Document Detail


Multicomponent determination of flavour enhancers in food preparations by partial least squares and principal component regression modelling of spectrophotometric data.
MedLine Citation:
PMID:  8372976     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Three multivariate calibration methods, partial least squares (PLS-1 and PLS-2) and principal component regression (PCR), were applied to the simultaneous determination of three flavour enhancers (inosine 5'-monophosphate, guanosine 5'-monophosphate and monosodium glutamate), in mixtures by ultraviolet/visible absorption spectrophotometry. The absorption and first- and second-derivative absorption spectra of the ternary mixtures were used to perform the optimization of the calibration matrices by the PLS and PCR methods. The results obtained by the application of the different chemometric approaches are discussed and compared. No significant advantages were found for the prior differentiation step. The proposed method was applied satisfactorily to the determination of inosine 5'-monophosphate and guanosine 5'-monophosphate in several food preparations, in the presence of monosodium glutamate.
Authors:
I Durán-Merás; A Muńoz de la Peña; A Espinosa-Mansilla; F Salinas
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The Analyst     Volume:  118     ISSN:  0003-2654     ISO Abbreviation:  Analyst     Publication Date:  1993 Jul 
Date Detail:
Created Date:  1993-10-08     Completed Date:  1993-10-08     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0372652     Medline TA:  Analyst     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  807-13     Citation Subset:  IM    
Affiliation:
Department of Analytical Chemistry, University of Extremadura, Badajoz, Spain.
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MeSH Terms
Descriptor/Qualifier:
Flavoring Agents / analysis*
Food Analysis*
Least-Squares Analysis
Models, Theoretical
Regression Analysis
Spectrophotometry
Chemical
Reg. No./Substance:
0/Flavoring Agents

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


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