Memorias de investigación
Communications at congresses:
VIS and NIR Spectroscopy for the Detection of Allergen (Peanuts) in Powder Foods

Research Areas
  • Agriculture,
  • Engineering

Consumption of peanuts has beneficial health properties but it can also cause allergy; one of the most important allergens in the food industry is peanut. The peanut is also widely used in the food industry as an additive, which could be a risk for allergic patients in whom small doses are capable of inducing severe clinical symptoms. European norms make it compulsory to indicate on the label of food products, ingredients that can cause allergies and intolerances,; they also establish a list of food allergens (Garcia, 2005). Real-time polymerase chain reaction (RT PCR) is a method for the detection of allergens by means of DNA-based methods. The target molecules, DNA sequences, are amplified by the RT-PCR. For the peanut allergen, several RT-PCR assays have been developed (Hird et al., 2003; Scaravelli et al., 2008). López-Calleja et al. (2013) have recently reported the development of a realtime PCR assay method for detection of trace amounts of peanut in processed foods. The main drawback of RT-PCR is the requirement for skilled labour while being time-consuming and expensive as well. The objective of this work was to study non-destructive methods based on spectroscopy and hyperspectral imaging that could be used by the food industry for detecting peanuts in powdered foodstuffs in support of the usual genetic approach, PCRg. The present research compared the potential of attenuated visible- NIR spectra (400-1000 nm) and near infrared spectroscopy (896-1686 nm) for the non-destructive detection of peanuts. This method could be a screening technique prior to application of the high cost RT-PCR method.
NIR 2013 ? 16th International Conference on Near Infrared Spectroscopy
Montpellier Francia
Start Date
End Date
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NIR 2013 - 16th International Conference on Near Infrared Spectroscopy 2 - 7 June 2013, la Grande-Motte, France

Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: LPF-TAGRALIA: Técnicas Avanzadas en Agroalimentación
  • Departamento: Ingeniería Rural