Amino Acid Profiling and SDS-PAGE Analysis of Protein Isolates Obtained from Nonconventional Sources

Table 1

Essential amino acids (g/100 g protein) of defatted oilseed protein isolates.

Amino acid	SPI	FPI	CPI
ARM	3.36 ± 0.11^a	3.30 ± 0.90^a	2.89 ± 0.15^b
Histidine	1.65 ± 0.05^a	1.67 ± 0.04^a	1.39 ± 0.05^b
Isoleucine	2.31 ± 0.08^a	2.12 ± 0.05^b	2.29 ± 0.09^a
Leucine	4.39 ± 0.11	4.37 ± 0.22	4.30 ± 0.23
Lysine	1.48 ± 0.04^c	1.62 ± 0.07^b	2.60 ± 0.09^a
Threonine	2.41 ± 0.16	2.49 ± 0.08	2.38 ± 0.08
SAA	1.59 ± 0.05^b	2.00 ± 0.06^a	1.36 ± 0.04^c
Tryptophan	0.98 ± 0.01^b	1.96 ± 0.03^a	0.85 ± 0.02^b
Valine	2.83 ± 0.11^a	2.60 ± 0.15^b	2.69 ± 0.05^b

Means having the similar letter in a row do not differ significantly. Aromatic amino acid (phenyl alanine + tyrosine). Sulfur-containing amino acid (methionine + cysteine). SPI = sesame protein isolates, FPI = flaxseed protein isolates, and CPI = canola protein isolates.