Search: onr:"swepub:oai:research.chalmers.se:5d8e1f32-48b2-45f6-a51f-e3abff8bb3fd" >
Combining pressing ...
Combining pressing and alkaline extraction to increase protein yield from Ulva fenestrata biomass
-
- Juul, Louise (author)
- Århus Universitet,Aarhus University
-
- Steinhagen, Sophie (author)
- Gothenburg University,Göteborgs universitet,Institutionen för marina vetenskaper,SWEMARC,Institutionen för marina vetenskaper, Tjärnö marinlaboratoriet,Department of marine sciences,Department of marine sciences, Tjärnö Marine Laboratory
-
- Bruhn, A. (author)
- Århus Universitet,Aarhus University
-
show more...
-
- Jensen, S. K. (author)
- Århus Universitet,Aarhus University
-
- Undeland, Ingrid, 1968 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
-
- Dalsgaard, T. K. (author)
- Århus Universitet,Aarhus University
-
show less...
-
(creator_code:org_t)
- Elsevier BV, 2022
- 2022
- English.
-
In: Food and Bioproducts Processing: Transactions of the Institution of of Chemical Engineers, Part C. - : Elsevier BV. - 1744-3571 .- 0960-3085. ; 134, s. 80-85
- Related links:
-
https://research.cha... (primary) (free)
-
show more...
-
https://research.cha...
-
https://doi.org/10.1...
-
https://gup.ub.gu.se...
-
show less...
Abstract
Subject headings
Close
- Many seaweed species have a high production potential and attract interest as future protein sources. A high fiber and ash content, however, demand extraction of the protein to improve its digestibility and protein utilization in food or feed. This study explores three different approaches for protein extraction from Ulva fenestrata in order to maximize the protein extraction yield. Soluble protein was recovered either by mechanical pressing or by homogenization and osmotic shock of the biomass followed by alkaline extraction. The soluble protein was then concentrated by isoelectric precipitation. A combined procedure was carried out by pressing the biomass and following subjecting the residual pulp fraction to homogenization, osmotic shock and alkaline extraction. The three methods were ranked as follows with respect to protein extraction yield (as % of biomass protein); the combined method (23.9 ± 0.3%)> the alkaline extraction (6.8 ± 0.2%)> mechanical pressing (5.0 ± 0.2%). The significant increase when combining the methods was ascribed to a high precipitation yield after alkaline extraction of the pulp, hypothesized to be due to a reduced conductivity of the alkali-soluble protein fraction when derived from pulp rather than whole biomass.
Subject headings
- NATURVETENSKAP -- Biologi -- Biokemi och molekylärbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Biochemistry and Molecular Biology (hsv//eng)
- NATURVETENSKAP -- Kemi -- Analytisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Analytical Chemistry (hsv//eng)
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Industriell bioteknik -- Bioenergi (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Industrial Biotechnology -- Bioenergy (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Industriell bioteknik -- Biokatalys och enzymteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Industrial Biotechnology -- Biocatalysis and Enzyme Technology (hsv//eng)
- NATURVETENSKAP -- Biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering (hsv//eng)
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
Keyword
- Seaweed
- Alkaline extraction
- Protein extraction
- Precipitation
- Ulva
- Mechanical pressing
- Seaweed
- Ulva
- protein extraction
- alkaline extraction
- mechanical pressing
- precipitation
Publication and Content Type
- art (subject category)
- ref (subject category)
Find in a library
To the university's database