No abstract

Propolis, Polyphenols, Volatiles, GC/MS, Antibacterial Activity Four samples of Brazilian propolis were investigated by GC/MS of different fractions. 32 volatile compounds, (10 of them new for propolis), as well as 12 more polar compounds (one of them new for propolis) were identified. Antibacterial activity was found in some propolis fractions.

No abstract

No abstract

Volatile oils from Albanian, Bulgarian and Mongolian propolis have been investigated.

Three samples of Brazilian geopropolis, collected by three indigenous bee species, were investigated by GC/MS. More than 50 compounds were identified, mainly terpenoids and phenolics. The chemical composition of propolis gathered by different bee species was different.

No abstract

The composition of essential oils o f three .Sidm.tisspecies was investigated by GC and GUMS. It was found that the oil of S. syriiaca L. contained a high percentage of myrccnc (50.50/), while sesquiterpenes dominated in the oils of S . scardica Griseb and S. moizluiza L. The major components in S. scardica o i l were P-caryophyllene (18.8%) and nerolidol (12.10/), while germacrenc I) (41.1%) and bicyclogermacrene (10.9%) were the principal constituents of S. monkmu oil.