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Table 2 Cytotoxic activity of the essential oils of Plectranthus species (μg/mL)

From: Phytochemical analysis and evaluation of the cytotoxic, antimicrobial and antioxidant activities of essential oils from three Plectranthus species grown in Saudi Arabia

Test samples

IC50 values (μg/mL)

HeLa

HepG2

HT-29

P. cylindraceus

3.97 ± 0.13 d

3.88 ± 0.06 c

3.91 ± 0.15 c

P. asirensis

7.51 ± 0.48 b

7.19 ± 0.74 a

6.82 ± 0.65 b

P. barbatus

4.97 ± 0.15 c

4.99 ± 0.17 b

4.93 ± 0.1 c

Dasatamib

5.57 ± 0.17 a

4.05 ± 0.21 b

5.24 ± 0.18 b

  1. HeLa human cervical cancer, HepG2 human hepatocellular liver carcinoma, HT-29 human colon cancer. In the columns of IC50, means ± SD with different letters notification are significant at (P < 0.05) (n = 3)