Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 16 of 16 for “"yeast cell wall"”.
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Yeast cell wall proteomics: a tale of two proteins.
This thesis investigates cell wall proteins, the presence of which increased in concentration as a result of stress. Two such proteins were found, phosphoglycerate mutase and Hsp 12. Studies on these proteins are reported in chapters 2 (phosphoglycerate mutase) and chapter 3 (Hsp 12).
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Production and characterisation of yeast cell wall preparations with binding activity against Salmonella and Escherichia coli.
… can potentially provide this. Abundant in the cell wall of Saccharomyces cerevisiae as well as other yeast species, MOS have the capacity to inhibit type 1 fimbriae containing pathogenic bacteria from binding to host tissue and thus prevent infection. Alterations in the growing conditions of …
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Effects of inulin or yeast cell wall extract on nutrient digestibility and fecal fermentative end-product concentrations of healthy adult dogs fed raw diets
… was to determine the effects of inulin or yeast cell wall extract (YCW) on macronutrient digestibility, blood cell and metabolite concentrations, and fecal fermentative end-product concentrations in healthy adult dogs fed raw diets. Six adult female beagles (5.5 ± 0.5 yr; 8.5 ± 0.5 kg) were …
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Improving product release from saccharomyces cerevisiae and kluyveromyces lactis by pretreatment for cell wall weakening and selective product release
Efficient intracellular product release from yeast is required for the recovery of many bioproducts, recombinant or other. Traditionally such product release is achieved by non-selective, energy demanding mechanical disruption. The fine debris resulting from mechanical disruption is also …
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Yeast-based vaccine approaches to cancer immunotherapy
Saccharomyces cerevisiae stimulates dendritic cells and represents a promising candidate for cancer immunotherapy development. Effective cross-presentation of antigen delivered to dendritic cells is necessary for successful induction of cellular immunity. Using a yeast vaccine model, we …
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Yeast flocculation: understanding cell surface structure-function relationships in industrial yeast strains
… or substrate invasion, biofilm formation and cell-cell aggregation. One of such controlled forms of cellular adhesion in yeast that occurs preferentially in the liquid environments is a process of asexual aggregation of cells which is also referred to as flocculation. The timing during growth …
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Genetic and epigenetic regulation of the cell wall glycoproteins, Flo10p and Flo11p, generate phenotypic variation in S. cerevisiae
… variation among populations of the bakers' yeast, Saccharomyces cerevisiae. This phenotypic variation, most easily identified as a switching between smooth and wrinkled colony morphologies, involves changes in several adhesive and morphological phenotypes. Experiments reveal that this …
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Towards Artificial Photosynthesis: Yeast-Inorganic Hybrid System
… waste to favor reduced product formation in yeast. In this work, we build on a system we recently developed to collect and remediate heavy metals from solution through genetic engineering of the yeast Saccharomyces cerevisiae. Yeast are genetically engineered to produce hydrogen sulfide that …
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Effects of yeast products on immune response and intestinal health of dogs and mice
… continued to increase in the pet food industry. Yeast products may serve as functional ingredients due to their potential health benefits as shown in livestock and rodents. Previous studies in dogs demonstrated some positive results of yeast supplementation in terms of modulating a few specific …
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Cell surface analysis of the basidiomycete yeast cryptococcus neoformans
Cell surface properties of the basidiomycete yeast Cryptococcus neoformans were investigated with a combination of novel and well proven approaches. Non-specific cell adhesion forces, as well as exposed carbohydrate and protein moieties potentially associated with specific cellular interaction, …
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Yeast engineering for pharmaceutical and nutraceutical purposes
… a genus of fungi consisting of many species of yeast strains including S. cerevisiae and S. boulardii, and has been engineered for implementing economic processes for producing biofuels and chemicals. However, this microorganism has restricted capabilities for producing other biomolecules than …
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Evaluating the efficacy of brewers’ yeast-derived functional feed additives in mitigating soybean meal-induced enteritis in Atlantic salmon
… additives such as those derived from brewers’ yeast (Saccharomyces cerevisiae) have emerged as a promising strategy to mitigate such diet-induced pathologies and support immune regulation. This thesis investigates the efficacy of structurally distinct brewers’ yeast-derived additives, including …
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Impact of dietary functional yeast additives on growth performance and health of selected key aquaculture species
… fish health and performance. Among these, yeast-derived additives have garnered significant attention for their nutritional benefits and proven ability to promote growth and strengthen immune responses in fish.<br/>This study evaluates the effects of dietary brewer's yeast-derived additives …
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Evaluation of Essential Oils (Stay Strong) for Dairy Calves
… achieve optimal performance when compared to a yeast cell wall (YCW). One hundred Holstein calves were blocked by birth date and randomly assigned to 1 of 5 treatments. Treatments were: Control (C): a 24:20 MR, EO mixed into 24:20 MR at a rate of 1.25 g/feeding (EO-0.5), 2.5 g/feeding (EO-1.0) …
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Food safety through fungal disease and mycotoxin mitigation on dairy farms: From field to feed and the rumen
… to halt fungus growth, while AD such as clay and yeast work in the rumen to mitigate the negative effects associated with the consumption of mycotoxins on WPCS and other feedstuffs. This research aimed to delve into the consequences of foliar FUN on WPCS and of feeding AD to cows challenged by …
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Regulation of Morphogenetic Events in Saccharomyces cerevisiae
… polarized secretion and modification of the cell wall at the growing tip. The genetic requirements for initiating polarized growth are perhaps best understood for the model budding yeast, Saccharomyces cerevisiae. Once the cell is committed to enter the cell cycle by activation of G1 …