Entity

Time filter

Source Type

Apeldoorn, Netherlands

Kapper C.,CCL Nutricontrol | Kapper C.,Vion Food Group | Klont R.E.,Vion Food Group | Verdonk J.M.A.J.,CCL Nutricontrol | And 3 more authors.
Meat Science | Year: 2012

Longissimus dorsi samples (685) collected at four processing plants were used to develop prediction equations for meat quality with near infrared spectroscopy. Equations with R 2>0.70 and residual prediction deviation (RPD)≥2.0 were considered as applicable for screening. One production plant showed R 2 0.76 and RPD 2.05, other plants showed R 2<0.70 and RPD<2.0 for drip loss %. RPD values were ≤2.05 for drip loss%, for colour L *≤1.82 and pH ultimate (pHu)≤1.57. Samples were grouped for drip loss%; superior (<2.0%), moderate (2-4%), inferior (>4.0%). 64% from the superior group and 56% from the inferior group were predicted correctly. One equation could be used for screening drip loss %. Best prediction equation for L * did not meet the requirements (R 2 0.70 and RPD 1.82). pHu equation could not be used. Results suggest that prediction equations can be used for screening drip loss %. © 2012 Elsevier Ltd. Source


Kapper C.,CCL Nutricontrol | Kapper C.,Vion Food Group | Klont R.E.,Vion Food Group | Verdonk J.M.A.J.,CCL Nutricontrol | And 2 more authors.
Meat Science | Year: 2012

The objective was to study prediction of pork quality by near infrared spectroscopy (NIRS) technology in the laboratory. A total of 131 commercial pork loin samples were measured with NIRS. Predictive equations were developed for drip loss %, colour L *, a *, b * and pH ultimate (pHu). Equations with R 2>0.70 and residual prediction deviation (RPD)≥1.9 were considered as applicable to predict pork quality. For drip loss% the prediction equation was developed (R 2 0.73, RPD 1.9) and 76% of those grouped superior and inferior samples were predicted within the groups. For colour L *, test-set samples were predicted with R 2 0.75, RPD 2.0, colour a * R 2 0.51, RPD 1.4, colour b * R 2 0.55, RPD 1.5 and pHu R 2 0.36, RPD 1.3. It is concluded that NIRS prediction equations could be developed to predict drip loss% and L *, of pork samples. NIRS equations for colour a *, b * and pHu were not applicable for the prediction of pork quality on commercially slaughtered pigs. © 2012 Elsevier Ltd. Source


Van Bussel W.,CCL Nutricontrol | Kerkhof F.,CCL Nutricontrol | Van Kessel T.,CCL Nutricontrol | Lamers H.,CCL Nutricontrol | And 5 more authors.
Atomic Spectroscopy | Year: 2010

Inductively coupled plasma optical emission spectrometry (ICP-OES) offers excellent possibilities for the quantitative high precision analysis of feed and food. In the present study, an analytical method was developed for the simultaneous determination of titanium as titanium dioxide when only a limited sample size is available. Sample preparation was performed by wet acid digestion. In-house standard nutrient reference materials (RMs) were prepared to verify the accuracy and precision of the quantitative method. Improved analytical results in terms of precision and accuracy were obtained using real-time simultaneous internal standardization. The final result shows a quantitative method for the selected element with a precision of typically 1% or better and RSDs of 0.04-0.10%. Detection limits were in the range of 0.003-0.008 mg/kg. Wide working ranges (ppb to ppm range) and low detection limits (ppb) were obtained for the ionic lines investigated (Ti 334.940 nm, Ti 336.121 nm, Ti 337.279 nm, Ti 334.903, and Ti 368.519 nm). The analytical procedure developed provides a quick, sensitive, precise, and economic method for the simultaneous determination of titanium dioxide, even when only a limited sample size is available. Source


Bremer M.G.E.G.,Institute of Food Safety | Margry R.J.C.F.,CCL Nutricontrol | Vaessen J.C.H.,CCL Nutricontrol | Van Doremalen A.M.H.,CCL Nutricontrol | And 4 more authors.
Journal of AOAC International | Year: 2013

Due to a growing aquaculture industry, demand for high-quality proteins for aquatic feeds is increasing. Non-ruminant processed animal proteins (PAPs) have shown great potential for this purpose. Safe reintroduction of non-ruminant PAPs in aqua feed requires methods that can discriminate ruminant and non-ruminant PAPs at contamination levels at or below 2%. Because the official European Union method lacks species specificity, the performance of MELISA-TEK™ Ruminant, a commercial immunoassay, combined with the MELISA-TEK High Sensitivity Sample Extraction kit was evaluated. Various non-ruminant PAPs spiked with ruminant PAPs (processed at 133, 137, 141, and 145°C) were analyzed. Results showed an overall specificity of 99%, indicating no cross-reaction with non-ruminant PAPs. The sensitivity of the assay strongly depended on both processing temperature and proportion of muscle fibers of the ruminant PAPs. Overall sensitivity of samples with 1 and 2% ruminant PAPs was 92 and 100%, respectively. For ruminant PAPs processed at 133 and 137°C, the sensitivity was 100% for both 1 and 2% ruminant spikes. Overall accuracies were 96 and 99% for 1 and 2% ruminant spikes, respectively. In conclusion, the MELISA-TEK Ruminant assay showed satisfactory results, which makes it a suitable candidate method to enable safe reintroduction of non-ruminant PAPs in aqua feed. Source

Discover hidden collaborations