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Studies on growth and filtration of the antagonistic biocontrol yeast Cryptococcus albidus
Includes bibliographical references.
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| Main Author: | |
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| Other Authors: | |
| Format: | Thesis |
| Language: | English |
| Published: |
Centre for Bioprocess Engineering Research
2015
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| _version_ | 1867613169376034816 |
|---|---|
| access_status_str | Open Access |
| author | Pickering, Mark |
| author2 | Harrison, STL |
| author_browse | Harrison, STL Pickering, Mark |
| author_facet | Harrison, STL Pickering, Mark |
| author_sort | Pickering, Mark |
| collection | Thesis |
| description | Includes bibliographical references. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/12792 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:31:52.071Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2015 |
| publishDateRange | 2015 |
| publishDateSort | 2015 |
| publisher | Centre for Bioprocess Engineering Research |
| publisherStr | Centre for Bioprocess Engineering Research |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/12792 Studies on growth and filtration of the antagonistic biocontrol yeast Cryptococcus albidus Pickering, Mark Harrison, STL Bioprocess Engineering Includes bibliographical references. A high filtration resistance has been found to hinder the dewatering of the antagonistic biocontrol yeast Crytococcus albidus. Throught literature a hypothesis was developed that the extracellular polysaccharide produced by C. albidus is the major cause of hindrance to the filtration process. Microscopic analysis of C. albidus cultures illustrated cell-bound extracellular capsule. Viscosity measurements and visual observations of precipitation of the polysaccharide with ethanol were evidence extracellular polysaccharide suspended in the surrounding media. In this study, alteration of the composition of the growth medium and various pre-filtration treatments of the yeast harvest were investigated to improve filterability. The treatments included washing the yeast to remove suspended macromolecules, exposing the yeast suspension to a high shear environment to reduce the quantity of cell-bound polysaccharide, and varying suspension temperature. Us of Saccharomyces cerevisiae (Baker's yeast) and diatomaceous earth (DAE) as filter aids were investigated as a means of further improving filterability. 2015-05-13T14:17:40Z 2015-05-13T14:17:40Z 2005 Master Thesis Masters MSc http://hdl.handle.net/11427/12792 eng application/pdf Centre for Bioprocess Engineering Research Faculty of Engineering and the Built Environment University of Cape Town |
| spellingShingle | Bioprocess Engineering Pickering, Mark Studies on growth and filtration of the antagonistic biocontrol yeast Cryptococcus albidus |
| thesis_degree_str | Master's |
| title | Studies on growth and filtration of the antagonistic biocontrol yeast Cryptococcus albidus |
| title_full | Studies on growth and filtration of the antagonistic biocontrol yeast Cryptococcus albidus |
| title_fullStr | Studies on growth and filtration of the antagonistic biocontrol yeast Cryptococcus albidus |
| title_full_unstemmed | Studies on growth and filtration of the antagonistic biocontrol yeast Cryptococcus albidus |
| title_short | Studies on growth and filtration of the antagonistic biocontrol yeast Cryptococcus albidus |
| title_sort | studies on growth and filtration of the antagonistic biocontrol yeast cryptococcus albidus |
| topic | Bioprocess Engineering |
| url | http://hdl.handle.net/11427/12792 |
| work_keys_str_mv | AT pickeringmark studiesongrowthandfiltrationoftheantagonisticbiocontrolyeastcryptococcusalbidus |