Antioxidant Properties of Some Medicinal Lamiaceae (Labiatae) Species

Figures & data

Table 1 Local names, parts used, uses/ailments treated, and preparations of some Lamiaceae plants used by the villagers of Ilιca District, Erzurum, Turkey.

Botanical name and voucher specimen	Local names	Part used	Use/ailment treated	Preparation
Mentha longifolia. subsp. longifolia. (AEF 21171)	Yarpuz	Herb	Against dyspnea, cough, stomachache, hemorrhoids, and pains; for wound healing	Decoction
Salvia limbata. (AEF 21163)	Kedi otu	Herb	Against toothache	Decoction (gargle)
Teucrium chamaedrys. (AEF 21179)	Basur otu	Herb	For hemorrhoids	Powder (mixed with honey and eaten)
			Against gallbladder stones and kidney stones	Decoction
Thymus fallax. (AEF 21199) Thymus sipyleus. subsp. sipyleus. var. sipyleus. (ATA 9718)	Kekik	Herb	Against stomachache, gastric ulcer, tonsillitis, urinary system diseases, internal diseases, dyspnea; for eczema and hemorrhoids	Decoction

Table 2 Localities, parts, and extraction solvents of plants used in activity studies.

Species	Village	Collection date	Altitude (m)	Part used	Extraction solvent
Mentha longifolia. subsp. longifolia.	Başçakmak	27 Aug. 2000	1800	Herb	Water and methanol
Salvia limbata.	Rizekent	8 Aug. 2000	1800	Herb	Water and methanol
Teucrium chamaedrys.	Sorkunlu	15 Aug. 2000	1900	Herb	Water
Thymus fallax.	Sorkunlu	15 July 2000	1900	Herb	Water
Thymus sipyleus. subsp. sipyleus. var. sipyleus.	Sorkunlu	15 July 2000	1900	Herb	Water

Table 3 Antioxidant activities of plant extracts.

	Concentration (µg/ml)
	AA				DPPH-RSC				RP				APC
	50	100	250	500	50	100	250	500	50	100	250	500	50	100	250	500
T. sipyleus.	15.0	85.1	86.5	89.3	19.5	45.7	83.8	83.3	5.8	10.5	19.8	27.0	6.2	11.2	21.9	35.1
T. chamaedrys.	65.0	65.7	76.3	81.5	27.3	64.2	89.4	89.3	7.9	14.8	29.9	41.5	7.6	13.8	27.9	45.7
M. longifolia.	41.0	57.2	79.2	94.8	32.8	59.5	89.4	88.8	5.2	9.6	18.5	27.0	6.4	10.8	22.0	35.3
M. longifolia.^a.	55.4	74.2	81.3	83.5	28.6	57.8	90.1	88.9	7.0	12.4	26.4	33.3	6.4	12.0	25.1	38.2
S. limbata.	4.6	9.1	20.8	38.4	7.0	15.4	36.6	74.7	1.3	2.4	5.1	9.0	3.2	4.6	9.9	17.0
S. limbata.^a.	57.3	79.4	82.7	85.3	10.3	21.7	56.5	90.9	4.4	6.7	14.1	23.0	3.6	6.8	13.5	23.8
T. fallax.	18.8	73.7	82.2	83.2	44.7	80.7	89.3	87.5	6.0	11.5	22.1	29.9	7.4	13.1	26.2	40.3

AA, antioxidant activity; DPPH-RSC, DPPH radical scavenging activity; RP, reducing power; APC, amount of phenolic compounds.

^a.Methanol extract.

Figure 1 IC₅₀ and IC₅₀S values of extracts (*methanol extract).

Table 4 p values of correlation analyses.

		DPPH-RS	RP	APC	DPPH-RS	RP	APC
T. sipyleus.	AA	0.159	0.266	0.318	0.046	0.008	0.022	T. chamaedrys.
	DPPH-RS		0.060	0.109		0.091	0.127
	RP			0.008			0.003
M. longifolia.	AA	0.046	0.008	0.022	0.029	0.114	0.151	M. longifolia.
	DPPH-RS		0.091	0.127		0.057	0.108
	RP			0.003			0.012
S. limbata.	AA	0.001	0.000	0.001	0.234	0.255	0.244	S. limbata.
	DPPH-RS		0.002	0.002		0.001	0.005
	RP			0.001			0.002
T. fallax.	AA	0.002	0.206	0.259
	DPPH-RS		0.202	0.259
	RP			0.006

AA, antioxidant activity; DPPH-RSC, DPPH radical scavenging activity; RP, reducing power; APC, amount of phenolic compounds.

*. Methanol extract.