Polysaccharides and Bioactive Phenolics from Aconitum septentrionale Roots.
Chem Biodivers
; 20(8): e202300161, 2023 Aug.
Article
in En
| MEDLINE
| ID: mdl-37337851
ABSTRACT
Aconitum septentrionale is known to contain toxic diterpene alkaloids, while other bioactive compounds in the plant remain unclear. The aim of this study was to explore the phenolic compounds and polysaccharides from the water extract of A. septentrionale roots. Fifteen phenolic compounds were isolated and identified by NMR and MS, including fourteen known and one new dianthramide glucoside (2-[[2-(ß-D-glucopyranosyloxy)-5-hydroxybenzoyl]amino]-4,5-dihydroxybenzoic acid methyl ester, 14). One neutral (complex of glucans with minor amounts of mannans) and two acidic polysaccharide fractions (complexes of pectic polysaccharides and glucans) were also obtained. Hydroxytyrosol (1), hydroxytyrosol-1-O-ß-glucoside (2) and bracteanolide A (7) inhibited the release of nitric oxide by dendritic cells. Magnoflorine (8) and 2-[[2-(ß-D-glucopyranosyloxy)-5-hydroxybenzoyl]amino]-5-hydroxybenzoic acid methyl ester (12) inhibited 15-lipoxygenase, and bracteanolide A (7) was a moderate inhibitor of xanthine oxidase. This study is the first to describe the diversity of phenolics and polysaccharides from A. septentrionale and their anti-inflammatory and anti-oxidant activities.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Aconitum
Language:
En
Journal:
Chem Biodivers
Journal subject:
BIOQUIMICA
/
QUIMICA
Year:
2023
Document type:
Article
Affiliation country: