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NIR and VIS-NIR spectroscopy to predict PSE-LIKE zones of ham

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Antoine Vautier et al., 63e International Congress of Meat Science and Technology, Cork, Irlande, 13-18 août 2017

The aim of the study was to evaluate NitFom´s ability to predict PSE-like zones, a muscle structure defect in ham, which at present can only be detected by visual inspection after deboning. NitFom is an on-line fast device based on NIR spectroscopy dedicated to the meat industry. In comparison with the Vis-NIR Labspec4 spectrometer, the overall misclassification level of the NitFom is higher (13.0% vs 26.1%). However, misclassification of deboned ham deeply affected by PSE-like zones is lower for both devices (25% of false positives for NitFom). This level of accuracy could be satisfactory and useful for the meat industry, considering that the use of NitFom allow sorting of bone-in hams. The NitFom accuracy for PSE-like zone classification might be improved by expanding the range of spectrum analyzed by adding the visible wavelengths.

PDF icon Antoine Vautier et al., 63e ICOMST, Cork, Irlande, 13-18 août 2017
2017

Prediction of drip loss and ultimate pH in pork Semimembranosus by the Nitfom

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Antoine Vautier et al., 63e International Congress of Meat Science and Technology, Cork, Irlande, 13-18 août 2017

Most of the NIR spectrometers available are not suited for on line measurements in slaughterhouses. The aim of the study was to test the ability of a device dedicated to industrial measurement (NitFom, Frontmatec) for prediction of drip loss and ultimate pH. A calibration model fitting was satisfactory (drip loss, R²=0.59 and pHu, R²=0.70) and the prediction accuracy levels for drip loss were similar to calibration results found with the Labspec4, a laboratory Vis-NIR spectrometer (NitFom, rmsecv=1.5% and Labspec4, 1.7%). This study revealed that prediction of drip loss by NIRS could be a good alternative to measurement of ultimate pH for drip loss sorting.

PDF icon Antoine Vautier et al., 63e ICOMST, Cork, Irlande, 13-18 août 2017
2017

Prediction of drip loss and ultimate pH in pork Semimembranosus by the NitFom™

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Antoine Vautier et al., 63e International Congress of Meat Science and Technology, Cork, Irlande, 13-18 août 2017, poster

A majority of studies dealing with Near InfraRed Spectroscopy (NIRS) prediction of meat quality are focusing on its chemical composition, but the ability of NIRS to predict technological quality of meat has been the subject of many recent publications. This technology gives a quick access to spectral pattern that can also be linked to the water holding capacity of meat. However, very few NIRS devices are suitable for industrial implementation. In this study, a feasibility test was carried out to evaluate the possibility of predicting drip loss and ultimate pH in pork Semimembranosus using the NitFom™, a NIRS-based handheld invasive probe suitable for rapid on line measurements in pork carcasses immediately after slaughter.

PDF icon Antoine Vautier et al., 63e ICOMST, Cork, Irlande, 13-18 août 2017, poster
2017

NIR and Vis-NIR spectroscopy to predict PSE-like zones of ham

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Antoine Vautier et al., 63e International Congress of Meat Science and Technology, Cork, Irlande, 13-18 août 2017, poster

PSE-like zones are still a major concern for the meat processing industry. This structure defect of the ham is known to increase slicing losses of the phosphate-free “Jambon Cuit Supérieur” processing. PSE-like zones are difficult to detect before deboning due to their localization on the inside surface of the ham. Near Infra-Red Spectroscopy (NIRS) devices such as Labspec4® can be considered as alternative techniques to human subjective grading, but measurements must be conducted on deboned hams. The NitFom™ (Frontmatec) is a NIR based measuring device dedicated to on-line measurements at high speed on hot or cold carcasses by invasive probing. The objective of the study was to evaluate the accuracy of PSE-like zone classification using NitFom™ on bone-in hams and to compare its prediction quality with the previously tested Labspec4® on deboned hams.

PDF icon Antoine Vautier et al., 63e ICOMST, Cork, Irlande, 13-18 août 2017, poster
2017