Document Detail


Visible micro-Raman spectroscopy for determining glucose content in beverage industry.
MedLine Citation:
PMID:  23140728     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
The potential of Raman spectroscopy with excitation in the visible as a tool for quantitative determination of single components in food industry products was investigated by focusing the attention on glucose content in commercial sport drinks. At this aim, micro-Raman spectra in the 600-1600cm(-1) wavenumber shift region of four sport drinks were recorded, showing well defined and separated vibrational fingerprints of the various contained sugars (glucose, fructose and sucrose). By profiting of the spectral separation of some peculiar peaks, glucose content was quantified by using a multivariate statistical analysis based on the interval Partial Least Square (iPLS) approach. The iPLS model needed for data analysis procedure was built by using glucose aqueous solutions at known sugar concentrations as calibration data. This model was then applied to sport drink spectra and gave predicted glucose concentrations in good agreement with the values obtained by using a biochemical assay. These results represent a significant step towards the development of a fast and simple method for the on-line glucose quantification in products of food and beverage industry.
Authors:
I Delfino; C Camerlingo; M Portaccio; B Della Ventura; L Mita; D G Mita; M Lepore
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Publication Detail:
Type:  Journal Article     Date:  2011-01-08
Journal Detail:
Title:  Food chemistry     Volume:  127     ISSN:  0308-8146     ISO Abbreviation:  Food Chem     Publication Date:  2011 Jul 
Date Detail:
Created Date:  2012-11-12     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7702639     Medline TA:  Food Chem     Country:  England    
Other Details:
Languages:  eng     Pagination:  735-42     Citation Subset:  IM    
Copyright Information:
Copyright © 2011 Elsevier Ltd. All rights reserved.
Affiliation:
Biophysics and Nanoscience Centre, CNISM, Università della Tuscia, Viterbo, Italy.
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