Document Detail


Monitoring lipase-catalyzed butterfat interesterification with rapeseed oil by Fourier transform near-infrared spectroscopy.
MedLine Citation:
PMID:  16964473     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
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.
Authors:
Hong Zhang; Huiling Mu; Xuebing Xu
Related Documents :
23909073 - The role of physical activity in cancer prevention, treatment, recovery, and survivorship.
2233203 - Body temperature rhythm and response to pyrogen in exercising and sedentary hamsters.
8378423 - Electromyographic activity of selected shoulder muscles in commonly used therapeutic ex...
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    
Affiliation:
BioCentrum-DTU, Technical University of Denmark, Building 227, 2800, Lyngby, Denmark. hz@biocentrum.dtu.dk
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Butter*
Calibration
Carboxylic Ester Hydrolases / metabolism*
Catalysis
Chromatography, High Pressure Liquid
Esterification
Plant Oils / analysis*,  chemistry,  metabolism*
Spectroscopy, Fourier Transform Infrared / methods*
Chemical
Reg. No./Substance:
0/Plant Oils; 8002-13-9/rapeseed oil; 8029-34-3/Butter; EC 3.1.1.-/Carboxylic Ester Hydrolases

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Cross-interval histograms for analysis of brain electrical activity.
Next Document:  Comparative study between a commercial and a homemade capillary electrophoresis instrument for the s...