Enzyme activity in organic solvent as a function of water activity determined by membrane inlet mass spectrometry

Degn, Hans and Lloyd, David ORCID: https://orcid.org/0000-0002-5656-0571 1992. Enzyme activity in organic solvent as a function of water activity determined by membrane inlet mass spectrometry. Biotechnology Techniques 6 (2) , pp. 161-164. 10.1007/BF02438824

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Abstract

Membrane inlet mass spectrometry (MIMS) is introduced as a method for measuring water activity in nonpolar solvents, aqueous solutions and gas phase. The determination of the rate of hydrolysis of diphenyl carbonate by porcine liver esterase as a function of water activity in diisopropyl ether is presented as an example. A linear relationship is found between the enzyme activity and the water activity.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Biosciences
Publisher:	Springer Verlag (Germany)
ISSN:	0951-208X
Last Modified:	26 Oct 2022 08:33
URI:	https://orca.cardiff.ac.uk/id/eprint/127772

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