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  • 1
    Digitale Medien
    Digitale Medien
    Influence of the curing of the killer phenotype inSaccharomyces cerevisiae wine strains on their fermentative behaviour (1992)
    Springer
    World journal of microbiology and biotechnology 8 (1992), S. 147-150 
    Details
    ISSN: 1573-0972
    Schlagwort(e): Curing ; fermentative behaviour ; killer ; Saccharomyces cerevisiae
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Notizen: Abstract Fermentative behaviour and cell growth have been studied in grape juice inoculated either with two killerSaccharomyces cerevisiae wild strains or with their Acridine Orange-cured isogenic counterparts. The number of viable cells/ml at the beginning of the fermentation, as well as during exponential growth, were higher in grape juices inoculated with the cured strains. The CO2 production, fermentative rate and ethanol and acetic acid production were also higher in the cured strains, particularly during the stage of active fermentation. These differences, however, were minimal at the end of the fermentations.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01195835
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    An ab initio study of oxygen vacancies and doping process of Nb and Cr atoms on TiO2 (110) surface models (1997)
    New York, NY : Wiley-Blackwell
    International Journal of Quantum Chemistry 65 (1997), S. 625-631 
    Details
    ISSN: 0020-7608
    Schlagwort(e): ab initio ; oxygen vacancy ; doping ; titanium oxide surface ; varistor ceramics ; Chemistry ; Theoretical, Physical and Computational Chemistry
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie
    Notizen: We theoretically investigated how the formation of oxygen vacancies and the addition of niobium and chromium atoms as dopants modify the varistor properties of TiO2. The calculations were carried out at the HF level using a contracted basis set, developed by Huzinaga et al., to represent the atomic centers on the (110) surface for the large (TiO2)15 cluster model. The change of the values for the net atomic charges and band gap after oxygen vacancy formation and the presence of dopants in the lattice are analyzed and discussed. It is shown that the formation of oxygen vacancies decreases the band gap while an opposite effect is found when dopants are located in the reduced surface. The theoretical results are compared with available experimental data. A plausible explanation of the varistor behavior of this system is proposed.   © 1997 John Wiley & Sons, Inc. Int J Quant Chem 65: 625-631, 1997
    Zusätzliches Material: 1 Ill.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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