In:
Natural Product Communications, SAGE Publications, Vol. 4, No. 12 ( 2009-12), p. 1934578X0900401-
Abstract:
One new flavonoid glycoside, 3-O-kaempferol 4-O-(galloyl)-β-D-glucoside, one new bergenin derivative, 11-0-caffeoylbergenin, along with other known flavonoids and phenolic derivatives, were isolated from the leaves of Securinega virosa. Their structures were established on the basis of detailed spectral analysis. In vitro biological analysis of the isolated compounds showed that they were able to quench DPPH radicals and had a direct scavenging activity on superoxide anion. Kaempferol 3-O-(4-galloyl)-β-D-glucopyranoside (1), 11-0-caffeoylbergenin (2), and glucogallin (6) exhibited the highest antioxidant capacity, being also able to modulate hydroxyl radical formation more efficiently than the other compounds, acting as direct hydroxyl radical scavengers and chelating iron.
Type of Medium:
Online Resource
ISSN:
1934-578X
,
1555-9475
DOI:
10.1177/1934578X0900401207
Language:
English
Publisher:
SAGE Publications
Publication Date:
2009
detail.hit.zdb_id:
2430442-6
SSG:
15,3
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