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Near-infrared optical spectroscopy of sugar-based mixtures - a snapshot to identify issues of influence

: Boulley, L.; Schulte, Henning; Pierson, J.-F.

Fulltext urn:nbn:de:0011-n-3350026 (1.1 MByte PDF)
MD5 Fingerprint: 99dd40a9a29f3daa21e3a514fdc5d528
Created on: 14.4.2015

Beyerer, Jürgen (Ed.); Puente Leon, Fernando (Ed.); Längle, Thomas (Ed.):
OCM 2015, 2nd International Conference on Optical Characterization of Materials : March 18th - 19th, 2015, Karlsruhe, Germany
Karlsruhe: KIT Scientific Publishing, 2015
ISBN: 978-3-7315-0318-7
DOI: 10.5445/KSP/1000044906
International Conference on Optical Characterization of Materials (OCM) <2, 2015, Karlsruhe>
Conference Paper, Electronic Publication
Fraunhofer IOSB ()

Optical spectroscopy is one method used to identify products and ingredients in food industries. This article presents a review of the literature concerning carbohydrates spectra (especially sugar) and compares it to the results that can be obtained with standard hyper spectral imaging (laboratory equipment). The possibility to identify sugar in mixtures is also investigated. The near infrared region is the most accurate to qualitatively detect the presence of sugar. A differentiation between different types of sugar seems not to be possible with the equipment, because of too small differences and the overlap of absorption bands.