Discriminating organic and conventional foods by analysis of their microbial ecology: An application on fruits

Bigot Céline, Meile Jean-Christophe, Kapitan Gnimdu André, Montet Didier. 2015. Discriminating organic and conventional foods by analysis of their microbial ecology: An application on fruits. Food Control, 48 : 123-129.

Quartile : Q1, Sujet : FOOD SCIENCE & TECHNOLOGY

Résumé : Traceability of foods is mainly done at the administrative level, and the use of analytical tools is rare. Previous studies have demonstrated that microbial ecology analyses at the molecular level (such as PCR-DGGE) could be used to provide food with a unique biological signature that could be linked to the geographical origin of food. The present study aimed at testing this approach to differentiate farming types by analyzing organic and conventional food products. To this end, the microbial ecology of organic and conventional nectarines was analyzed and statistically compared. Our results show that yeast and bacterial communities were specific of the farming type allowing organic fruits to be discriminated from conventional ones. Several microbial species were identified as potential, biological markers which detection could be used to certify the origin as well as the mode of production of foodstuff. We proposed this analytical tool as a first step to control and authentify organic foods.

Mots-clés Agrovoc : produit alimentaire, aliment biologique, organisme indicateur, écologie microbienne, flore microbienne, traçabilité alimentaire, analyse qualitative, PCR, biologie moléculaire, électrophorèse sur gel, levure, étude de cas, fruits, qualité

Mots-clés géographiques Agrovoc : France

Classification Agris : Q02 - Traitement et conservation des produits alimentaires
U30 - Méthodes de recherche
Q03 - Contamination et toxicologie alimentaires
E70 - Commerce, commercialisation et distribution

Champ stratégique Cirad : Axe 3 (2014-2018) - Alimentation durable

Auteurs et affiliations

• Bigot Céline, CIRAD-PERSYST-UMR Qualisud (FRA)
• Meile Jean-Christophe, CIRAD-PERSYST-UMR Qualisud (FRA) ORCID: 0000-0002-6747-2104
• Kapitan Gnimdu André, CIRAD-PERSYST-UMR Qualisud (FRA)
• Montet Didier, CIRAD-PERSYST-UMR Qualisud (FRA)

Source : Cirad - Agritrop (https://agritrop.cirad.fr/575099/)

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