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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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Showing 101 to 110 of 424 (0.012 seconds)| 101 |
Solid-state fermentation : the growth of micro-organisms on defined solid matrix and use of non-invasive monitoring methodsTse, K. Y. K. January 1995 (has links)
The aim of this project was to investigate some of the problems of solid-state fermentation. This technology is currently of limited use because of the complexity of traditional raw materials which make up the fermenting matrix and the inability to measure and control the fermentations. A novel, general purpose, cellulose based defined medium consisting of a liquid growth medium (75% w/w) absorbed onto a purified cellulose powder gave good growth of <I>Asperigillus niger </I>(IMI 17809) and <I>Rhizopus oligosporus </I>(IMI 205108), in a forced-aerated packed bed column fermenter. The defined medium allowed the monitoring of the fermentation by direct analysis of the matrix including substrate consumption, growth, and end product formation. Indirect monitoring of growth and activity was also performed by measurement of carbon dioxide production rate and by observing the changes in mixing and bed characteristics of the fermenter by gas tracer methods. Experiments were performed to determine the influence of temperature, inoculum size and substrate concentration on the growth and activity of <I>A. niger. </I>Using <I>R. oligosporus,</I> studies were made to compare its growth characterics with those of <I>A. niger. </I>The experimental data were analysed to determine correlations between microbial growth and activity with the consumption and production of materials. Only CO<SUB>2</SUB> production rates correlated well with growth, while substrate consumption and product formation did not. This is in contrast to liquid culture experiments with these organisms, where substrate uptake was related to growth. Microbial activity in the matrix could also be correlated to physical changes of the bed, as indicated by the tracer responses. The nature of the matrix (e.g. packing density) was an important consideration when applying the technique.
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ATP-competitive inhibitors as antifungals : Targeting the spectoria triticic kinomeMorgan, R. M. L. January 2010 (has links)
No description available.
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The effects of atmospheric change on arbuscular mycorrhizal fungal communitiesCotton, Theresa Elizabeth Anne January 2010 (has links)
No description available.
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Overexpression of secondary metabolism genes from Magnaporthe grisea and Beauveria bassiana speciality : fungal biotechnologyBakker, Walid Ismail Mohammed Mohammed January 2011 (has links)
No description available.
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Functional characterisation of reactive oxygen species-related genes in Mycosphaerella graminicola, an economically important pathogen of wheatDeller, Sian January 2009 (has links)
No description available.
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Genetic manipulation of fungal secondary metabolismWilliams, Katherine January 2010 (has links)
No description available.
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Studies on Phytophthora infestans (Mont.) DeBaryClayson, A. M. January 1958 (has links)
No description available.
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Fomes annosus : host-parasite relationshipsGibbs, J. N. January 1967 (has links)
No description available.
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Studies on yeast cell wallsDyke, K. G. H. January 1963 (has links)
No description available.
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| 110 |
The ecology of orchid mycorrhizal fungiHarley, S. E. January 1965 (has links)
No description available.
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