"Cyclamen Red" colors based on a macrocyclic anthocyanin in carnation flowers.
The "cyclamen" red (or pink) colors in carnation flowers-cultivars Red Rox and eight others-are based on the presence of a new macrocyclic anthocyanin, pelargonidin 3,5-di-O-beta-glucoside(6' ', 6' "-malyl diester) identified by spectroscopic methods. The instability of the bridging malyl group with sugars in acidic medium readily causes the formation of the opened ring form, 3-O-(6' '-O-malylglucoside)-5-O-glucoside. The issue of cyclamen colors based in carnations on this original acylated pelargonidin derivative simulating those based on simpler cyanidin glycosides in Rosa cultivars is discussed using CIELAB colorimetric coordinates.
Gonnet
J F
JF
Laboratoire BMP and Centre de RMN, UCB-ESCPE, UPRESA CNRS 5012, Université Claude-Bernard Lyon I, 43 boulevard du 11 Novembre 1918, F-69622 Villeurbanne, France. gonnet@cismsun.univ-lyon1.fr
Fenet
B
B
D000872:Anthocyanins / Q000302:isolation & purification*; D005419:Flavonoids / Q000302:isolation & purification*; D008956:Models, Chemical; D010936:Plant Extracts / Q000737:chemistry*
D000872:Anthocyanins; D005419:Flavonoids; D010936:Plant Extracts; C082179:pelargonidin-3,5-diglucoside