Amino Acid Profiles, Total Nitrogen Contents, and Computed-Protein Efficiency Ratios of Manihot esculenta Root and Dioscorea rotundata Tuber Peels
Table 1
Amino acid profile (g/100 g protein) of cassava and yam peels.
Amino acid
Cassava peels
Yam peels
Mean
SD
%CV
Lysc
2.42
2.36
2.30
0.03
1.26
Hisc
1.08
0.95
1.02
0.07
6.40
Argc
3.23
3.15
3.19
0.04
1.25
Thrc
2.27
2.16
2.22
0.06
2.70
Metc
0.54
0.37
0.46
0.09
19.57
Ilec
3.13
1.70
2.42
0.72
29.75
Phec
2.82
2.29
2.56
0.27
10.55
Leuc
4.17
3.58
3.88
0.30
7.75
Valc
3.10
3.16
3.13
0.33
0.95
Aspb
3.31
3.21
3.26
0.05
1.53
Asnb
2.69
2.60
2.65
0.05
1.89
Serb
1.59
1.41
1.50
0.09
6.00
Glub
3.92
3.75
3.84
0.09
2.34
Glnb
2.62
2.50
2.56
0.06
2.34
Prob
1.62
1.39
1.51
0.12
7.95
Glyb
2.40
2.41
2.41
0.00
0.00
Alab
3.31
3.31
3.31
0.00
0.00
Cysb
0.55
0.41
0.48
0.07
14.50
Tyrb
1.99
1.90
1.95
0.05
2.56
Values are means of triplicate determinations; c = essential amino acids; b = nonessential amino acids; SD = standard deviation; CV = coefficient of variation.
