Controlled release of preservatives using dealuminated zeolite Y

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Controlled release of preservatives using dealuminated zeolite Y

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Publication Article, peer reviewed scientific
Title Controlled release of preservatives using dealuminated zeolite Y
Author(s) Eriksson, Håkan
Date 2007-08-23
English abstract
This study demonstrates that dealuminated zeolite Y can act as a depot after adsorption of phenol derived preservatives. Upon suspension of zeolite loaded with the preservative m-cresol, equilibrium was quickly reached between free and adsorbed m-cresol. The equilibrium concentration of m-cresol was below 1 mM, however, it was enough to kill bacteria such as Escherichia coli and Staphylococcus aureus under metabolically active conditions. Killing of bacteria were not obtained under non-proliferating conditions and m-cresol was only released from the zeolite upon bacterial activity. Together, these results demonstrate an interesting potential use of dealuminated zeolite Y containing adsorbed preservatives for preventing microbial growth in numerous applications in industry and clinical setting.
DOI http://dx.doi.org/10.1016/j.jbbm.2007.05.010 (link to publisher's fulltext.)
Host/Issue Journal of Biochemical and Biophysical Methods
Language eng (iso)
Subject(s) anti microbial activity
benzalkonium chloride
dealuminated zeolite
m-cresol
Technology
Research Subject Categories::NATURAL SCIENCES
Handle http://hdl.handle.net/2043/4361 (link to this page)

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