Phytochemicals in Leaves and Roots of Selected Kenyan Orange Fleshed Sweet Potato (OFSP) Varieties
Table 2
Variations in carotenoids content (mg/100 g dry basis) among nine Kenyan sweet potato varieties.
Variety
Plant part
Lutein
Zeaxanthin
BX
13ZBC
AllTBC
9ZBC
K/KA/2004/215
Roots
0.10 ± 0.01e
0.10 ± 0.07 g
0.24 ± 0.10 cd
0.06 ± 0.01i
3.82 ± 0.07f
0.06 ± 0.01f
Leaves
36.68 ± 2.74c
0.75 ± 0.00bc
0.39 ± 0.08bc
2.71 ± 0.24d
16.93 ± 2.44 cd
2.71 ± 0.24 cd
Kabode
Roots
0.02 ± 0.00hg
0.08 ± 0.02 g
0.18 ± 0.06d
0.06 ± 0.00i
4.65 ± 0.20f
0.06 ± 0.00 g
Leaves
32.31 ± 0.35 cd
0.42 ± 0.18de
0.28 ± 0.05 cd
2.37 ± 0.11e
14.29 ± 0.30d
2.37 ± 0.11d
Kenspot 4
Roots
0.03 ± 0.00 g
0.02 ± 0.00 h
0.07 ± 0.01e
0.10 ± 0.04 h
2.64 ± 0.38 g
0.10 ± 0.06f
Leaves
44.66 ± 1.88b
0.71 ± 0.04bcd
0.20 ± 0.01 cd
3.19 ± 0.21bc
19.49 ± 0.90bc
3.19 ± 0.21bc
Kenspot 5
Roots
0.10 ± 0.00e
0.26 ± 0.02f
0.46 ± 0.06b
0.12 ± 0.01 h
9.28 ± 0.10e
0.12 ± 0.01ef
Leaves
28.57 ± 1.07d
0.60 ± 0.04cde
0.65 ± 0.24a
2.58 ± 0.21de
15.85 ± 0.53 cd
2.58 ± 0.21d
SPK031
Roots
0.02 ± 0.01hg
0.03 ± 0.02 h
0.45 ± 0.18b
0.39 ± 0.04f
18.18 ± 3.74cb
0.39 ± 0.04e
Leaves
35.80 ± 2.52c
0.33 ± 0.01e
0.15 ± 0.01de
2.78 ± 0.17d
16.81 ± 1.38 cd
2.78 ± 0.17 cd
SPK4
Roots
0.11 ± 0.01e
0.24 ± 0.01f
0.26 ± 0.05 cd
0.05 ± 0.01i
4.43 ± 0.28f
0.05 ± 0.01f
Leaves
32.35 ± 1.27 cd
0.52 ± 0.09cde
0.39 ± 0.04bc
3.32 ± 0.18b
21.15 ± 1.12b
3.32 ± 0.18b
Vitaa
Roots
0.01 ± 0.01 h
0.07 ± 0.01 g
0.35 ± 0.01bc
0.21 ± 0.01 g
9.86 ± 0.98e
0.21 ± 0.01ef
Leaves
29.69 ± 0.14d
0.54 ± 0.06cde
0.26 ± 0.02 cd
2.24 ± 0.04e
13.33 ± 0.16d
2.24 ± 0.04d
Whitesp
Roots
ND
ND
ND
ND
ND
ND
Leaves
48.28 ± 2.37ab
1.00 ± 0.01c
0.39 ± 0.02bc
4.43 ± 0.23a
27.37 ± 1.36a
4.43 ± 0.23a
Yellowsp
Roots
0.07 ± 0.03f
0.13 ± 0.03 g
0.07 ± 0.01e
0.03 ± 0.00j
0.73 ± 0.01 g
0.03 ± 0.00f
Leaves
51.35 ± 4.4a
3.53 ± 0.33a
0.60 ± 0.01ab
4.78 ± 0.43a
28.07 ± 2.93a
4.78 ± 0.43a
BX = β-xanthin, 13ZBC = 13 Cis β-carotene, AllTBC = All trans β-carotene, 9ZBC = β-9 Cis β-carotene, ND = Not detected. Results are means of triplicate samples ± standard deviation; values with same letters in the superscript in the same column are not significantly different at .