作者: Mario Jug , Marijana Zovko Končić , Ivan Kosalec
DOI: 10.1016/J.LWT.2014.02.006
关键词: Propolis 、 Maceration (wine) 、 Chelation 、 Antioxidant 、 Candida albicans 、 Antimicrobial 、 Chromatography 、 Streptococcus mutans 、 Chemistry 、 Extraction (chemistry)
摘要: Abstract This investigation was aimed to prepare solid propolis extracts by lyophilisation and evaluate the efficiency of different extraction procedures (maceration/ultrasound extraction) types media used on phenolic compounds (TP), flavonoids (TF) acids (TPA) from raw poplar type propolis. Obtained lyophilised were evaluated in terms yield, antioxidant potential antimicrobial activity against selected bacterial/fungal stains. Those parameters varied significantly as a function applied. In this regard, 80% ethanol found be preferred medium, allowing efficient TP TF with high yields. The resulting notable radical scavengers showing antibacterial Streptococcus mutans but less Pseudomonas aeruginosa . Also, moderate antifungal Candida albicans observed. On contrary, prepared aqueous showed poor tested stains active Fe 2+ chelators. Ultrasound comparable maceration bioactive propolis, offered additional advantages ensuring at rather low temperature (4 °C vs. 25/50 °C for maceration) short time (30 min 24 h maceration).