Phytochemicals in Leaves and Roots of Selected Kenyan Orange Fleshed Sweet Potato (OFSP) Varieties

Table 3

Ascorbic acid, flavonoid, phenolic and antioxidant contents (in dry weight basis) in leaves and roots of nine Kenyan sweet potato varieties.

Variety	Plant part	Ascorbic acid (mg/100 g)	Flavonoids (mgCE/100 g)	Phenolics (mgGAE/100 g)	Antioxidant (mgTE/100 g)
K/KA/2004/215	Leaves	192.28 ± 14.16^e	6162.26 ± 236.60^c	6134.03 ± 474.33^ab	3827.30 ± 55.75^c
	Roots	19.05 ± 1.25^k	25.85 ± 2.76^f	190.50 ± 16.39^f	79.60 ± 9.32^a
Kenspot 4	Leaves	174.98 ± 8.5^e	6247.64 ± 334.96^cb	6313.33 ± 375.74^ab	4074.35 ± 174.95^bc
	Roots	4.95 ± 0.49^l	1.39 ± 0.00^i	103.68 ± 8.00^h	27.67 ± 0.77^d
Kenspot 5	Leaves	146.64 ± 0.09^f	7315.83 ± 685.41^a	6801.09 ± 325.38^a	4222.82 ± 82.26^b
	Roots	15.07 ± 1.34^g	1.03 ± 0.13^i	139.79 ± 13.94^g	72.68 ± 7.63^b
Kabode	Leaves	341.87 ± 23.74^a	5975.55 ± 336.12^c	5842.57 ± 233.69^bc	4546.49 ± 348.07^a
	Roots	16.56 ± 0.30^f	21.81 ± 2.12^g	95.18 ± 8.74^h	41.41 ± 3.88^c
SPK031	Leaves	297.45 ± 12.95^b	4743.15 ± 420.31^d	4495.93 ± 365.08^d	4707.62 ± 187.05^a
	Roots	11.06 ± 0.27^i	25.81 ± 2.77^f	223.55 ± 15.16^e	39.52 ± 3.94^c
SPK4	Leaves	272.29 ± 6.05^c	4097.22 ± 384.84^e	6432.73 ± 616.53^ab	4055.10 ± 402.99^bc
	Roots	13.33 ± 0.00^h	4.21 ± 0.17^h	92.75 ± 2.08^h	13.56 ± 1.01^e
Vitaa	Leaves	349.05 ± 13.14^a	6941.51 ± 211.24^a	5749.26 ± 574.89^bc	4027.98 ± 15.61^bc
	Roots	4.53 ± 0.13^l	12.63 ± 0.00^g	176.72 ± 9.72^f	31.86 ± 1.46^d
Whitesp	Leaves	331.57 ± 5.77^a	6868.09 ± 0.00^ab	5216.71 ± 0.00^c	4124.12 ± 266.90^bc
	Roots	8.95 ± 0.52^j	ND	ND	38.02 ± 2.97^c
Yellowsp	Leaves	216.95 ± 11.54^d	6868.09 ± 0.00^ab	5216.71 ± 0.00^c	4101.29 ± 354.34^bc
	Roots	6.60 ± 0.65^k	12.63 ± 0.00^g	187.42 ± 0.00^f	75.17 ± 8.88^ab

ND = Not detected; results are means of triplicate samples ± standard deviation; Values with similar letters in the same column are not significantly different at .