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Partitioning of hyd...
Partitioning of hydrophobic amino acids and oligopeptides in aqueous two-phase system containing self-aggregating block copolymer - Effects of temperature, salts and surfactants
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Svensson, Mårten (author)
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Joabsson, Fredrik (author)
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- Linse, Per (author)
- Lund University,Lunds universitet,Fysikalisk kemi,Enheten för fysikalisk och teoretisk kemi,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Physical Chemistry,Physical and theoretical chemistry,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH
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- Tjerneld, Folke (author)
- Lund University,Lunds universitet,Biokemi och Strukturbiologi,Centrum för Molekylär Proteinvetenskap,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Biochemistry and Structural Biology,Center for Molecular Protein Science,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH
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(creator_code:org_t)
- 1997
- 1997
- English.
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In: Journal of Chromatography A. - 0021-9673. ; 761:1-2, s. 91-101
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http://dx.doi.org/10...
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Abstract
Subject headings
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- The partitioning of hydrophobic amino acids and oligopeptides in the Pluronic P105-dextran-water system has been studied. Pluronic P105 is a member of a family of triblock copolymers with the structure PEO-PPO-PEO, where PEO is poly(ethylene oxide) and PPO poly(propylene oxide). The partitioning was studied for tryptophan, phenylalanine and di- and tri-peptides composed of these amino acids at 5 and 40oC. These temperatures correspond to a unimeric (5oC) and a micellar (40oC) state of the P105 molecule. Partitioning depended strongly on the temperature which is attributed to the increased hydrophobicity of Pluronic P105 with increasing temperature. However, it appears that the presence of the micelles plays no major direct role. The effect of different pH, salts and surfactants (both cationic and anionic) on partitioning has also been investigated.
Subject headings
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
- NATURVETENSKAP -- Biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences (hsv//eng)
Keyword
- Partitioning
- Temperature effects
- Amino acids
- Peptides
- Pluronic P105
- Tryptophan
- Phenylalanine
Publication and Content Type
- art (subject category)
- ref (subject category)
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