Fresh intact lamb muscle was measured using a Raman hand held device to determine the ability of Raman spectroscopy to predict intramuscular fat (IMF) and fatty acid (FA) composition. Raman measurements were conducted on 80 samples of longissimus thoracis lumborum (LL) from different carcases. Measured FA values were regressed on the Raman spectra using partial least squares (PLS) regression. Predicting polyunsaturated fattyacids (PUFA) yielded a squared correlation between predicted and measured values (R2cv)equal to 0.56 and a root mean square error of cross validation (RMSECV) of 16.2mg/100g meat. Prediction of PUFA: saturated fatty acids (SFA) gave an R2cv equalled to 0.15 and aRMSECV of 0.04. This is the first Ramanspectroscopy study to measure FA composition of IMF in intact muscle and there is evidence to suggest that Raman spectroscopy has the potential to predict PUFA and PUFA:SFA ratio. Further work is required to validate the models generated in this study and establish the potential benefit of Raman spectroscopy.
|Title of host publication||Proceedings of the 60th International Congress of Meat Science and Technology|
|Place of Publication||Netherlands|
|Number of pages||4|
|Publication status||Published - 2014|
|Event||60th International Congress of Meat Science and Technology: ICoMST 2014 - Conrad Hotel, Punta Del Este, Uruguay|
Duration: 17 Aug 2014 → 22 Aug 2014
https://www.cabdirect.org/cabdirect/FullTextPDF/2015/20153118849.pdf (Conference proceedings)
|Name||Latin-American Archives of Animal Production|
|Publisher||Latin American Association of Animal Production|
|Conference||60th International Congress of Meat Science and Technology|
|Abbreviated title||Nature & Innovation with Due Respect|
|City||Punta Del Este|
|Period||17/08/14 → 22/08/14|
Fowler, S., Schmidt, H., Clayton, E., van de Ven, R., Bailes, K., Wynn, P., & Hopkins, D. (2014). Predicting fatty acid composition of lamb loin using Raman spectroscopy. In Proceedings of the 60th International Congress of Meat Science and Technology (pp. 1-4). (Latin-American Archives of Animal Production; Vol. 22, No. Supplement 1). Elsevier BV.