TY - JOUR
T1 - Antioxidant properties and phenolic composition of wood betony (Betonica officinalis L., syn. Stachys officinalis L.)
AU - Sliumpaite, Irma
AU - Venskutonis, Petras Rimantas
AU - Murkovic, Michael
AU - Ragzinskiene, O.
PY - 2013
Y1 - 2013
N2 - Antioxidant properties and composition of phenolic active constituents in wood betony (Stachys officinalis) extracts, successively isolated with acetone and methanol, were studied by the batch and the on-line radical scavenging assays. The content of total phenolics was higher in acetone extract (the yield 5.6%) by 26% than in methanol extract (the yield 18.6%), however the latter extract was stronger radical scavenger in DPPHradical dot and ABTS+radical dot assays: 714 ± 83 μM vs 558 ± 33 μM trolox equivalents per g of dry extract. The main compounds possessing antioxidant activity in the extracts of woody betony assessed by the on-line HPLC–DPPHradical dot method and preliminary identified by HPLC/UV/MS and HPTLC analysis were chlorogenic acid, phenylethanoid glycosides and hydroxycinnamic acid derivative.
AB - Antioxidant properties and composition of phenolic active constituents in wood betony (Stachys officinalis) extracts, successively isolated with acetone and methanol, were studied by the batch and the on-line radical scavenging assays. The content of total phenolics was higher in acetone extract (the yield 5.6%) by 26% than in methanol extract (the yield 18.6%), however the latter extract was stronger radical scavenger in DPPHradical dot and ABTS+radical dot assays: 714 ± 83 μM vs 558 ± 33 μM trolox equivalents per g of dry extract. The main compounds possessing antioxidant activity in the extracts of woody betony assessed by the on-line HPLC–DPPHradical dot method and preliminary identified by HPLC/UV/MS and HPTLC analysis were chlorogenic acid, phenylethanoid glycosides and hydroxycinnamic acid derivative.
U2 - 10.1016/j.indcrop.2013.08.024
DO - 10.1016/j.indcrop.2013.08.024
M3 - Article
SN - 1872-633X
VL - 50
SP - 715
EP - 722
JO - Industrial Crops and Products
JF - Industrial Crops and Products
ER -