fromGarcinia indicafruit rind,and its antioxidative activity, chelating activity, free radical scavenging activity, and anti-glycationactivity were studied. Garcinol exhibited moderate antioxidative activity in the micellar linoleicacid peroxidation system and also exhibited chelating activity at almost the same level as citrate.It also showed nearly 3 times greater DPPH (1,1-diphenyl-2-picrylhydrazyl) free radical scavengingactivity thanDL-R-tocopherol by weight in aqueous ethanol solution. In a phenazine methosulfate/NADH-nitroblue tetrazolium system, garcinol exhibited superoxide anion scavenging activity andsuppressed protein glycation in a bovine serum albumin/fructose system. Thus, garcinol might bebeneficial as a potent antioxidant and a glycation inhibitor under specified conditions.
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