beta-carotene and flavan-3-ol

beta-carotene has been researched along with flavan-3-ol* in 1 studies

Other Studies

1 other study(ies) available for beta-carotene and flavan-3-ol

Article	Year
Antioxidant flavan-3-ols and flavonol glycosides from Maytenus aquifolium. Phytotherapy research : PTR, 2003, Volume: 17, Issue:8 TLC autographic assay revealed, in the EtOAc extract obtained from leaves and root bark of Maytenus aquifolium (Celastraceae), the presence of fi ve compounds exhibiting antioxidant properties towards beta-carotene. They were isolated and identified as epigallocatechin (1), (+) ouratea-catechin (2), proanthocyanidin (3), kaempferol 3-O-alpha-L-rhamnopyranosyl (1-->6)-O-[beta-D-glucopyranosyl (1-->3)-O-alpha-L-rhamnopyranosyl-(1-->2)]-O-beta-D-glucopyranosyl (4) and quercetin 3-O-alpha-L-rhamnopyranosyl (1-->6)-O-[beta-D-glucopyranosyl (1-->3)-O-alpha-L-rhamnopyranosyl-(1-->2)]-O-beta-D-glucopyranosyl (5). The isolates were investigated for their redox properties using cyclic voltammetry and for their radical scavenging abilities through spectrophotometric assay on the reduction of 2,2-diphenyl-pycryl hydrazyl (DPPH). These results were correlated to the inhibition of beta-carotene bleaching on TLC autographic assay and to structural features of the flavonoids. Topics: Antioxidants; beta Carotene; Biphenyl Compounds; Electrochemistry; Flavonoids; Flavonols; Glycosides; Humans; Maytenus; Phytotherapy; Picrates; Plant Extracts; Plant Leaves; Plant Roots	2003

Article

Year

Antioxidant flavan-3-ols and flavonol glycosides from Maytenus aquifolium.

Phytotherapy research : PTR, 2003, Volume: 17, Issue:8

TLC autographic assay revealed, in the EtOAc extract obtained from leaves and root bark of Maytenus aquifolium (Celastraceae), the presence of fi ve compounds exhibiting antioxidant properties towards beta-carotene. They were isolated and identified as epigallocatechin (1), (+) ouratea-catechin (2), proanthocyanidin (3), kaempferol 3-O-alpha-L-rhamnopyranosyl (1-->6)-O-[beta-D-glucopyranosyl (1-->3)-O-alpha-L-rhamnopyranosyl-(1-->2)]-O-beta-D-glucopyranosyl (4) and quercetin 3-O-alpha-L-rhamnopyranosyl (1-->6)-O-[beta-D-glucopyranosyl (1-->3)-O-alpha-L-rhamnopyranosyl-(1-->2)]-O-beta-D-glucopyranosyl (5). The isolates were investigated for their redox properties using cyclic voltammetry and for their radical scavenging abilities through spectrophotometric assay on the reduction of 2,2-diphenyl-pycryl hydrazyl (DPPH). These results were correlated to the inhibition of beta-carotene bleaching on TLC autographic assay and to structural features of the flavonoids.

Topics: Antioxidants; beta Carotene; Biphenyl Compounds; Electrochemistry; Flavonoids; Flavonols; Glycosides; Humans; Maytenus; Phytotherapy; Picrates; Plant Extracts; Plant Leaves; Plant Roots

2003