Antioxidant and Anticholinesterase Potential of Six Thymus Species

Table 1

Yield percentages of the ethanolic extracts and contents of total hydroxycinnamic acids, flavonoids, tannins, and procyanidins in aerial parts of selected Thymus species.

Plant species	Extract yield	Content (%)
		Hydroxycinnamic acids	Flavonoids	Tannins	Procyanidins
T. longicaulis	21.34	5.41 ± 0.09^a	0.40 ± 0.004^a	1.33 ± 0.02^a	0.70 ± 0.015^a
T. praecox subsp. polytrichus	20.06	4.39 ± 0.01^b	0.24 ± 0.010^b	0.93 ± 0.05^b	0.29 ± 0.002^b
T. pulegioides	22.54	6.17 ± 0.07^c	0.42 ± 0.003^c	1.59 ± 0.04^c	0.41 ± 0.002^c
T. serpyllum subsp. serpyllum	19.22	4.36 ± 0.11^b	0.40 ± 0.006^a	1.06 ± 0.08^d	0.45 ± 0.004^d
T. striatus	15.54	3.35 ± 0.10^d	0.15 ± 0.003^d	0.77 ± 0.07^e	0.26 ± 0.003^e
T. vulgaris	18.28	3.58 ± 0.03^e	0.24 ± 0.006^b	0.98 ± 0.03^b,d	0.21 ± 0.002^f

Extract yield expressed as percentage weight of air-dried plant material.
Mean values in the same column followed by different letters are significantly different from each other ().