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Direct Determination of Moisture in Powder Milk Using Near Infrared Spectroscopy

Moisture content in commercially available milk powder was investigated using near infrared (NIR) diffuse reflectance spectroscopy with an Indian low-cost dispersive NIR spectrophotometer. Different packets of milk powder of the same batch were procured from the market. Forty-five samples with moist...

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Detalles Bibliográficos
Autores principales: Nagarajan, R., Singh, Parul, Mehrotra, Ranjana
Formato: Texto
Lenguaje:English
Publicado: 2006
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1903454/
https://www.ncbi.nlm.nih.gov/pubmed/17671620
http://dx.doi.org/10.1155/JAMMC/2006/51342
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author Nagarajan, R.
Singh, Parul
Mehrotra, Ranjana
author_facet Nagarajan, R.
Singh, Parul
Mehrotra, Ranjana
author_sort Nagarajan, R.
collection PubMed
description Moisture content in commercially available milk powder was investigated using near infrared (NIR) diffuse reflectance spectroscopy with an Indian low-cost dispersive NIR spectrophotometer. Different packets of milk powder of the same batch were procured from the market. Forty-five samples with moisture range 4–10% were prepared in the laboratory. Spectra of the samples were collected in the wavelength region 800–2500 nm. Moisture values of all the samples were simultaneously determined by Karl Fischer (KF) titration. These KF values were used as reference for developing calibration model using partial least squares regression (PLSR) method. The calibration and validation statistics are [Formula: see text] , [Formula: see text] , and [Formula: see text] , [Formula: see text]. Five samples of unknown moisture contents were taken for NIR prediction using developed calibration model. The agreement between NIR predicted results and those of Karl Fischer values is appreciable. The result shows that the instrument can be successfully used for the determination of moisture content in milk powder.
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spelling pubmed-19034542007-08-01 Direct Determination of Moisture in Powder Milk Using Near Infrared Spectroscopy Nagarajan, R. Singh, Parul Mehrotra, Ranjana J Autom Methods Manag Chem Research Article Moisture content in commercially available milk powder was investigated using near infrared (NIR) diffuse reflectance spectroscopy with an Indian low-cost dispersive NIR spectrophotometer. Different packets of milk powder of the same batch were procured from the market. Forty-five samples with moisture range 4–10% were prepared in the laboratory. Spectra of the samples were collected in the wavelength region 800–2500 nm. Moisture values of all the samples were simultaneously determined by Karl Fischer (KF) titration. These KF values were used as reference for developing calibration model using partial least squares regression (PLSR) method. The calibration and validation statistics are [Formula: see text] , [Formula: see text] , and [Formula: see text] , [Formula: see text]. Five samples of unknown moisture contents were taken for NIR prediction using developed calibration model. The agreement between NIR predicted results and those of Karl Fischer values is appreciable. The result shows that the instrument can be successfully used for the determination of moisture content in milk powder. 2006 /pmc/articles/PMC1903454/ /pubmed/17671620 http://dx.doi.org/10.1155/JAMMC/2006/51342 Text en Copyright © 2006 R. Nagarajan et al. http://creativecommons.org/licenses/by/2.0 This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Nagarajan, R.
Singh, Parul
Mehrotra, Ranjana
Direct Determination of Moisture in Powder Milk Using Near Infrared Spectroscopy
title Direct Determination of Moisture in Powder Milk Using Near Infrared Spectroscopy
title_full Direct Determination of Moisture in Powder Milk Using Near Infrared Spectroscopy
title_fullStr Direct Determination of Moisture in Powder Milk Using Near Infrared Spectroscopy
title_full_unstemmed Direct Determination of Moisture in Powder Milk Using Near Infrared Spectroscopy
title_short Direct Determination of Moisture in Powder Milk Using Near Infrared Spectroscopy
title_sort direct determination of moisture in powder milk using near infrared spectroscopy
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1903454/
https://www.ncbi.nlm.nih.gov/pubmed/17671620
http://dx.doi.org/10.1155/JAMMC/2006/51342
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