Enzymatic Hydrolysis of Yellowfin Tuna (Thunnus albacares) By-Products Using Protamex Protease

Type Article
Date 2011-01
Language English
Author(s) Nguyen Thi-My-Huong1, 2, Sylla Khalifa Serigne Babacar1, Randriamahatody Zo1, Donnay-Moreno Claire1, Moreau Jacques3, Luyen Thi Tran 2, Berge Jean-PascalORCID1
Affiliation(s) 1 : IFREMER, FR-44311 Nantes, France.
2 : Nha Trang Univ, Nha Trang, Vietnam.
3 : ENSAT, FR-31326 Castanet Tolosan, France.
Source Food Technology And Biotechnology (1330-9862) (Faculty Food Technology Biotechnology), 2011-01 , Vol. 49 , N. 1 , P. 48-55
WOS© Times Cited 33
Keyword(s) tuna, by-products, proteolysis, nitrogen recovery, fish protein hydrolysates
Abstract 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.
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Nguyen Thi-My-Huong, Sylla Khalifa Serigne Babacar, Randriamahatody Zo, Donnay-Moreno Claire, Moreau Jacques, Luyen Thi Tran, Berge Jean-Pascal (2011). Enzymatic Hydrolysis of Yellowfin Tuna (Thunnus albacares) By-Products Using Protamex Protease. Food Technology And Biotechnology, 49(1), 48-55. Open Access version : https://archimer.ifremer.fr/doc/00030/14142/