Table 2: Amino acid composition (mg/g protein) of Porphyra shown in comparison to soy meal and the amino acid requirement as stated by WHO/FAO/UNU [111].
Amino Acid |
P. yezoensis [112] |
P. umbilicalis [113] |
P. acanthophora [80] |
Porphyra sp [78] |
Soy meal [101] |
Daily Amino Acid requirement of an Adult [111] |
Histidine (His) |
5.4 |
10.6 |
32 |
2.33 |
2.9 |
15 |
Isoleucine (Ile) |
11.5 |
42.5 |
44 |
8.2 |
3.7 |
30 |
Leucine (Leu) |
41.9 |
86 |
86 |
18.45 |
9.7 |
59 |
Lysine (Lys) |
53.9 |
60 |
67 |
8.26 |
6.6 |
45 |
Methionine (Met) |
8.3 |
11.5 |
12 |
2.05 |
0.6 |
16 |
Cystine |
6 |
|||||
Methionine + Cystine |
22 |
|||||
Phenylalanine + tyrosine (Phe) + (Tyr) |
49.8 |
79.8 |
75 |
8 |
10.4 |
30 |
Threonine |
||||||
Tryptophan |
37.3 |
63.5 |
62 |
11.21 |
4.4 |
23 |
Valine |
- |
6 |