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Table 1 Quantity of identified active compounds in aqueous, polyethylene glycol-aqueous and ethanolic propolis extracts

From: Comparison of aqueous, polyethylene glycol-aqueous and ethanolic propolis extracts: antioxidant and mitochondria modulating properties

Active compounds ± SE (μg/mL)

Total amount of phenolic acids and vanillin (μg/ml)

Total content of phenolic compounds, (μg/ml)

Extract type

Vanillic acid

Caffeic acid

Vanillin

p-Coumaric acid

Ferulic acid

AqEP

109.5 ± 10.7

7.5 ± 0.1

156.6 ± 21.4

165.2 ± 10.3

78.4 ± 2.7

514.7 ± 40.6

1 207.9 ± 27.6

Pg-AqEP

151.3 ± 10.4*

12.7 ± 2.8*

259.7 ± 6.0*

298.3 ± 20.2*

161.9 ± 5.1*

879.6 ± 29.8*

2 149.5 ± 16.1*

EEP

501.3 ± 23.3*

48.1 ± 10.2*

888.9 ± 43.0*

1167.4 ± 6.2*

798.9 ± 54.3*

3404.7 ± 124.8*

20 791.3 ± 2320.9*

  1. *P < 0.05, vs AqEP