Post-rigor assessment of porcine meat quality applying a portable raman system

Scheier, Rico; Scheeder, Martin; Schmidt, Heinar (2016). Post-rigor assessment of porcine meat quality applying a portable raman system In: 61th International Congress of Meat Science and Technology. Clermont-Ferrand / France. 23.-28th August 2015.

Text 2015_07_19.pdf - Accepted Version Restricted to registered users only Download (488kB) | Request a copy

This contribution presents new results forthe non-invasive quality assessment of porkusing a prototypehandheld Raman device. Earlier work has shown that pH45, pH24and drip loss can be predicted 0.5-2h after slaughter with this device. Likewise, it is of interest to evaluate thepotential of Raman spectra measured post rigor. Therefore, Raman spectra, pH values, color, drip loss and cooking loss of137 porcine longissimus thoracis muscleswere measured. The spectra correlated well with the pH24(R²cv=0.7 and 0.82, for puncture andsurface electrode, respectively)and L* (R²cv=0.67).Thecorrelationswith cooking loss3 and 7 days p.m. and with drip loss were less precise(R²cv=0.33, 0.41and 0.29, respectively). Thus, mobile Raman spectroscopy can measure important technological quality traits during deboning, but the predictive power is reduced compared to using pre-rigor spectra.

Item Type:	Conference or Workshop Item (Paper)
Division/Institute:	School of Agricultural, Forest and Food Sciences HAFL > Resource-efficient agricultural production systems School of Agricultural, Forest and Food Sciences HAFL > Agriculture
Name:	Scheier, Rico; Scheeder, Martin and Schmidt, Heinar
Subjects:	S Agriculture > SF Animal culture
Language:	English
Submitter:	Service Account
Date Deposited:	10 Mar 2020 10:11
Last Modified:	10 Mar 2020 10:11
Uncontrolled Keywords:	pH, color, drip loss, PLSR
ARBOR DOI:	10.24451/arbor.7382
URI:	https://arbor.bfh.ch/id/eprint/7382