Raman Spectrometry for the food industry

INRAE highlights the contribution of the SIR platform (UAR-2025-ScanMAT) hosted by IPR

This study (FEAMP Omega-Truite project, 2018-2021) involved the calibration of Raman micro-spectrometry to assess the fatty acid composition of adipose deposits in rainbow trout. The method was found to be reliable for omega-3 fatty acids (EPA and DHA).

Fish is the main source of long-chain polyunsaturated fatty acids (omega 3) in the human diet. Fish lipids are rich in substances that have beneficial effects on human health.

In addition to nutritional approaches, genetic selection can be used to obtain farmed fish with higher levels of EPA and DHA.

Raman micro-spectrometry, which is a non-destructive, low-cost method that has demonstrated its potential for the identification of biological molecules, has been tested as an alternative to gas chromatography, which is expensive to use and requires longer analysis times.

The equipment of the SIR-ScanMAT platform and the associated competences (INRAE, SYSAAF, CNRS, UR1 collaboration) allowed to demonstrate that Raman spectrometry can be used to predict the PUFA composition of trout adipocytes and that this technique can allow large scale and high throughput phenotyping in rainbow trout.

See also:

INRAE highlight

CNRS highlight




Prado, E.; Eklouh-Molinier, C.; Enez, F.; Causeur, D.; Blay, C.; Dupont-Nivet, M.; Labbe, L.; Petit, V.; Moreac, A.; Taupier, G.; Haffray, P.; Bugeon, J.; Corraze, G.; Nazabal, V., 2022. Prediction of fatty acids composition in the rainbow trout Oncorhynchus mykiss by using Raman micro-spectroscopy. Analytica Chimica Acta, 1191: 9.