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Table 1 Conditions of preparation of different propolis extracts

From: Alternative preparation of propolis extracts: comparison of their composition and biological activities

Sample Composition Extraction temperature Extraction time Total amount of phenolic compounds mg/mL GAE
W1 Propolis 10 g; Water ad 100 mL Room temperature 5 h 1.6 ± 0.4 *
W2 Propolis 10 g; PEG 400 20 g; Water ad 100 mL 70° C 15 min. 10.7 ± 1.2
A1 Propolis 10 g; Olive oil ad 100 mL; Room temperature 5 h 0.5 ± 0.2 *
A2 Propolis 10 g; PEG 400 20 g; Olive oil 50 g; Water ad 100 mL 70° C 15 min. 9.5 ± 1.3
EEP Propolis 10 g; ethanol 70 % ad 100 mL Room temperature 5 h 12.7 ± 1.2
  1. Number or experiments - 3–5
  2. * - P < 0.05 vs EEP