Antioxidant, lipid peroxidation inhibition and free radical scavenging efficacy of a diterpenoid compound sugiol isolated from Metasequoia glyptostroboides
- Antioxidant, lipid peroxidation inhibition and free radical scavenging efficacy of a diterpenoid compound sugiol isolated from Metasequoia glyptostroboides
- 비벡바지파이; 아제이샤마; 강선철[강선철]; 백광현
- MIKI EX HU; IN-VITRO ANTIOXIDANT; LEAF ESSENTIAL OIL; CHEMICAL-COMPOSITION; EXTRACTS; FLAVONOIDS; CONSTITUENTS; PATHOGENS; OXIDATION
- Issue Date
- ELSEVIER SCI LTD
- ASIAN PACIFIC JOURNAL OF TROPICAL MEDICINE, v.7, no.1, pp.9 - 15
- Objective: To investigate the antioxidant efficacy of a biologically active diterpenoid compound sugiol isolated from Metasequoia glyptostroboides (M. glyptostroboides) in various antioxidant models. Methods: An abietane type diterpenoid sugiol, isolated from ethyl acetate extract of M. glyptostroboides cones, was analyzed for its antioxidant efficacy as reducing power ability and lipid peroxidation inhibition as well as its ability to scavenge free radicals such as 1,1-diphenyl-2-pieryl hydrazyl, nitric oxide, superoxide and hydroxyl radicals. Results: The sugiol showed significant and concentration-dependent antioxidant and free radical scavenging activities. Consequently, the sugiol exerted lipid peroxidation inhibitory effect by 76.5% as compared to alpha -tocopherol (80.13%) and butylated hydroxyanisole (76.59%). In addition, the sugiol had significant scavenging activities of 1,1- diphenyl-2-pieryl hydrazyl, nitric oxide, superoxide and hydroxyl free radicals in a concentration-dependent manner by 78.83%, 72.42%, 72.99% and 85.04%, when compared to the standard compound ascorbic acid (81.69%, 74.62%, 73.00% and 73.79%) and alpha -tocopherol/butylated hydroxyanisole (84.09%, 78.61%, 74.45% and 70.02%), respectively. Conclusions: These findings justify the biological and traditional uses of M. glyptostroboides or its secondary metabolites as confirmed by its promising antioxidant efficacy.
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