Studies on the constituents of yellow Cuban propolis: GC-MS determination of triterpenoids and flavonoids.
In this study, on the basis of the information supplied by NMR and HPLC-PDA data, we reported a quali-quantitative GC-MS study of 19 yellow Cuban propolis (YCP) samples collected in different regions of Cuba. The profiles of YCP samples allowed us to define two main types of YCP directly related to their secondary metabolite classes: type A, rich in triterpenic alcohols and with the presence of polymethoxylated flavonoids as minor constituents, and type B, containing acetyl triterpenes as the main constituents. For the first time, triterpenoids belonging to oleanane, lupane, ursane, and lanostane skeletons were reported as major compounds in propolis. Also, the presence of polymethoxylated flavones or flavanones was found for the first time in propolis.
Instituto de Farmacia y Alimentos (IFAL), Universidad de La Habana., La Lisa, Ciudad de La Habana, Cuba.
Ingrid
I
Márquez Hernández
Osmany
O
Cuesta-Rubio
Mercedes
M
Campo Fernández
Arístides
A
Rosado Pérez
Rodny
R
Montes de Oca Porto
Anna Lisa
AL
Piccinelli
Luca
L
Rastrelli
D002851:Chromatography, High Pressure Liquid; D005419:Flavonoids / Q000032:analysis*; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods*; D011429:Propolis / Q000737:chemistry*; D014315:Triterpenes / Q000032:analysis*
D005419:Flavonoids; D014315:Triterpenes; D011429:Propolis