Browsing by Supervisor "Daniel, Roy M."

Now showing items 1-8 of 8

  • Antarctic bacteria and enzyme temperature optima

    Hawkins, Sarah Kate (The University of Waikato, 2003)
    The temperature optimum of enzyme activity, as recently described by Daniel et al. (2001), is thought to play a central role in the adaptation of an enzyme to its environmental temperature. The aim of this research was to ...

  • Comparative characterisation of esterases and lipases for biosensors

    Lind, Penelope A. (The University of Waikato, 2002)
    Twenty four carboxylesterases and lipases from various microbial sources were compared with commercial pig liver esterase in order to determine which would be most appropriate for use in a biosensor application and in the ...

  • Evidence for a third thermal parameter of enzymes

    Peterson, Michelle E. (The University of Waikato, 2005)
    This thesis describes tests of a new hypothesis describing the effect of temperature on enzyme activity. Traditionally, the dependence of enzyme activity on temperature has been described by a model (the 'Classical Model') ...

  • Microbial abundance and diversity surrounding mummified seals in Miers Valley, Antarctica

    Robson, Lisa Marie (The University of Waikato, 2004)
    The presence of a number of mummified seal carcasses have been reported in the Dry Valleys of Antarctica. The location of seal carcasses were observed up to 240km in-land, and approximately 1500m above sea level. The ...

  • The activity and dynamics of enzymes

    Dunn, Rachel V. (The University of Waikato, 2002)
    It is generally accepted that enzymes require internal flexibility, or the activation of anharmonic motions, for catalytic activity. However, in general, the timescales and forms of the functionally important motions coupled ...

  • Thermophilic enzymes and their impact on milk powder during storage

    Chen, Lin (The University of Waikato, 2000)
    Milk powder quality and storage life can be compromised by functionality and flavour defects. These defects can be the result of chemical or biochemical reactions, such as the Maillard (browning) reaction, proteolysis and ...

  • Thermostable proteases from thermophilic microorganisms

    Toogood, Helen S. (The University of Waikato, 1998)
    Two metallo-proteases, EA1 and YP-T proteases from Bacillus st. EA1 and B. caldolyticus st. YP-T, respectively, differ in amino acid sequence by only one residue (Val61 = Gly61 in EA1 and YP-T respectively). Yet EA1 protease ...

  • Two thermostable hemicellulases and their effects on wood pulps

    Bicho, Paul A. (The University of Waikato, 1992)
    Two hemicellulases, cloned from a thermophilic anaerobe (isolate TP8 6.3.3.1) were partially purified and characterised. The ability of these enzymes to hydrolyse the hemicellulose components of various types of pulps and ...