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Table 2 β-galactosidase activity results of ARSA after treatment with ampicillin, SSE alone or in combination

From: Synergistic activity and mechanism of action of Stephania suberosa Forman extract and ampicillin combination against ampicillin-resistant Staphylococcus aureus

Time

Control (no drug)

Amp (256)

SSE (2)

Amp + SSE (0.11 + 1.5)

NIS (8) (positive control)

0

Neg

Neg

Neg

Neg

Neg

1

Neg

Neg

Neg

Pos

Pos

2

Neg

Neg

Neg

Pos

Pos

3

Neg

Neg

Neg

Pos

Pos

4

Neg

Neg

Neg

Pos

Pos

5

Neg

Neg

Neg

Pos

Pos

  1. Neg, no evidence of activity; Pos, have evidence of activity; Amp (256), ampicillin at 256 μg/ml; SSE (2), Stephania suberosa extract at 2 mg/ml; Amp + SSE (0.11 + 1.5) = Ampicillin 0.11 μg/ml plus SSE 1.5 mg/ml; NIS (8), Nisin at 8 μg/ml was used as a positive control. The experiment was carried out in triplicate observations.
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Journal of Biomedical Science

ISSN: 1423-0127