School of Studies in Botany, Jiwaji University, Gwalior-474 011.
1Department of Botany, CCS University, Meerut-250 005.
The flavonoid spectrum ofintact mature fully open Catharanthus roseus petals was scanned through HPLC mass spectrometry for identification and characterization of the specific Davonoids existing in these petals. Besides already reported petunidin, malvidin, hirsutidin trihydrates or glycosides, quercetin and kaempferol, the presence of tricin, a flavone, is being reported for the first time. Interestingly enough 540 nm absorbance peak could resolve only flavones whereas 340nm and 266nm absorbance peaks resolved anthocyanins. Its appearance in 540 nm absorbance peak fractions suggests it to be a probable copigment in this flower.
Catharantflus roseus, flavonoids, tricin
