Research Article
Effect of Ethanol/Water Solvents on Phenolic Profiles and Antioxidant Properties of Beijing Propolis Extracts
Table 2
Total phenolic and flavonoid contents of propolis extracts.
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Note: water extracts of propolis were expressed as WEP. Extracts of propolis by using 25, 50, 75, 95, and 100 wt. % ethanol/water solvents were expressed as 25% EEP, 50% EEP, 75% EEP, 95% EEP, and 100% EEP, respectively. TPC was expressed as milligram of gallic acid equivalent per gram of propolis (mg GAE g−1). TFC was expressed as milligram of rutin equivalent per gram of propolis (mg RE g−1). Dates are mean ± standard deviation (). Values in the same column followed by the same lowercased letter are not significantly different by Duncan’s Multiple-Range Test (). |