TITLE

Novel μ-membrane module for online determination of the free fatty acid content in the dispersed phase of oil-in-water emulsions

AUTHOR(S)
Kaufhold, Dennis; Fagaschewski, Janosch; Sellin, Daniel; Strompen, Simon; Liese, Andreas; Hilterhaus, Lutz
PUB. DATE
May 2014
SOURCE
Analytical & Bioanalytical Chemistry;May2014, Vol. 406 Issue 13, p3157
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Monitoring the dispersed phase of an oil-in-water (O-W) emulsion by means of Fourier transform infrared (FTIR) spectroscopy is a challenging task, restricted to the continuous phase that is in contact with the FTIR probe. Nonetheless, real-time measurement and kinetic analysis by FTIR, including analysis of the dispersed, often non-polar phase containing substrates and/or products, is desirable. Enzymatic hydrolysis of sunflower oil was performed in an O-W emulsion. After separation of the oil phase by use of a newly developed μ-membrane module, infrared spectra were collected using an attenuated total reflectance (ATR) cell. Different chemometric models were calibrated using the partial least squares (PLS) algorithm. Online application of a chemometric model based on the FTIR spectra enabled real-time monitoring of free fatty acid concentrations in the oil phase. [Figure not available: see fulltext.]
ACCESSION #
95660495

 

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