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Communication Dans Un Congrès Année : 2018

Pulsed Electric Fields (PEF) as pre-treatment for freeze-drying of plant tissues

Résumé

The influence of pulsed electric fields (PEF) treatment on freeze-drying for potato and strawberry tissues was investigated. Samples were pre-treated by PEF ( E = 400 V cm(-1)) for different treatment times. Freeze-drying was carried out at -17 degrees C and 18.4 Pa or 30 Pa for potato and strawberry tissues, respectively. The effects of PEF pre-treatment was compared with intact samples. The drying time was reduced by 35% for potato and 30% for strawberry. The sample rehydration capacity and the electrolytes released during the rehydration were higher for pre-treated samples. Strawberries texture was characterized by the hardness, the cohesiveness and the springiness.
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Dates et versions

hal-02734226 , version 1 (04-03-2024)

Licence

Paternité - Pas d'utilisation commerciale - Pas de modification

Identifiants

Citer

L. Al-Sayed, Virginie Boyer, E. Madieta, Emira Mehinagic, J-L Lanoiselle. Pulsed Electric Fields (PEF) as pre-treatment for freeze-drying of plant tissues. 21st International Drying Symposium (IDS), Sep 2018, Valence, Spain. pp.8, ⟨10.4995/ids2018.2018.7484⟩. ⟨hal-02734226⟩
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