Alteration of Neutrophil Reactive Oxygen Species Production by Extracts of Devil’s Claw (Harpagophytum)

Table 3

Composition of verbascosides and iridoids in each Harpagophytum tuber extract presented as mean value with standard deviation (SD) as mg per g dry weight of the plant material.

Accession	Verbascoside		Isoverbascoside		Acetylacteoside		Pagoside		Harpagoside		8-O-p-Coumaroyl-harpagide
	Mean	SD	Mean	SD	Mean	SD	Mean	SD	Mean	SD	Mean	SD
3	3.04	0.11	21.75	1.16	4.49	0.16	0.11	0.01	4.09	0.34	0.04	0.00
11	1.28	0.11	6.02	0.50	3.30	0.45	0.68	0.08	9.08	0.97	4.04	0.41
14	4.22	0.33	15.62	1.32	1.29	0.15	0.48	0.05	7.07	0.60	3.29	0.35
16	0.64	0.09	2.47	0.27	0.84	0.03	0.17	0.01	0.96	0.15	0.07	0.01
17	0.33	0.05	0.62	0.08	0.23	0.03	0.02	0.00	1.71	0.24	0.09	0.01
24	0.39	0.08	0.64	0.14	0.41	0.11	0.00	0.00	0.16	0.01	0.01	0.00