Betalains from Christmas cactus.
The presence of 14 betalain pigments have been detected by their characteristic spectral properties in flower petals of Christmas cactus (Schlumbergera x buckleyi). Along with the known vulgaxanthin I, betalamic acid, betanin and phyllocactin (6'-O-malonylbetanin), the structure of a new phyllocactin-derived betacyanin was elucidated by various spectroscopic techniques and carbohydrate analyses as betanidin 5-O-(2'-O-beta-D-apiofuranosyl-6'-O-malonyl)-beta-D-glucopyranosid e. Among the more complex betacyanins occurring in trace amounts, the presence of a new diacylated betacyanin ¿betanidin 5-O-[(5"-O-E-feruloyl)-2'-O-beta-D- apiofuranosyl-6'-O-malonyl)]-beta-D-glucopyranoside¿ has been ascertained. Furthermore, the accumulation of betalains during flower development and their pattern in different organs of the flower has been examined.
Kobayashi
N
N
Abteilung Sekundärstoffwechsel, Leibniz-Institut für Pflanzenbiochemie, Halle, Saale, Germany.
Schmidt
J
J
Nimtz
M
M
Wray
V
V
Schliemann
W
W
D050858:Betalains; D002851:Chromatography, High Pressure Liquid; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D010944:Plants / Q000737:chemistry*; D000644:Quaternary Ammonium Compounds / Q000737:chemistry / Q000302:isolation & purification*
D000644:Quaternary Ammonium Compounds; D050858:Betalains