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Table 2 Half inhibition ratios of S1–S6 (95% confidence limits) and the correlation coefficient R

From: Antibacterial evaluation of plants extracts against ampicillin-resistant Escherichia coli (E. coli) by microcalorimetry and principal component analysis

Extracts IC50/μg mL−1 Lower limit/μg mL−1 Uper limit/μg mL−1 R
S1 190.4 177.2 203.1 0.974
S2 114.6 79.4 174.6 1.906
S3 289.2 252.4 334.3 0.963
S4 372.0 255.5 674.3 0.954
S5 242.4 157.1 426.8 0.934
S6 84.3 67.3 105.9 0.944