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- Title
Two New Acylated Sucroses From the Roots of Canna indica L. and Their Antioxidant Activity.
- Authors
Luu The Anh; Nguyen Hieu; Do Thi Trang; Bui Huu Tai; Phan Van Kiem
- Abstract
Two new acylated sucroses, (6-O-axetoxyl)-β-d-fructofuranosyl-(2→1)-(6-O-feruloyl-α-d-glucopyranoside (1) and (6-O-axetoxyl)-β-d-fructofuranosyl-(2→1)-(6-O-(E)-p-coumaroyl-α-d-glucopyranoside (2), and four known compounds, 2-(3′,4′-dihydroxyphenyl)-1-propanol-4′-O-[ 4′′′-hydroxy-3"',5′′′-dimethoxybenzoyl-(→6′′)-β-d-fructofuranoside (3), tryptophol glucoside (4), corchonoside C (5), and 2-hydroxy-5-(2-hydroxyethyl) phenyl β-d-fructofuranoside (6), were isolated from the roots of Canna indica L. (Cannaceae). Their structures were determined by extensive analysis of HR-ESI-MS, 1D, and 2D NMR spectral data, as well as by comparison of these with those reported in the literature. Antioxidant activity of compounds 1-6 were evaluated by peroxyl radical absorbance capacity assay. Compounds 1 and 3 neutralized high amounts of peroxyl radical. At a concentration of 1 μM, their ORACROO* values were 3.07 ± 0.15 and 4.27 ± 0.30, respectively, many times greater than that of trolox, which was used as an internal standard. At 10 μM, the peroxyl radical absorbance capacity of compounds 1 and 3 exhibited equivalents to 15.60 ± 0.22 and 24.91 ± 0.43 times the net protection by 1 μM of trolox.
- Subjects
ANTIOXIDANTS; CANNACEAE; ARROWROOT; SUCROSE; GLUCOPYRANOSIDE
- Publication
Natural Product Communications, 2021, Vol 16, Issue 2, p1
- ISSN
1934-578X
- Publication type
Article
- DOI
10.1177/1934578X21991720