Anticancer Activity of Certain Herbs and Spices on the Cervical Epithelial Carcinoma (HeLa) Cell Line

Table 1

A summary of the IC₅₀ values of the plant extracts and their vitamin C equivalents.

Plant extracts	IC50 values (μg/mL) ± SD	Vitamin C equivalents for a 200 mg capsule (in g)
(1) Rosmarinus officinalis (McConnell’s Blue)	3.48±0.22	0.351
(2) Rosmarinus officinalis (Tuscan Blue)	10.84±0.12	1.09
(3) Lavandula-x-intermedia (Margaret Roberts)	138.5±4.0	14.0
(4) Lavandula spica	125.5±1.8	12.67
(5) Origanum vulgare	26.43±1.58	2.67
(6) Petroselinum crispum	53.3±2.63	5.38
(7) Laurus nobilis	30.85±0.48	3.12
(8) Thymus vulgaris	36.13±0.85	3.65
(9) Foeniculum vulgaris	38.36±0.76	3.88
(10) Capsicum annuum (Paprika)	63.06±1.91	6.27
(11) Vitamin C^a	1.98±0.01	—

^aPositive control for antioxidant assay.