Spray-dried propolis extract. I: physicochemical and antioxidant properties.

摘要: The effect of spray drying on the chemical and biological properties alcoholic extract green propolis was investigated. total polyphenol flavonoid contents in spray-dried were determined by Folin-Ciocalteu aluminum chloride colorimetric methods, respectively. antioxidant activity dry assessed membrane lipid peroxidation inhibition method, using quercetin as reference. content shown to depend air outlet temperature its square at 0.5% significance level, while depended only 5% level. Polyphenol recovery after spray-drying ranged from 45.1 54.9% 30.6 40.8%, be affected feed rate a level 0.1%. showed significant activity, with 50% concentrations ranging 2.5 5.0 microg/ml.