Cynaroside (also known as luteoloside) is a
flavone
Flavone is an organic compound with the formula . A white solid, flavone is a derivative of chromone with a phenyl (Ph) substituent adjacent to the ether group. The compound is of little direct practical importance, but substituted derivatives, ...
, a flavonoid-like chemical compound. It is a 7-O-
glucoside
A glucoside is a glycoside that is chemically derived from glucose. Glucosides are common in plants, but rare in animals. Glucose is produced when a glucoside is hydrolysed by purely chemical means, or decomposed by fermentation or enzymes.
Th ...
of
luteolin
Luteolin is a flavone, a type of flavonoid, with a yellow crystalline appearance.
Luteolin is the main yellow dye from the '' Reseda luteola'' plant, used for dyeing since at least the first millennium B.C. Luteolin was first isolated in pure f ...
.
Natural occurrences
It can be found in ''
Ferula varia'' and ''
F. foetida'' in ''
Campanula persicifolia'' and ''
C. rotundifolia'', in the bamboo ''
Phyllostachys nigra
''Phyllostachys nigra'', common name, commonly known as black bamboo or purple bamboo ( zh, 紫竹), is a species of bamboo, native plant, native to Hunan, Hunan Province of China, and is widely cultivated elsewhere.
Growing up to tall by broa ...
'', and in ''
Teucrium gnaphalodes''.
; In food
It can be found in
dandelion
''Taraxacum'' () is a genus of flowering plants in the family Asteraceae, which consists of species commonly known as dandelions. The scientific and hobby study of the genus is known as taraxacology. The genus has a near-cosmopolitan distribu ...
(the highest concentration in the flowers,
but also in the roots) and in ''
Cynara scolymus
The artichoke (''Cynara cardunculus'' var. ''scolymus''),Rottenberg, A., and D. Zohary, 1996: "The wild ancestry of the cultivated artichoke." Genet. Res. Crop Evol. 43, 53–58. also known by the other names: French artichoke, globe artichoke, ...
'' (artichoke).
Metabolism
Flavone 7-O-beta-glucosyltransferase adds a glucose to
luteolin
Luteolin is a flavone, a type of flavonoid, with a yellow crystalline appearance.
Luteolin is the main yellow dye from the '' Reseda luteola'' plant, used for dyeing since at least the first millennium B.C. Luteolin was first isolated in pure f ...
.
A
cynaroside 7-O-glucosidase has been identified in the artichoke.
Spectral data
References
{{flavone
Flavone glucosides
Catechols