Hannover 2016 – scientific programme

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MO: Fachverband Molekülphysik

MO 14: Posters 3: Novelties in Molecular Physics: Theory of Molecular Dynamics, Collisions and Energy Transfer, and Experimental Techniques

MO 14.20: Poster

Wednesday, March 2, 2016, 16:30–19:00, Empore Lichthof

Raman Spectroscopy for the Characterization of Milk Properties — •Maximilian Schallwig¹, Patrice Donfack¹, Faezeh Mohaghegh¹, Ralf Zink², Nadine Gebers², and Arnulf Materny¹ — ¹Physics and Earth Sciences, Jacobs University Bremen, Campus Ring 1, 28759 Bremen — ²DMK Deutsches Milchkontor GmbH, Flughafenallee 17, 28199 Bremen

Raman spectroscopy yields molecular fingerprints in form of unique vibrational spectra. Therefore, it is a useful technique also for analytical purposes. Raman spectra obtained from systems like natural food of plant or animal origin are rather complex due to the superposition of spectra from different components. Still the spectra can be used to extract information about essential nutrients, but also contaminations, adulterations and deterioration. In the present study, we have used Raman spectroscopy in combination with statistical evaluation techniques like principal component analysis and linear regression in order to analyse milk and milk products. We show that different important parameters can be determined like fat contents, saturation degree etc. Raman spectroscopy has proven to be a valuable tool for the fast and non-invasive characterization of these samples.