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. 2017 Mar 6;54(5):1228–1238. doi: 10.1007/s13197-017-2566-z

Table 1.

Amino acid composition (g/100 g protein) of mussel byssus and pepsin-soluble collagen (PSC) extracted from mussel byssus

Mussel byssus Enzyme-aided extraction conditionsa
1:50—4 h 1:50—24 h 4:50—4 h 4:50—24 h
Hyp 42.9 2.2 3.0 2.2 2.8
Asp 0.7 11.2 10.6 12.3 10.9
Thr 3.3 3.9 3.8 3.7 3.5
Ser 4.6 5.3 5.4 5.3 5.3
Glu 1.6 9.4 7.2 9.0 9.5
Pro 6.8 6.0 6.3 5.9 5.9
Gly 14.3 9.0 10.2 8.9 10.0
Ala 3.9 4.4 4.8 4.5 4.8
Cys 0.0 7.5 6.0 7.5 5.4
Val 3.0 4.5 4.4 4.6 4.2
Met 0.7 1.5 5.4 1.5 5.2
Ile 2.6 3.9 3.8 3.8 3.6
Leu 1.1 5.7 5.6 5.7 5.5
Tyr 2.5 3.6 3.2 3.6 3.0
Phe 1.9 3.0 3.0 2.9 2.9
Lys 1.7 7.1 6.2 6.9 6.4
His 2.7 2.0 1.9 2.1 2.1
Arg 5.8 9.8 9.2 9.7 9.0
Imino acids 49.7 8.2 9.3 8.1 8.7

Bold values correspond to imino acids

aConditions of hydrolysis: pepsin:byssus mass ratio and hydrolysis time