Rapid discrimination of scented rice by solid-phase microextraction, mas spectrometry, and multivariate analysis used as a mass senor

Laguerre Mickaël, Mestres Christian, Davrieux Fabrice, Ringuet Johany, Boulanger Renaud. 2007. Rapid discrimination of scented rice by solid-phase microextraction, mas spectrometry, and multivariate analysis used as a mass senor. Journal of Agricultural and Food Chemistry, 55 (4) : 1077-1083.

Résumé : This study describes a new and suitable method for the rapid evaluation of rice (Oryza sativa, L.) aroma by analysis of the volatile fraction using solid-phase micro-extraction coupled with mass spectrometry (SPME/MS). The abundance list of unresolved mass fragments of the SPME extracted volatile fraction formed the "fingerprint" of a rice sample. Fingerprints of 61 rice samples were recorded in duplicate. Pollutants originating from the extraction system induce fingerprint background that could be lowered by careful cleaning of vials and caps and by exclusion of specific mass fragments. A good discrimination between scented and nonscented rice samples was obtained using the SIMCA procedure. Most of the discriminating mass fragments could be directly or indirectly assigned to potential aromatic molecules present in rice.

Mots-clés Agrovoc : composé de la flaveur, riz, Oryza sativa, extraction, spectrométrie de masse, identification, contrôle de qualité, technique analytique, flaveur

Classification Agris : Q04 - Composition des produits alimentaires
Q02 - Traitement et conservation des produits alimentaires

Champ stratégique Cirad : Axe 3 (2005-2013) - Alimentation accessible et de qualité

Auteurs et affiliations

• Laguerre Mickaël, CIRAD-AMIS-UMR IATE (FRA)
• Mestres Christian, CIRAD-FLHOR-UPR Qualité des aliments (FRA)
• Davrieux Fabrice, CIRAD-CP-UPR Qualité produits pérennes (FRA)
• Ringuet Johany
• Boulanger Renaud, CIRAD-CP-UPR Qualité produits pérennes (FRA) ORCID: 0000-0001-9396-5634

Source : Cirad - Agritrop (https://agritrop.cirad.fr/537209/)

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