Bioactive constituents of brazilian red propolis.
In a new propolis type, red Brazilian propolis, 14 compounds were identified (six of them new for propolis), among them simple phenolics, triterepenoids, isoflavonoids, prenylated benzophenones and a naphthoquinone epoxide (isolated for the first time from a natural source). Three of the major components demonstrated significant antimicrobial activity, and two (obtained as inseparable mixture) possessed radical scavenging activity against 1,1-diphenyl-2-picrylhydrazyl (DPPH).
Trusheva
Boryana
B
Popova
Milena
M
Bankova
Vassya
V
Simova
Svetlana
S
Marcucci
Maria Cristina
MC
Miorin
Patricia Laguna
PL
da Rocha Pasin
Flavia
F
Tsvetkova
Iva
I