Studies on chemical constituents from bee-collected rape pollen.
- Author:
Juanli GUO
1
;
Peicheng ZHANG
;
Zhiwu ZHANG
Author Information
- Publication Type:Journal Article
- MeSH: Animals; Bees; physiology; Brassica napus; chemistry; physiology; Coumaric Acids; chemistry; Dextrans; chemistry; Glucosides; chemistry; Molecular Structure; Plant Extracts; pharmacology; Pollen; chemistry; physiology; Propionates; Sitosterols; chemistry
- From: China Journal of Chinese Materia Medica 2009;34(10):1235-1237
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo study the chemical constituents of the bee-collected rape pollen.
METHODThe compounds were isolated by column chromatography on silica gel; Sephadex LH-20 and C18. Their structures were elucidated on the basis of spectral analysis.
RESULTNine compounds were isolated from the bee-collected rape pollen and the structures of them were kaemferol-3-O-beta-D-glucosyl-(2-->1)-beta-D-glucoside (1), kaemferol-3,4'-di-O-beta-D-glucoside (2), quercetin-3-O-beta-D-glucosyl-(2-->1)-beta-D-glucoside (3), nicotinic acid (4), nicotinamide (5), trans-p-coumaric acid-4-O-beta-D-glucopyranoside (6), kaemferol (7), beta-sitosterol (8) and 5-hydroxymethylfurfural (9).
CONCLUSIONCompounds 1-6 were isolated from the bee-collected rape pollen for the first time.
