Vivek K Bajpai1, Ajay Sharma1, Sun Chul Kang2, Kwang-Hyun Baek3. 1. School of Biotechnology, Yeungnam University, Gyeongsan, Gyeongbook 712-749, Republic of Korea. 2. Department of Biotechnology, Daegu University, Gyeongsan, Gyeongbook 712-714, Republic of Korea. Electronic address: sckang@daegu.ac.kr. 3. School of Biotechnology, Yeungnam University, Gyeongsan, Gyeongbook 712-749, Republic of Korea. Electronic address: khbaek@ynu.ac.kr.
Abstract
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-picryl 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 α-tocopherol (80.13%) and butylated hydroxyanisole (76.59%). In addition, the sugiol had significant scavenging activities of 1,1-diphenyl-2-picryl 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 α-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.
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 diterpenoidsugiol, 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-picryl 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 α-tocopherol (80.13%) and butylated hydroxyanisole (76.59%). In addition, the sugiol had significant scavenging activities of 1,1-diphenyl-2-picryl 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 α-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.
Authors: Cintia Miranda Dos Santos; Jaqueline Ferreira Campos; Helder Freitas Dos Santos; José Benedito Perrella Balestieri; Denise Brentan Silva; Kely de Picoli Souza; Carlos Alexandre Carollo; Leticia M Estevinho; Edson Lucas Dos Santos Journal: Oxid Med Cell Longev Date: 2017-10-26 Impact factor: 6.543