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Table 1 Comparison of the extraction yields (percentage of extracted matter from raw propolis) for the maceration extraction, UE and MAE*

From: Different extraction methods of biologically active components from propolis: a preliminary study

Extraction type

Propolis/solvent (m/V)

Time

Total phenolics, %

Total flavones/flavonols, %

Total flavanones/dihydroflavonols, %

Total extract, %

Maceration

1:20

72 h

44 ± 2

8.6 ± 0.1

18 ± 1

58 ± 3

Maceration

1:10

72 h

43 ± 2

8.8 ± 0.1

19 ± 2

55 ± 1

UE

1:20

10 min

35.9 ± 0.5

9.4 ± 0.2

20 ± 5

41 ± 1

UE

1:20

30 min

50 ± 1

8.6 ± 0.1

23 ± 2

50 ± 1

UE

1:10

30 min

52 ± 3a,b,c

9.6 ± 0.8a

22 ± 2a

53 ± 3a,b,c

MAE

1:20

2 × 10 s

40 ± 1

9.3 ± 0.1

23 ± 3

73 ± 2

MAE

1:10

2 × 10 s

40.4 ± 0.6a,b,c

8.7 ± 0.1a

20 ± 1a

75 ± 0a,b,c

MAE

1:10

3 × 10 s

24.4 ± 0.4

10.7 ± 1.7

7.5 ± 0.6

66 ± 5

  1. • Mean values of three extraction ± SD;
  2. • a values compared with those obtained via maceration, (propolis/solvent 1:10),
  3. • b values significantly different from those obtained by maceration (propolis/solvent 1:10), p < 0.05 (Student's t-test),
  4. • c values compared and found significantly different, p < 0.05 (Student's t-test)