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Table 1 Amino acid composition of SSC and compared with collagen of brown banded bamboo shark skin [8] and tilapia skin [18] (residues/1000 amino acid residues)

From: Beneficial effects of a novel shark-skin collagen dressing for the promotion of seawater immersion wound healing

Amino acid Collagen of blue shark skin Collagen of brown banded bamboo shark skin Collagen of Tilapia skin
Aspartic acid 42 42 41
Threonine 24 23 24
Serine 41 41 33
Glutamic acid 76 77 68
Glycine 330 318 319
Alanine 118 105 118
Valine 25 25 16
Cysteine 0 1 0
Methionine 11 12 6
Isoleucine 21 18 8
Leucine 26 24 2
Tyrosine 3 3 2
Phenylalanine 14 14 27
Lysine 26 29 24
Histidine 8 7 5
Arginine 54 51 52
Hydroxyproline 76 93 77
Proline 105 111 113
Imino acid (Pro + Hyp) 181 204 190