Enzymatic hydrolysis of cuttlefish (Sepia officinalis) and sardine (Sardina pilchardus) viscera using commercial proteases: Effects on lipid distribution and amino acid composition

Type Article
Date 2009-02
Language English
Author(s) Kechaou Emna2, 3, Durnay Justine1, Donnay-Moreno Claire1, Jaouen Pascal2, Gouygou Jean-Paul1, Berge Jean-PascalORCID1, Ben Arnar Raja3
Affiliation(s) 1 : IFREMER, Dept STAM, F-44311 Nantes, France.
2 : Univ Nantes, GEPEA, CNRS, UMR 6144, F-44602 St Nazaire, France.
3 : Fac Sci Sfax, Lab Sci Mat & Environm, Sfax 3018, Tunisia.
Source Journal of Bioscience and Bioengineering (1389-1723) (Elsevier), 2009-02 , Vol. 107 , N. 2 , P. 158-164
DOI 10.1016/j.jbiosc.2008.10.018
WOS© Times Cited 55
Keyword(s) Sardine, Viscera, Proteolysis, Marine lipids, Cuttlefish, By products
Abstract Total lipid and phospholipid recovery as well as amino acid quality and composition from cuttlefish (Sepia officinalis) and sardine (Sardina pilchardus) were compared. Enzymatic hydrolyses were performed using the three proteases Protamex, Alcalase, and Flavourzyme by the pH-stat method (24 h, pH 8, 50 degrees C). Three fractions were generated: an insoluble sludge, a soluble aqueous phase, and an oily phase. For each fraction, lipids, phospholipids, and proteins were quantified. Quantitative and qualitative analyses of the raw material and hydrolysates were performed. The degree of hydrolysis (DH) for cuttlefish viscera was 3.2% using Protamex, 6.8% using Flavourzyme, and 7% using Alcalase. DH for sardine viscera was 1.9% (using Flavourzyme), 3.1% (using Protamex) and 33% (using Alcalase). Dry matter yields of all hydrolysis reactions increased in the aqueous phases. Protein recovery following hydrolysis ranged from 57.2% to 64.3% for cuttlefish and 57.4% to 61.2% for sardine. Tissue disruption following protease treatment increased lipid extractability, leading to higher total lipid content after hydrolysis. At least 80% of the lipids quantified in the raw material were distributed in the liquid phases for both substrates. The hydrolysed lipids were richer in phospholipids than in the lipids extracted by classical chemical extraction, especially after Flavourzyme hydrolysis for cuttlefish and Alcalase hydrolysis for sardine. The total amino acid content differed according to the substrate and the enzyme used. However, regardless of the raw material or the protease used, hydrolysis increased the level of essential amino acids in the hydrolysates, thereby increasing their potential nutritional value for feed products. (C) 2008, The Society for Biotechnology, Japan. All rights reserved.
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Kechaou Emna, Durnay Justine, Donnay-Moreno Claire, Jaouen Pascal, Gouygou Jean-Paul, Berge Jean-Pascal, Ben Arnar Raja (2009). Enzymatic hydrolysis of cuttlefish (Sepia officinalis) and sardine (Sardina pilchardus) viscera using commercial proteases: Effects on lipid distribution and amino acid composition. Journal of Bioscience and Bioengineering, 107(2), 158-164. Publisher's official version : https://doi.org/10.1016/j.jbiosc.2008.10.018 , Open Access version : https://archimer.ifremer.fr/doc/00000/6366/