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Relationship between the kinetics of [bêta]-carotene degradation and formation of norisoprenoids in the storage of dried sweet potato chips

Bechoff Aurélie, Dhuique-Mayer Claudie, Dornier Manuel, Tomlins Keith I., Boulanger Renaud, Dufour Dominique, Westby Andrew. 2010. Relationship between the kinetics of [bêta]-carotene degradation and formation of norisoprenoids in the storage of dried sweet potato chips. Food Chemistry, 121 (2) : pp. 348-357.

Journal article ; Article de revue à facteur d'impact
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Quartile : Q1, Sujet : FOOD SCIENCE & TECHNOLOGY / Quartile : Q1, Sujet : CHEMISTRY, APPLIED / Quartile : Q1, Sujet : NUTRITION & DIETETICS

Abstract : The effects of storage temperature (10; 20; 30; 40 _C), water activity (0.13; 0.30; 0.51; 0.76) and oxygen level (0%; 2.5%; 10%; 21%) on the degradation of carotenoids and formation of volatile compounds during storage of dried sweet potato chips were evaluated. A kinetic model was developed for degradation of trans-b-carotene and it showed that breakdown followed first order kinetics with an activation energy of 64.2 kJ mol_1. The difference between experimental data under laboratory or field conditions fitted and data predicted by the model was less than 10% for trans-b-carotene, or for total carotenoids. The formation of the volatile compounds, b-ionone; 5,6-epoxy-b-ionone; dihydroactinidiolide; b-cyclocitral, was measured by SPME-GC-MS and was clearly related to the degradation of trans-b-carotene. It is also suggested that carotenoid degradation in dried sweet potato was by autoxidation because of the trend in bcarotene degradation rate in relation to water activity or oxygen level. (Résumé d'auteur)

Mots-clés Agrovoc : Patate douce, Ipomoea batatas, Caroténoïde, Composé volatil, Stockage, Biodégradation, Réaction chimique, Oxygène, Température, Activité de l'eau, Isoprénoïde

Mots-clés géographiques Agrovoc : France, Ouganda

Mots-clés complémentaires : Bêta-carotène, Cinétique, Chips

Classification Agris : Q02 - Food processing and preservation
Q04 - Food composition

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

Auteurs et affiliations

  • Bechoff Aurélie, CIRAD-PERSYST-UMR Qualisud (FRA)
  • Dhuique-Mayer Claudie, CIRAD-PERSYST-UMR Qualisud (FRA)
  • Dornier Manuel, CIRAD-PERSYST-UMR Qualisud (FRA)
  • Tomlins Keith I., NRI (GBR)
  • Boulanger Renaud, CIRAD-PERSYST-UMR Qualisud (FRA) ORCID: 0000-0001-9396-5634
  • Dufour Dominique, CIRAD-PERSYST-UMR Qualisud (COL)
  • Westby Andrew, NRI (GBR)

Autres liens de la publication

Source : Cirad - Agritrop (https://agritrop.cirad.fr/553538/)

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