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Provedor de dados:  ArchiMer
País:  France
Título:  Enzymatic Hydrolysis of Yellowfin Tuna (Thunnus albacares) By-Products Using Protamex Protease
Autores:  Nguyen, Thi-my-huong
Sylla, Khalifa Serigne Babacar
Randriamahatody, Zo
Donnay-moreno, Claire
Moreau, Jacques
Luyen Thi Tran,
Berge, Jean-pascal
Data:  2011-01
Ano:  2011
Palavras-chave:  Tuna
Nitrogen recovery
Fish protein hydrolysates
Resumo:  Long-term proteolysis of tuna by-products (head, viscera and tail) by the wide spectrum protease Protamex has been investigated and compared. After hydrolysis, two fractions (soluble aqueous phase and insoluble sludge) were collected. Chemical compositions of each fraction and molecular mass distributions of soluble peptides were determined. Degrees of hydrolysis obtained after 12 h of hydrolysis of head, viscera and tail were 32.3, 16.8 and 22.2 %, respectively. Nitrogen recovery in the soluble fractions was 73.6 % for the head, 82.7 % for the viscera and 85.8 % for the tail. Lipid distribution indicated that the majority of lipids remained in the sludge. Such proteolysis appears useful for the production of very different fractions: one rich in peptides of medium to small molecular mass and poor in lipids, and another one containing the insoluble proteins and the majority of lipids.
Tipo:  Text
Idioma:  Inglês
Editor:  Faculty Food Technology Biotechnology
Formato:  application/pdf
Fonte:  Food Technology And Biotechnology (1330-9862) (Faculty Food Technology Biotechnology), 2011-01 , Vol. 49 , N. 1 , P. 48-55
Direitos:  2011 University of Zagreb

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