화학공학소재연구정보센터
Separation Science and Technology, Vol.53, No.11, 1724-1731, 2018
Polyprenylated benzophenone-enriched extracts obtained using SC-CO2 from the dry ethanolic extract of Brazilian red propolis
Red propolis is a well-known potent antimicrobial source because of its various bioactive compounds. This work aims to submit a sample of Brazilian red propolis to supercritical CO2 extraction, with subsequent chemical characterisation by HPLC and UHPLC-MS, and to evaluate the antifungal activity against three strains of Candida glabrata. The method proved to be selective for the extraction of benzophenones. The results demonstrated a correlation between the presence of benzophenones and antifungal activity. The supercritical extract that seems to be the richest in benzophenones was the one obtained with a pressure of 300 bar and was the most active against the C. glabrata strains.Abbreviations: SFE, Supercritical Fluid Extraction; MIC, Minimal Inhibitory Concentration; SC, Supercritical; BZP, benzophenones