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Recovery of a protein-rich biomass from shrimp (Pandalus borealis) boiling water: A colloidal study
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- Forghani Targhi, Bita, 1973 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Ström, Anna, 1976 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Bordes, Romain, 1981 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- (creator_code:org_t)
- Elsevier BV, 2020
- 2020
- English.
- In: Food Chemistry. - : Elsevier BV. - 0308-8146 .- 1873-7072. ; 302, s. 125299-
- Journal article (peer-reviewed)
Abstract
Subject headings
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- Flocculation and sedimentation of a protein-rich biomass from shrimp boiling water (SBW) using food grade polysaccharides (carrageenan, alginate and carboxymethyl cellulose (CMC)) as flocculants was investigated at different pH-values. The effect of flocculant concentration on particle size and viscosity of SBW was also evaluated. Flocculation with carrageenan (0.45 g/L) at pH = 4 exhibited the most efficient protein sedimentation; protein concentration of the upper phase was here reduced by 77%, allowing 86% protein to be sedimented from SBW. Flocculation by alginate and CMC at pH = 4 showed 67% and 60% protein reduction of the upper phase at concentrations of 0.5 and 0.2 g/L, respectively. Contrary to alginate and CMC, carrageenan concentration affected the size distribution of flocs. Finally, carrageenan at 0.45 g/L and pH = 4 was successfully tested in a scaled up trial (5L) providing 78.5% protein recovery and a biomass with 75% protein on dry weight basis.
Subject headings
- LANTBRUKSVETENSKAPER -- Lantbruksvetenskap, skogsbruk och fiske -- Livsmedelsvetenskap (hsv//swe)
- AGRICULTURAL SCIENCES -- Agriculture, Forestry and Fisheries -- Food Science (hsv//eng)
Keyword
- Shrimp boiling water Protein Biomass recovery Flocculation Waste water Polyelectrolyte Polysaccharide
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