Examination of the chemical composition of propolis I. Isolation and identification of the 3,4-dihydroxycinnamic acid (caffeic acid) from propolis.
D001516:Bees; D002626:Chemistry, Pharmaceutical; D002854:Chromatography, Paper; D002934:Cinnamates / Q000302:isolation & purification*; D012116:Resins, Plant / Q000032:analysis*; D013057:Spectrum Analysis; D014466:Ultraviolet Rays
D002934:Cinnamates; D012116:Resins, Plant