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Table 1 Evaluation of 10 selective media for mycobacterial recovery from soil

From: Isolation of nontuberculous mycobacteria from soil using Middlebrook 7H10 agar with increased malachite green concentration

Media

No. of media

Positive

Contaminated

Total

PANTA-containing LJ

13a

18

20

LJ

1

19

20

Modified Middlebrook 7H10 with PANTA but without MG

3

17

20

Middlebrook 7H10 with 0.25 mg/L MG

0

20

20

Modified Middlebrook 7H10 with 2.5 mg/L MG

0

20

20

Modified Middlebrook 7H10 with 25 mg/L MG

4

16

20

Modified Middlebrook 7H10 with 100 mg/L MG

13

0

20

Modified Middlebrook 7H10 with 250 mg/L of MG

13

0

20

Modified Middlebrook 7H10 with 500 mg/L of MG

8

0

20

Modified Middlebrook 7H10 with 2500 mg/L of MG

1

0

20

  1. a13, 11 of 13 tubes had late contamination