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Table 1 Amino acid compositions of bluefin tuna skin type I collagen

From: Isolation and characterization of acid-soluble bluefin tuna (Thunnus orientalis) skin collagen

Amino acid %
Hydroxyproline 6.41
Aspartic acid 3.95
Threonine 2.49
Serine 3.41
Glutamic acid 6.81
Proline 10.45
Glycine 27.58
Alanine 9.68
Valine 2.11
Methionine 1.29
Isoleucine 1.15
Leucine 2.14
Tyrosine 0.35
Hydroxylysine 1.16
Lysine 2.63
Histidine 0.79
Arginine 9.90