Experimental Study of the thermophysical properties of biogenic Substances
- Nachwachsende Rohstoffe und neue Technologien
- Lebensmittel, Ernährung, Gesundheit
- Biotechnologie
- Forschungscluster "Bioindustrielle Technologien"
- Forschungscluster "Pflanzen"
Abstract
Proteins and other biogenic material are produced increasingly from biotechnology or renewable resources. The separation and purification of these substances is very important and expansive. The knowledge of the thermophysical properties of these substances and their aqueous solutions is essential for the understanding and modeling of the separation processes. One outstanding example is the folding transition (denaturation or refolding) of proteins in solutions or during adsorption. Thermophysical properties and folding transitions of proteins in aqueous solutions and during adsorption are to be measured by DSC calorimetry. The focus will be mostly on the adsorption of proteins. The folding transition of adsorbed proteins occurs often at lower temperatures and with a smaller enthalpy difference than in the free solution. This has practical importance in chromatography or can be used technically for the refolding of denatured proteins. Also other methods are available to measure the folding transitions in solutions, as FTIR spectrometry with Circular Dichroism (CD) and DSD densimetry, for comparison and complementation of the DSC results
Publications
Measurements of the Water Activity with FTIR Spectroscopy
Autoren: T. Choosri, M. Wendland Jahr: 2008
Conference & Workshop proceedings, paper, abstract
external links and characteristics of the publication:A New Method for the Measurement of the Water Activity or Relative Humidity by Fourier Transform Infrared Spectroscopy
Autoren: Choosri, T; Koglbauer, G; Wendland, M Jahr: 2009
Journal articles
Project staff
Martin Wendland
ao.Univ.Prof. Dipl.-Ing.Dr. Martin Wendland
martin.wendland@boku.ac.at
Tel: +43 1 47654-89352
Project Leader
01.11.2006 - 31.10.2009
Johann Fischer
em.o.Univ.Prof. Dr. Johann Fischer
johann.fischer@boku.ac.at
Project Staff
01.11.2006 - 31.10.2009