The electronic nose: a new tool for the quality evaluation of salmon (Salmo salar)

The use of multi-gas sensor technology, like the electronic nose, appears to be a promising technique for measuring volatile compounds from food samples. We have applied this new technology for freshness evaluation of salmon samples. The samples were stored at 4°C and the olfactive print was followe...

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Bibliographic Details
Main Authors: Fleurence, J., Etienne, M., Luchon, M., Steinmetz, V., Pachot, A.
Other Authors: Génie instrumental qualité alimentaire (UR GIMO), Centre national du machinisme agricole, du génie rural, des eaux et forêts (CEMAGREF)
Format: Conference Object
Language:English
Published: HAL CCSD 1997
Subjects:
Online Access:https://hal.inrae.fr/hal-02577207
Description
Summary:The use of multi-gas sensor technology, like the electronic nose, appears to be a promising technique for measuring volatile compounds from food samples. We have applied this new technology for freshness evaluation of salmon samples. The samples were stored at 4°C and the olfactive print was followed for 4 weeks. The equipment used for this study was the "Fox 2000" purchased by the Alpha-Mos company.The data collected were processed by using of the neuronal network or DFA.The first results showed that the electronic nose technology allowed, without errors, to distinguish a sample belonging to the category "not acceptable" from others. It also allows, with an acceptable level error, the distinction of samples classified into "good" and "acceptable" categories. On the other hand, the use of neuronal network for the data treatment is an indication of the complexity associated to this new technology. This latest etablishement suggests that the electronic nose equipment is not still adapted for fish quality routine control. However, our results obtained from salmon are attractive and justify to continue the research action about the validation of electronic nose technique for the fish freshness evaluation. L'utilisation de la technologie des capteurs d'odeurs basés sur le gaz, comme les nez électroniques, s'avère être une technique pour mesurer les composés volatiles des échantillons de produits alimentaires. Cette nouvelle technologie a été appliquée pour l'évaluation de la fraîcheur du poisson sur des saumons (Salmo salar). Les échantillons ont été stockés à 4 degrés Celcius et leur réponse olfactive a été suivie durant 4 semaines. L'équipement utilisé pour cette étude était un "Fox 2000" acheté auprès de la société Alphamos. Les données recueillies avec ce capteur on été traitées avec diverses méthodes de discrimination (analyse factorielle discriminante, réseaux de neurones). Les premiers résultats montrent que la technologie du nez électronique permet, sans erreur, de distinguer un échantillon d'une qualité ...