Next Article in Journal
Selective Reduction of Cr(VI) in Chromium, Copper and Arsenic (CCA) Mixed Waste Streams Using UV/TiO2 Photocatalysis
Next Article in Special Issue
Image Monitoring of Pharmaceutical Blending Processes and the Determination of an End Point by Using a Portable Near-Infrared Imaging Device Based on a Polychromator-Type Near-Infrared Spectrometer with a High-speed and High-Resolution Photo Diode Array Detector
Previous Article in Journal
Synthesis of Novel Triazoles, Tetrazine, Thiadiazoles and Their Biological Activities
Previous Article in Special Issue
The Role of Visible and Infrared Spectroscopy Combined with Chemometrics to Measure Phenolic Compounds in Grape and Wine Samples
Article Menu

Export Article

Open AccessArticle
Molecules 2015, 20(2), 2611-2621; doi:10.3390/molecules20022611

A Study on the Application of Near Infrared Hyperspectral Chemical Imaging for Monitoring Moisture Content and Water Activity in Low Moisture Systems

School of Biosystems Engineering, University College Dublin, Dublin 4, Ireland
*
Author to whom correspondence should be addressed.
Academic Editor: Christian Huck
Received: 8 December 2014 / Revised: 20 January 2015 / Accepted: 22 January 2015 / Published: 3 February 2015
(This article belongs to the Special Issue Advances of Vibrational Spectroscopic Technologies in Life Sciences)
View Full-Text   |   Download PDF [1057 KB, uploaded 3 February 2015]   |  

Abstract

Moisture content and water activity are key parameters in predicting the stability of low moisture content products. However, conventional methods for moisture content and water activity determination (e.g., loss on drying method, ‎Karl Fischer titration, dew point method) are time consuming, demand specialized equipment and are not amenable to online processing. For this reason they are typically applied at-line on a limited number of samples. Near infrared hyperspectral chemical imaging is an emerging technique for spatially characterising the spectral properties of samples. Due to the fast acquisition of chemical images, many samples can be evaluated simultaneously, thus providing the potential for online evaluation of samples during processing. In this study, the potential of NIR chemical imaging for predicting the moisture content and water activity of a selection of low moisture content food systems is evaluated. View Full-Text
Keywords: hyperspectral; near infrared; moisture content; water activity; food hyperspectral; near infrared; moisture content; water activity; food
Figures

Figure 1

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. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Achata, E.; Esquerre, C.; O'Donnell, C.; Gowen, A. A Study on the Application of Near Infrared Hyperspectral Chemical Imaging for Monitoring Moisture Content and Water Activity in Low Moisture Systems. Molecules 2015, 20, 2611-2621.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]

Molecules EISSN 1420-3049 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top