Found 1 publication. Displayed publication 1
Expand all publications       Show all as text (SweetDB notation)
1. (Article ID: 12175)
 
Fossen T, Slimestad R, Øvstedal DO, Andersen ØM
Covalent anthocyanin-flavonol complexes from flowers of chive, Allium schoenoprasum
Phytochemistry 54(3) (2000) 317-323
 

The structures of eight anthocyanins have been determined in acidified methanolic extract of pale-purple flowers of chive, Allium schoenoprasum. Four of them have been identified as the anthocyanin-flavonol complexes (cyanidin 3-O-β-glucosideAII) (kaempferol 3-O-(2-O-β-glucosylFIII-β-glucosideFII)-7-O-β-glucosiduronic acidFIV) malonateAIII (AII-6→AIII-1, FIV-2→AIII-3), 1, (cyanidin 3-O-(3-O-acetyl-β-glucosideAII) (kaempferol 3-O-(2-O-β-glucosylFIII-β-glucosideFII)-7-O-β-gl ucosiduronic acidFIV) malonateAIII (AII-6→AIII-1, FIV-2→AIII-3), 2, and their 7-O-(methyl-O-β-glucosiduronateFIV) analogous, 3 and 4. Pigments 1 and 2 are the first final identification of covalent complexes between an anthocyanin and a flavonol, while 3 and 4 are formed during the isolation process. The other four anthocyanins (5-8) were found to be the 3-acetylglucoside, 3-glucoside, 3-(6-malonylglucoside) and 3-(3,6-dimalonylglucoside) of cyanidin. The three latter pigments have earlier been identified as the major anthocyanins of the chive stem. The covalent anthocyanin-flavonol complexes show intramolecular association between the anthocyanidin (cyanidin) and flavonol (kaempferol) units, which influence the colour.

acetylation, Liliaceae, flower colour, Allium schoenoprasum, covalent anthocyanin-flavonol complexes, (cyanidin 3-glucoside)(kaempferol 3-(2-glucosylglucoside)-7-glucosiduronic acid) malonate, co-pigmentation, intramolecular association

The publication contains the following compound(s):
 

Expand this publication

Resort publications by:

New query Export IDs Home Help

Execution: <1 sec