(c).

Aminoacids
Principal component	Nigeria (g/100 g protein DW ± SD) [68]
Isoleucine (Ile)∗	3.26 ± 1.05
Leucine (Leu)∗	6.84 ± 1.02
Lysine (Lys)∗	3.5 ± 0.21
Methionine (Met)∗	1.11 ± 0.1
Cysteine (Cys)	0.42 ± 0.21
Phenylalanine (Phe)∗	4.77 ± 2.02
Tyrosine (Tyr)	2.59 ± 1.20
Threonine (Thr)∗	2.61 ± 1.04
Valine (Val)∗	3.85 ± 0.25
Alanine (Ala)	4.31 ± 0.90
Arginine (Arg)∗	4.32 ± 1.78
Aspartic acid (Asp)	7.73 ± 2.77
Glutamic acid (Glu)	9.36 ± 0.06
Glycine (Gly)	1.24 ± 0.24
Histidine (His)∗	2.09 ± 1.00
Proline (Pro)	2.16 ± 0.16
Serine (Ser)	2.31 ± 0.01

^∗Essential amino acids. DW: dry weight; SD: standard deviation.