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Table 5 Effects of extracts from A. salicina on the mutagenicity induced by MMS and 2-AA in S. typhimurium TA102 assay system respectively in the absence and in the presence of S9

From: Polar extracts from (Tunisian) Acacia salicina Lindl. Study of the antimicrobial and antigenotoxic activities

TA102

Extracts

Dose (µg/plate)

-S9

+S9

  

Nb Revertants/plate

% inhibition of mutagenesis

Nb Revertants/plate

% inhibition of mutagenesis

Spontaneous

-

175 ± 10

-

235 ± 12

-

PC

-

1721 ± 24

-

652 ± 10

-

Aqueous extract

5

NT

NT

600 ± 3

44.6*

 

10

NT

NT

580 ± 8

17

 

25

NT

NT

466 ± 5

12.4

 

50

477

80.5*

T

-

 

250

398

85.6*

T

-

 

500

387

86.3*

T

-

TOF extract

5

NT

NT

516 ± 15

32.6*

 

10

NT

NT

520 ± 17

31.6*

 

25

NT

NT

619 ± 14

8

 

50

377

86.9*

T

-

 

250

354

88.4*

T

-

 

500

276

93.5*

T

-

Methanolic extract

5

NT

NT

516 ± 9

32.6*

 

10

NT

NT

520 ± 3

31*

 

25

NT

NT

572 ± 9

20

 

50

455

81.8*

T

-

 

250

356

88.3*

T

-

 

500

345

89*

T

-

  1. Nb = number of revertant/plate ± SD; PC = Positive control TA102/-S9, MMS (10 μg/plate); TA102/+S9, 2-AA (5 μg/plate); NT: not tested, T: toxic