Browsing by Author "Daniel, Roy M."

Now showing items 1-5 of 132

  • Active-site- and substrate-specificity of Thermoanaerobium Tok6-B1 pullulanase.

    Plant, Adrian R.; Clemens, Robyn M.; Morgan, Hugh W.; Daniel, Roy M. (1987)
    Thermoanaerobium Tok6-B1 pullulanase (EC was active on alpha 1-6-glucosidic linkages of pullulan, amylopectin and glycogen and the alpha 1-4 linkages of amylose, amylopectin and glycogen but not of pullulan. ...
  • The activity of family 11 xylanases at alkaline pH

    Gibbs, M.D.; Reeves, R.A.; Hardiman, E.M.; Choudhary, P.R.; Daniel, Roy M.; Bergquist, Peter L. (Elsevier, 2010)
    Xylanases have several industrial uses, particularly in baking, modification of animal feed and in pulp bleaching in the paper industry. Process conditions in kraft pulp bleaching generally favour an enzyme that is active ...
  • The alleged absence of ubiquinone from elasmobranchs

    Daniel, Roy M.; Redfearn, E.R. (1966)
    It has recently been suggested (Diplock & Haslewood, 1964) that certain lower vertebrates such as elasmobranchs and crocodylians are lacking in ubiquinone. Also, in a study of the lesser-spotted dogfish (Scyliorhinus ...
  • Anaerobic growth and denitrification by Rhizobium japonicum and other rhizobia

    Daniel, Roy M.; Smith, I.M.; Phillip, J.A.D.; Ratcliffe, H.D.; Drozd, J.W.; Bull, A.T. (1980)
    The product of nitrate respiration in Rhizobium japonicum and a number of other rhizobia capable of anaerobic growth utilizing nitrate was N2O. No N2 or ammonia was formed. Nitrate reduction was linked to ATP formation ...
  • Anaerobic growth, nitrate reduction and denitrification in 46 rhizobium strains

    Daniel, Roy M.; Limmer, A.W.; Steele, K.W.; Smith, I.M. (1982)
    A total of 46 rhizobial strains were assessed for anaerobic growth in the presence of nitrate, and, using the criteria of nitrate utilization and nitrous oxide and nitrogen production, for their ability to denitrify. Nitrite ...

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  • 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 were partially purified and characterised. The ability of these enzymes to hydrolyse the hemicellulose components of various types of pulps 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 ...
  • 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 ...
  • 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 ...
  • 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 ...

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