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  1. No Access

    Article

    A rapid method for breath analysis in cystic fibrosis patients

    For easy handling and speed of lung diseases diagnostics, approaches based on volatile organic compounds (VOCs), including those emitted by pathogenic microorganisms, are considered but currently require consi...

    R. Kramer, A. Sauer-Heilborn, T. Welte… in European Journal of Clinical Microbiology … (2015)

  2. No Access

    Article

    Microbial diversity of supra- and subgingival biofilms on freshly colonized titanium implant abutments in the human mouth

    Supra- and subgingival biofilm formation is considered to be mainly responsible for early implant failure caused by inflammations of periimplant tissues. Nevertheless, little is known about the complex microbi...

    W. Heuer, M. Stiesch, W. R. Abraham in European Journal of Clinical Microbiology … (2011)

  3. No Access

    Reference Work Entry In depth

    Microcosms for Biofilm Analysis on Hydrophobic Substrates – A Multiple Approach to Study Biodiversity, Metabolic Activity and Biofilm Structure and Dynamic

    Microcosms have been developed to grow biofilm communities on hydrophobic compounds using soil or sediment samples as inoculum. The resulting biofilms were monitored by a combination of Single Strand Conformat...

    A. J. Macedo, W. R. Abraham in Handbook of Hydrocarbon and Lipid Microbiology (2010)

  4. No Access

    Reference Work Entry In depth

    Biosynthetic Oils, Fats, Terpenes, Sterols, Waxes: Analytical Methods, Diversity, Characteristics

    In the last century water distillation, the method of choice for many centuries to extract hydrophilic compounds from complex biological matrices, was more and more replaced by various chromatographic methods....

    W.-R. Abraham in Handbook of Hydrocarbon and Lipid Microbiology (2010)

  5. No Access

    Article

    In situ experimental evidence of the fate of a phytodetritus pulse at the abyssal sea floor

    More than 50% of the Earth' s surface is sea floor below 3,000 m of water. Most of this major reservoir in the global carbon cycle and final repository for anthropogenic wastes is characterized by severe food ...

    U. Witte, F. Wenzhöfer, S. Sommer, A. Boetius, P. Heinz, N. Aberle, M. Sand… in Nature (2003)

  6. No Access

    Article

    Bacterial community dynamics during biostimulation and bioaugmentation experiments aiming at chlorobenzene degradation in groundwater

    A set of microcosm experiments was performed to assess different bioremediation strategies, i.e., biostimulation and bioaugmentation, for groundwater contaminated with chlorobenzenes. The biodegradative potent...

    D. F. Wenderoth, P. Rosenbrock, W. -R. Abraham, D. H. Pieper… in Microbial Ecology (2003)

  7. No Access

    Article

    Stereoselectivity of microbial oxygenation of metallocene sulphides with different substituent size and central atom

     Stereoselectivity in the oxidation of ferrocenyl sulphides with several species of microorganisms such as Corynebacterium equi was reversed between (methylthiomethyl)ferrocene and (t-butylthiomethyl)ferrocene, i...

    Y. Yamazaki, C. Hesse, H. Okuno, W.-R. Abraham in Applied Microbiology and Biotechnology (1996)

  8. No Access

    Article

    Phylogenetic influences in microbial hydroxylation of terpenoids

    Forty strains of bacteria and 60 of fungi were screened with globulol, 1,8-cineol and cedrol and the strains compared, on the basis of the resulting products, using multivariate analyses. The taxonomic positio...

    W. -R. Abraham in World Journal of Microbiology and Biotechnology (1994)

  9. No Access

    Article

    Microbial formation of caparrapidiol and derivatives from trans-nerolidol

    Of 60 fungi and 40 bacteria, five strains, all belonging to the genus Fusarium, were able to hydrate (S)-trans-nerolidol to caparrapidiol. Fusarium moniliforme DSM 764 and F. tabacinum DSM 2125 oxidized trans-ner...

    W.-R. Abraham in World Journal of Microbiology and Biotechnology (1993)

  10. No Access

    Article

    Microbial transformation of 3-desoxy-dihydromorphinanes

    3-Desoxymorphinanes should be transformed by microbial hydroxylation of the aromatic ring to morphinanes. Instead of this reaction the investigated N-derivatives (H, CH3, COCH2OH and COCH2OCH2CH3) are reduced by ...

    G. Spassov, W. R. Abraham, K. Kieslich… in Applied Microbiology and Biotechnology (1986)

  11. No Access

    Article

    Microbial transformations of galanthamin-precursors

    Galanthamin is a medical important alkaloid. Its chemical synthesis gives a racemic product in low yields. Starting with a belladinderivative an enzymatic ring closure should lead exclusively to a chiral produ...

    G. Spassov, W. R. Abraham, K. Kieslich, R. Vlahov… in Applied Microbiology and Biotechnology (1986)

  12. No Access

    Article

    Microbial transformations of N-(4-chlorphenyl)-benzoisothiazolone

    The microbial degradation of N-(4-chlorphenyl)-benzoisothiazolone (1) was studied by Streptomyces species in analogy to the metabolism of this drug in animals. As main metabolite 2-thiomethyl-N-(4-chlorphenyl)-be...

    B. Stumpf, W. R. Abraham, K. Kieslich in Applied Microbiology and Biotechnology (1986)