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Heat resistances of Candida Apicola and Aspergillus Niger spores isolated from date fruit surface

Belbahi Amine, Bohuon Philippe, Leguérinel Ivan, Méot Jean-Michel, Loiseau Gérard, Madani Khodir. 2017. Heat resistances of Candida Apicola and Aspergillus Niger spores isolated from date fruit surface. Journal of Food Process Engineering, 40 (1):e12272, 8 p.

Journal article ; Article de revue à facteur d'impact
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Belbahi_et_al-2017-Journal_of_Food_Process_Engineering.pdf

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577416.pdf

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Quartile : Q2, Sujet : FOOD SCIENCE & TECHNOLOGY / Quartile : Q2, Sujet : ENGINEERING, CHEMICAL

Abstract : Candida apicola and Aspergillus niger strains were isolated and identified from Deglet-Nour dates, and their loads were determined on the fruit surface. The thermal inactivation of their spores was evaluated between 42 and 70C. The estimated D values for C. apicola and A. niger were D50 = 2.3 ± 0.4 min and D50 = 22.1 ± 2.1 min, respectively. The zT values obtained were 9.4 ± 2.6 and 9.6 ± 1.0C for C. apicola and A. niger, respectively. The experimental survival spores obtained on the date surface during non-isothermal treatment were compared with the simulated data based on the Bigelow method and on pasteurization value calculations. C. apicola and A. niger spores can be inactivated by relatively low temperatures. Validation shows that this model and its parameters can be used to optimize pasteurization of these fungal spores on the surface of fruits using the temperature–time profile data. These thermal treatments can pasteurized date surface while minimizing the color date degradation.

Mots-clés Agrovoc : Datte, fruits, Candida, Aspergillus niger, Traitement thermique, Tolérance à la chaleur, Préservation des aliments, Contamination biologique, Phoenix dactylifera

Mots-clés géographiques Agrovoc : France, Algérie

Mots-clés complémentaires : Candida apicola

Classification Agris : J11 - Handling, transport, storage and protection of plant products
H20 - Plant diseases
Q02 - Food processing and preservation

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

Auteurs et affiliations

  • Belbahi Amine, CIRAD-PERSYST-UMR Qualisud (FRA) - auteur correspondant
  • Bohuon Philippe, Montpellier SupAgro (FRA)
  • Leguérinel Ivan, Université de Brest (FRA)
  • Méot Jean-Michel, CIRAD-PERSYST-UMR Qualisud (FRA)
  • Loiseau Gérard, Montpellier SupAgro (FRA)
  • Madani Khodir, Université de Bejaia (DZA)

Source : Cirad-Agritrop (https://agritrop.cirad.fr/577416/)

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