UCL logo

UCL Discovery

UCL home » Library Services » Electronic resources » UCL Discovery

Development and validation of near infrared microscopy spectral libraries of ingredients in animal feed as a first step to adopting traceability and authenticity as guarantors of food safety

Fernandez-Ibanez, V; Fearn, T; Soldado, A; de la Roza-Delgado, B; (2010) Development and validation of near infrared microscopy spectral libraries of ingredients in animal feed as a first step to adopting traceability and authenticity as guarantors of food safety. FOOD CHEM , 121 (3) 871 - 877. 10.1016/j.foodchem.2009.10.072.

Full text not available from this repository.

Abstract

Traceability of animal products has become a priority for governments of the developed countries as a guarantee of food safety. Near infrared microscopy (NIRM) has been proposed as an alternative technology to detect and quantify banned ingredients in feedstuffs. The great advantage of this technique is its objectivity, whilst retaining the sensitivity of classic microscopy. The aim of this work was to build an NIRM reference spectral library on animal feed, consisting of samples of animal feed ingredients and possible contaminants, and to assess its ability to discriminate between ingredients using an internal cross-validation. A total of 48,899 spectra were measured on 229 samples representing 30 different ingredients. The method chosen for classification was K-nearest-neighbours (KNN) using first derivative spectra. Although the results showed an overall classification error of 35.88%, there was good discrimination between ingredients of animal and vegetable origin. There was some confusion between similar vegetable ingredients but this is unimportant. (C) 2010 Elsevier Ltd. All rights reserved.

Type:Article
Title:Development and validation of near infrared microscopy spectral libraries of ingredients in animal feed as a first step to adopting traceability and authenticity as guarantors of food safety
DOI:10.1016/j.foodchem.2009.10.072
Keywords:Near infrared (NIR) microscopy, Spectral libraries, Discriminant analysis, KNN, Safety, Ingredients, Animal feeds, BANNED MEAT, BONE MEAL, FRACTION
UCL classification:UCL > School of BEAMS > Faculty of Maths and Physical Sciences > Statistical Science

Archive Staff Only: edit this record