Search for dissertations about: "Aspergillus"

Showing result 1 - 5 of 61 swedish dissertations containing the word Aspergillus.

  2. 1. Galactoglucomannan-degrading enzymes from Aspergillus niger

    Author : Pia Ademark; Biokemi och Strukturbiologi; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; beta-mannanase; Aspergillus niger; beta-mannosidase; alpha-galactosidase; purification; hydrolysis; cloning; galactoglucomannan; expression; Biochemistry; Metabolism; Biokemi;

    Abstract : Galactoglucomannan and galactomannan are among the most abundant plant polysaccharides in nature. The central enzymes involved in their degradation, i.e., endo-1,4-beta-mannanase (beta-mannanase, EC 3. READ MORE

  4. 2. Malic acid production by Aspergillus oryzae

    Author : Christoph Knuf; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; C4 dicarboxylic acids; Aspergillus oryzae; systems biology; fermentation; malic acid; metabolic engineering;

    Abstract : Malic acid is a C4 dicarboxylic acid which is used as an acidulant in food and beverages. It isalso considered as a bio-building block to replace petrochemically derived compounds in thepost oil era. This organic acid can be biotechnologically derived from fermentation usingrenewable feedstocks as carbon source. READ MORE

  5. 3. Analysis of Secondary Metabolites from Aspergillus fumigatus and Penicillium nalgiovense : Antimicrobial Compounds from Filamentous Fungi Isolated from Extreme Environments

    Author : Stefan Svahn; Lars Bohlin; Björn Olsen; Ulf Göransson; Erja Chryssanthou; Douglas Kinghorn; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Aspergillus fumigatus; Penicillium nalgiovense; secondary metabolites; invasive aspergillosis; elicitation; gliotoxin; bis methyl gliotoxin; amphotericin B; Pharmacognosy; Farmakognosi;

    Abstract : This thesis describes the cultivation and extraction of filamentous fungi isolated from extreme environments in the search for new antibiotic compounds. Filamentous fungi are a rich source of medicines including antibiotics, and it is believed that many currently unknown fungal species and bioactive fungal metabolites remain to be discovered. READ MORE

  6. 4. Discovery of Novel Fatty Acid Dioxygenases and Cytochromes P450 : Mechanisms of Oxylipin Biosynthesis in Pathogenic Fungi

    Author : Inga Hoffmann; Ernst H Oliw; Alan R Brash; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Fusion protein; Linoleate diol synthase; Allene oxide synthase; Cyclooxygenase; Oxygenase; HPLC; Mass spectrometry; Hydroperoxide isomerase; Aspergillus; Fusarium oxysporum; Pharmaceutical Biochemistry; Farmaceutisk biokemi; Farmaceutisk farmakologi; Pharmaceutical Pharmacology; Farmaceutisk vetenskap; Pharmaceutical Science;

    Abstract : Dioxygenase-cytochrome P450 (DOX-CYP) fusion enzymes are present in diverse human and plant pathogenic fungi. They oxygenate fatty acids to lipid mediators which have regula­tory functions in fungal development and toxin production. READ MORE

  7. 5. Systems Biology of Glucose Sensing and Repression in Aspergillus niger: Lessons from Genomics and Transcriptomics

    Author : Margarita Salazar Pena; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; A. niger; Aspergillus spp.; Transcription Factors; Regulation; Metabolism; Transcriptomics;

    Abstract : Aspergillus comprises a genus of multicellular eukaryotic microorganisms containing close to 200 different species. Among them, the filamentous fungus Aspergillus niger exhibits great diversity in its phenotype and it is found, both in marine and terrestrial habitats. A. niger produces many metabolites that are valuable commodities, e. READ MORE