Table 4

	Total Antioxidant capacity (OD, nm)		Superoxide (% inhibition)		FRAP (µmol of FE/100g)		DPPH (% inhibition)
	Mean	s.d.	Mean	s.d.	Mean	s.d.	Mean	s.d.
All Varieties	0.04	0.02	48.40	5.07	157654.25	52326.08	45.53	7.66
Khalas	0.02^b	<0.01	45.70^bcd	1.56	75627.20^b	526.70	41.61^d	0.08
Barhe	0.01^a	<0.01	42.14^b	1.07	62554.93^a	434.48	29.44^a	0.03
Lulu	0.03^bc	<0.01	48.50^cde	1.49	82406.53^c	480.84	42.65^e	0.02
Shikat alkahlas	0.03^bcd	<0.01	50.64^defg	1.63	108488.93^e	193.71	62.90^m	0.77
Sokkery	0.03^bc	<0.01	53.05^efgh	1.63	183802.80^j	388.09	44.43^g	0.02
Bomaan	0.05^gh	<0.01	44.57^bc	1.10	137681.87^g	348.50	42.85^e	0.00
Sagay	0.05^fgh	<0.01	56.39^h	2.58	222569.20ⁿ	219.07	52.73^k	0.01
Shishi	0.04^fg	<0.01	48.43^cde	1.59	171449.07ⁱ	762.89	47.18ⁱ	0.02
Maghool	0.03^bc	<0.01	47.73^cd	1.20	159825.07^h	203.22	35.57^b	0.02
Sultana	0.10^j	<0.01	47.77^cd	1.51	210160.27^m	621.99	48.81^j	0.01
Fard	0.05^h	<0.01	55.32^gh	1.95	198639.20ⁱ	15.24	53.70ⁱ	0.03
Maktoomi	0.04^fg	<0.01	44.47^bc	1.56	102144.13^d	170.67	43.03^e	0.03
Naptit Saif	0.04^def	<0.01	48.28^cde	2.13	199638.13ⁱ	576.56	42.65^e	0.01
Jabri	0.05^h	<0.01	53.59^fgh	1.25	221595.73ⁿ	724.60	43.68^f	0.02
Khodary	0.05^gh	<0.01	35.27^a	1.28	221467.07ⁿ	509.95	53.08^k	0.04
Dabbas	0.03^cde	<0.01	50.67^defg	2.08	159552.27^h	675.46	53.16^kl	0.02
Raziz	0.07ⁱ	0.01	48.98^cdef	1.19	188095.60^k	538.92	45.32^h	0.00
Shabebe	0.04^ef	<0.01	49.72^def	1.61	132078.53^f	108.76	36.71^c	0.00

*Tukey test was peformed to compare varieties. Different letters denote significant differences, p<0.05

Table 4: Antioxidant capacities of eighteen varieties of date seeds. Means and sd are presented*.