Abstract：
:The autolysis of sea cucumber body wall is caused by endogenous proteolysis of its structural elements. However, changes in collagen fibrils, collagen fibres and microfibrils, the major structural elements in sea cucumber body wall during autolysis are less clear. Autolysis of sea cucumber (S. japonicus) was induced by cutting the body wall, and the structural and biochemical changes in its dermis were investigated using electron microscopy, differential scanning calorimetry, infrared spectroscopy, electrophoresis, and chemical analysis. During autolysis, both collagen fibres and microfibrils gradually degraded. In contrast, damage to microfibrils was more pronounced. Upon massive autolysis, collagen fibres disaggregated into collagen fibril bundles and individual fibrils due to the fracture of interfibrillar bridges. Meanwhile, excessive unfolding of collagen fibrils occurred. However, there was only slight damage to collagen monomers. Therefore, structural damage in collagen fibres, collagen fibrils and microfibrils rather than monomeric collagen accounts for autolysis of S. japonicus dermis.
journal_name
Food Chemjournal_title
Food chemistryauthors
Liu YX,Zhou DY,Liu ZQ,Lu T,Song L,Li DM,Dong XP,Qi H,Zhu BW,Shahidi Fdoi
10.1016/j.foodchem.2017.08.071subject
Has Abstractpub_date
2018-02-01 00:00:00pages
1254-1261eissn
0308-8146issn
1873-7072pii
S0308-8146(17)31405-Xjournal_volume
240pub_type
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