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Antioxidative Phenolic Compounds from the Whole Plant of Juncus diastrophanthus
( Sae Rom Park ),( Seo Kwon Yang ),( Dal Rea Ahn ),( Jae Heon Yang ),( Dae Keun Kim ) 한국응용생명화학회 2011 Applied Biological Chemistry (Appl Biol Chem) Vol.54 No.5
Methanol extract of Juncus diastrophanthus (Juncaceae) was found to show potent antioxidant activity. Subsequent activity-guided fractionation of methanol extract of J. diastrophanthus led to the isolation of seven flavonoid compounds, isorhamnetin-3-O-α-L-rhamnopyranosyl(1→6)-β-Dglucopyranoside, narcissin (1), quercetin-3-O-α-L-rhamnopyranosyl(1→6)-β-D-glucopyranoside, rutin (2), kaempferol-3-O-α-L-rhamnopyranosyl(1→6)-β-D-glucopyranoside (3), quercetin (4), quercetin-3-O-α-L-rhamnopyranoside, quercitrin (5), quercetin-3-O-β-D-xylopyranoside (6), and luteolin (7). These compounds were isolated for the first time from this plant. Compounds 4 and 7 showed significant antioxidative effects on 1,1-diphenyl-2-picrylhydrazyl, and compound 5 showed significant riboflavin-originated superoxide and xanthine-originated superoxide quenching activities.
도초,배종진,박정숙,이재혁,김반지,이소연,이은별,안달래,형명명,김대근 한국생약학회 2013 생약학회지 Vol.44 No.4
Five phenolic compounds were isolated from the whole plants of Juncus diastrophanthus (Juncaceae) through repeated column chromatography. Their chemical structures were elucidated as methyl 3,5-di-O-caffeoylquinate (1), luteolin-7-O-β-D-glucopyranoside (2), methyl 4,5-di-O-caffeoylquinate (3), quercetin-3-O-β-D-arabinopyranoside (4), and methyl 3,4-di-O-caffeoylquinate (5) by spectroscopic techniques. These compounds were isolated for the first time from this plant.
Antioxidative Phenolic Compounds from the Whole Plant of Juncus diastrophanthus
Saerom Park,Seokwon Yang,Dalrea Ahn,Jae Heon Yang,김대근 한국응용생명화학회 2011 Applied Biological Chemistry (Appl Biol Chem) Vol.54 No.5
Methanol extract of Juncus diastrophanthus (Juncaceae) was found to show potent antioxidant activity. Subsequent activity-guided fractionation of methanol extract of J. diastrophanthus led to the isolation of seven flavonoid compounds, isorhamnetin-3-O-α-L-rhamnopyranosyl(1→6)-β-Dglucopyranoside,narcissin (1), quercetin-3-O-α-L-rhamnopyranosyl(1→6)-β-D-glucopyranoside,rutin (2), kaempferol-3-O-α-L-rhamnopyranosyl(1→6)-β-D-glucopyranoside (3), quercetin (4), quercetin-3-O-α-L-rhamnopyranoside, quercitrin (5), quercetin-3-O-β-D-xylopyranoside (6), and luteolin (7). These compounds were isolated for the first time from this plant. Compounds 4 and 7 showed significant antioxidative effects on 1,1-diphenyl-2-picrylhydrazyl, and compound 5 showed significant riboflavin-originated superoxide and xanthine-originated superoxide quenching activities.
Antioxidative Phenolic Compounds from the Whole Plant of Juncus diastrophanthus
Park, Sae-Rom,Yang, Seok-Won,Ahn, Dal-Rea,Yang, Jae-Heon,Kim, Dae-Keun The Korean Society for Applied Biological Chemistr 2011 Applied Biological Chemistry (Appl Biol Chem) Vol.54 No.5
Methanol extract of Juncus diastrophanthus (Juncaceae) was found to show potent antioxidant activity. Subsequent activity-guided fractionation of methanol extract of J. diastrophanthus led to the isolation of seven flavonoid compounds, isorhamnetin-3-O-${\alpha}$-L-rhamnopyranosyl(1${\rightarrow}$6)-${\beta}$-D-glucopyranoside, narcissin (1), quercetin-3-O-${\alpha}$-L-rhamnopyranosyl(1${\rightarrow}$6)-${\beta}$-D-glucopyranoside, rutin (2), kaempferol-3-O-${\alpha}$-L-rhamnopyranosyl(1${\rightarrow}$6)-${\beta}$-D-glucopyranoside (3), quercetin (4), quercetin-3-O-${\alpha}$-L-rhamnopyranoside, quercitrin (5), quercetin-3-O-${\beta}$-D-xylopyranoside (6), and luteolin (7). These compounds were isolated for the first time from this plant. Compounds 4 and 7 showed significant antioxidative effects on 1,1-diphenyl-2-picrylhydrazyl, and compound 5 showed significant riboflavin-originated superoxide and xanthine-originated superoxide quenching activities.