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Monitoring water uptake in whole barley (Hordeum vulgare L.) grain during steeping using near infrared reflectance spectroscopy

journal contribution
posted on 18.09.2018, 00:00 authored by Daniel CozzolinoDaniel Cozzolino, S Roumeliotis, J Eglinton
The aim of this study was to evaluate the use of near infrared reflectance (NIR) spectroscopy to monitor water uptake and steeping time in whole barley samples as a rapid and easy to use technique. Whole barley grain samples were steeped in water, and subsamples were analyzed for water uptake (gravimetric method) and using NIR spectroscopy. The spectra and the analytical data were used to develop partial least squares (PLS) calibrations to predict water uptake and steeping time. Cross validation models for water uptake and steeping time gave a coefficient of determination in cross validation (R2) and the standard error of prediction (SEP) of 0.90 (SEP = 5.36 g/100 g fw) and 0.92 (SEP = 3.93 h), respectively. This study showed that NIR spectroscopy combined with PLS regression showed promise as a rapid, non-destructive method to monitor and measure water uptake and steeping time in whole barley during soaking. © 2012 Elsevier Ltd. All rights reserved.

Funding

Category 2 - Other Public Sector Grants Category

History

Volume

114

Issue

4

Start Page

545

End Page

549

Number of Pages

5

ISSN

0260-8774

Publisher

Elsevier Ltd

Peer Reviewed

Yes

Open Access

No

External Author Affiliations

University of Adelaide

Era Eligible

Yes

Journal

Journal of Food Engineering