Owusu, RK, MAKHZOUM, A and KNAPP, J (1991) The thermodynamic stability of lipases and proteases from psychrotrophic bacteria. Food Chemistry, 39 (2). p. 187. [Journal article]
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The thermodynamic or conformational stability of psychrotroph lipases and proteases, measured as the Gibbs free energy difference (ΔG) between the native and denatured enzymes, were estimated from enzyme temperature-activity profile data. ΔG estimates of 8–10 kJ/mol and 16–17 kJ/mol were obtained for psychrotroph-derived lipases and proteases, respectively. Pseudomonas fluorescens strain AR-11 protease was unusually thermolabile (ΔG = 3·0–7·6 kJ/mol). These values were compared with values for some mesophilic and thermophilic enzymes and the possible relationship of ΔG to psychrotrophic enzyme heat-resistance is discussed.
|Item Type:||Journal article|
|Faculties and Schools:||Faculty of Life and Health Sciences|
Faculty of Life and Health Sciences > School of Biomedical Sciences
|Research Institutes and Groups:||Biomedical Sciences Research Institute|
Biomedical Sciences Research Institute > Northern Ireland Centre for Food and Health (NICHE)
|Deposited By:||Dr Richard Owusu-Apenten|
|Deposited On:||01 Feb 2011 13:26|
|Last Modified:||01 Feb 2011 13:26|
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