Amino Acid Profiles, Total Nitrogen Contents, and Computed-Protein Efficiency Ratios of Manihot esculenta Root and Dioscorea rotundata Tuber Peels

Table 3

Essential amino acid scores of cassava and yam peels relative to provisional amino acid scoring pattern.

Amino acid	Standard value	⁢Amino acid scores (mg/g protein)
		Cassava peels	Yam peels	Mean	SD	%CV
Lys	55	0.44	0.43	0.44	0.01	2.27
Thr	40	0.57	0.54	0.56	0.02	3.57
Met + Cys	35	0.31	0.22	0.27	0.05	18.52
Ile	40	0.78	0.43	0.61	0.18	29.51
Leu	70	0.60	0.51	0.56	0.05	8.93
Val	50	0.62	0.63	0.63	0.01	1.59
Phe + Tyr	60	0.80	0.70	0.75	0.05	6.66
Total	360	4.12	3.46	3.79	0.33	8.71

SD = standard deviation; CV = coefficient of variation; standard value of essential amino acid scores according to FAO/WHO/UNU [38].