Classification of some heat-treated liver pastes according to container type, using heavy metals content and manufacturer's data, by principal components analysis and potential curves.
作者： G Brito , JM Andrade , J Havel , C Díaz , FJ García
DOI: 10.1016/J.MEATSCI.2006.03.024
关键词:
摘要: A total of 115 pork liver pastes were randomly collected in local markets from different brands, countries and containers. The concentrations nine heavy metals (Cu, Ni, Cd, Fe, Mn, Pb, Cr, Co Zn), determined by atomic absorption spectrometry, some qualitative variables described on the labelling constituted data set. Chemometrics analysis was performed combining principal components (PCA), factor (FA) typical classification techniques, such as linear discriminant (LDA) potential curves (PoCu) to classify pastes. Origin sample, manufacturer effect manufacturing process taken into account verify traceability, which is an important issue food safety policies.
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