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Table 2 Minimum inhibitory concentration (MIC) of methanolic extracts of R. californica and U. californica (mg/ml)

From: Antibacterial activity of native California medicinal plant extracts isolated from Rhamnus californica and Umbellularia californica

Plants

B. cereus ATCC® 14579

S. aureus ATCC® 25923

MRSA ATCC® BAA-1683

M. smegmatis ATCC® 10143

R. californica Leaves

4.0 ± 0

6.0 ± 0*

6.0 ± 0*

5.0 ± 1.4*

U. californica Leaves

4.0 ± 0

4.3 ± 0.5

5.5 ± 1.0*

4.7 ± 1.2

U. californica Bark

3.3 ± 1.2

4.0 ± 0

5.0 ± 1.4*

6.0 ± 2.1

Methanol

--

--

--

--

  1. Values represent averages ± SD. --, not active; most experiments were repeated three times (n = 3); *n = 2