Research Article

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.

VarietyPlant partLuteinZeaxanthinBX13ZBCAllTBC9ZBC

K/KA/2004/215Roots0.10 ± 0.01e0.10 ± 0.07 g0.24 ± 0.10 cd0.06 ± 0.01i3.82 ± 0.07f0.06 ± 0.01f
Leaves36.68 ± 2.74c0.75 ± 0.00bc0.39 ± 0.08bc2.71 ± 0.24d16.93 ± 2.44 cd2.71 ± 0.24 cd
KabodeRoots0.02 ± 0.00hg0.08 ± 0.02 g0.18 ± 0.06d0.06 ± 0.00i4.65 ± 0.20f0.06 ± 0.00 g
Leaves32.31 ± 0.35 cd0.42 ± 0.18de0.28 ± 0.05 cd2.37 ± 0.11e14.29 ± 0.30d2.37 ± 0.11d
Kenspot 4Roots0.03 ± 0.00 g0.02 ± 0.00 h0.07 ± 0.01e0.10 ± 0.04 h2.64 ± 0.38 g0.10 ± 0.06f
Leaves44.66 ± 1.88b0.71 ± 0.04bcd0.20 ± 0.01 cd3.19 ± 0.21bc19.49 ± 0.90bc3.19 ± 0.21bc
Kenspot 5Roots0.10 ± 0.00e0.26 ± 0.02f0.46 ± 0.06b0.12 ± 0.01 h9.28 ± 0.10e0.12 ± 0.01ef
Leaves28.57 ± 1.07d0.60 ± 0.04cde0.65 ± 0.24a2.58 ± 0.21de15.85 ± 0.53 cd2.58 ± 0.21d
SPK031Roots0.02 ± 0.01hg0.03 ± 0.02 h0.45 ± 0.18b0.39 ± 0.04f18.18 ± 3.74cb0.39 ± 0.04e
Leaves35.80 ± 2.52c0.33 ± 0.01e0.15 ± 0.01de2.78 ± 0.17d16.81 ± 1.38 cd2.78 ± 0.17 cd
SPK4Roots0.11 ± 0.01e0.24 ± 0.01f0.26 ± 0.05 cd0.05 ± 0.01i4.43 ± 0.28f0.05 ± 0.01f
Leaves32.35 ± 1.27 cd0.52 ± 0.09cde0.39 ± 0.04bc3.32 ± 0.18b21.15 ± 1.12b3.32 ± 0.18b
VitaaRoots0.01 ± 0.01 h0.07 ± 0.01 g0.35 ± 0.01bc0.21 ± 0.01 g9.86 ± 0.98e0.21 ± 0.01ef
Leaves29.69 ± 0.14d0.54 ± 0.06cde0.26 ± 0.02 cd2.24 ± 0.04e13.33 ± 0.16d2.24 ± 0.04d
WhitespRootsNDNDNDNDNDND
Leaves48.28 ± 2.37ab1.00 ± 0.01c0.39 ± 0.02bc4.43 ± 0.23a27.37 ± 1.36a4.43 ± 0.23a
YellowspRoots0.07 ± 0.03f0.13 ± 0.03 g0.07 ± 0.01e0.03 ± 0.00j0.73 ± 0.01 g0.03 ± 0.00f
Leaves51.35 ± 4.4a3.53 ± 0.33a0.60 ± 0.01ab4.78 ± 0.43a28.07 ± 2.93a4.78 ± 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 .