Document Detail

Monitoring lipase-catalyzed butterfat interesterification with rapeseed oil by Fourier transform near-infrared spectroscopy.
MedLine Citation:
PMID:  16964473     Owner:  NLM     Status:  MEDLINE    
This work demonstrates the application of FT-NIR spectroscopy in order to monitor the enzymatic interesterification process for butterfat modification. The reactions were catalyzed by Lipozyme TL IM at 70 degrees C for the blend of butterfat/rapeseed oil (70/30, w/w) in a packed-bed reactor. The blend and interesterified fat samples were measured in liquid form at 70 degrees C by transmission mode-based FT-NIR over the spectral region 12000-4000 cm-1. The calibration of FT-NIR for conversion degree (evaluated by the triglyceride profile, which was represented by the triglyceride peak ratio) and solid fat content (SFC) of the interesterified products was carried out using partial least squares (PLS) regression. Good correlations were observed between the NIR spectra and ln (peak ratio), and between the NIR spectra and the SFC at 5 degrees C over the spectral range 5269-4513 cm-1. Overall, transmission-mode FT-NIR spectroscopy performed at 70 degrees C yielded conditions close to those used during the interesterification process, implying that this method could be used to control the enzymatic interesterification process online.
Hong Zhang; Huiling Mu; Xuebing Xu
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2006-09-09
Journal Detail:
Title:  Analytical and bioanalytical chemistry     Volume:  386     ISSN:  1618-2642     ISO Abbreviation:  Anal Bioanal Chem     Publication Date:  2006 Nov 
Date Detail:
Created Date:  2006-11-20     Completed Date:  2007-02-15     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101134327     Medline TA:  Anal Bioanal Chem     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  1889-97     Citation Subset:  IM    
BioCentrum-DTU, Technical University of Denmark, Building 227, 2800, Lyngby, Denmark.
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MeSH Terms
Carboxylic Ester Hydrolases / metabolism*
Chromatography, High Pressure Liquid
Plant Oils / analysis*,  chemistry,  metabolism*
Spectroscopy, Fourier Transform Infrared / methods*
Reg. No./Substance:
0/Plant Oils; 8002-13-9/rapeseed oil; 8029-34-3/Butter; EC 3.1.1.-/Carboxylic Ester Hydrolases

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