PHYSICO-CHEMICAL CHARACTERIZATION AND ANTIOXIDANT ACTIVITY OF TRANSYLVANIAN PROPOLIS
PHYSICO-CHEMICAL CHARACTERIZATION AND ANTIOXIDANT ACTIVITY OF TRANSYLVANIAN PROPOLIS
Author(s): Daniel Severus Dezmirean, Rodica Mărgăoan, Liviu Alexandru Mărghitaş, Cristina Manuela MihaiSubject(s): Economy
Published by: Addleton Academic Publishers
Keywords: flavonoids; polyphenols; propolis; resins; wax content
Summary/Abstract: Transylvanian propolis is characterized through its physico-chemical properties and antioxidant activity. Samples taken into study showed a wide variability with regards to their chemical composition. Humidity level was very balanced, but wax content ranged between 15.43 % and 54.44 %. Extraction of resins from propolis with ethanol 70 % resulted within the range 41.96%–73.20% with a mean value of 61.72 ± 7.74%. Variations noticed within the flavonoid content of propolis are mainly attributable to the difference in the preferred regional plants collected by honeybees. IC50 values for the investigated propolis samples ranged between 0.44 mg/ml and 4.29mg/ml. The lowest IC50 value 0.44 mg/ml corresponding to sample P15 indicates a great antioxidant activity of the mentioned sample.
Journal: Economics, Management, and Financial Markets
- Issue Year: 6/2011
- Issue No: 1
- Page Range: 1228-1234
- Page Count: 7
- Language: English
- Content File-PDF
