Sökning: "expanded bed"
Visar resultat 1 - 5 av 18 avhandlingar innehållade orden expanded bed.
1. Fast isolation of proteins from bioreactors using affinity chromatography techniques
Sammanfattning : The purification of proteins from raw materials like fermentation broth and other biological sources usually involves several purification steps and is rather time consuming and expensive. This is a major concern in the production of many important protein products e.g. pharmaceuticals such as insulin and blood coagulation factors. LÄS MER
2. Bioprocess Monitoring and Control in Pseudomonas cepacia and recombinant Escherichia coli cultivations
Sammanfattning : The control of cultivation conditions and its influence on growth and production have been investigated. The use of fed-batch processes have been demonstrated for several cultivation systems and so has the use of different control signals in these systems. LÄS MER
3. A study of some operational parameters in expanded bed adsorption of proteins
Sammanfattning : .... LÄS MER
4. Production and engineering of a xyloglucan endo-transglycosylase from Populus tremula x tremuloides
Sammanfattning : The aim of this work was to develop a production process for the enzyme xyloglucan endo-transglycosylase from Populus tremula x tremuloides (PttXET16-34). The natural transglycosylating activity of this enzyme has previously been employed in a XET-Technology. LÄS MER
5. Polyelectrolytes and Polycomplexes in Biotechnology
Sammanfattning : Polyelectrolytes and polyelectrolyte complexes (PECs) are characterized by many useful properties that endow them with high potential in different areas of biotechnology. This thesis describes the development and analyses of some new systems and methods utilizing poly(acrylic acid) (PAA), poly(methacrylic acid) (PMA), poly (N-ethyl-4-vinylpyridinium bromide) (PEVP) and PMA-PEVP complexes. LÄS MER