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Pulsed Electric Fields (PEF) as pre-treatment for freeze-drying of plant tissues
- Source :
- RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia, instname, 21st International Drying Symposium (IDS), 21st International Drying Symposium (IDS), Sep 2018, Valence, Spain. pp.8, ⟨10.4995/ids2018.2018.7484⟩
- Publication Year :
- 2018
- Publisher :
- Editorial Universitat Politècnica de València, 2018.
-
Abstract
- The influence of pulsed electric fields (PEF) treatment on freeze-drying for potato and strawberry tissues was investigated. Samples were pre-treated by PEF ( 400 V cm-1) for different treatment times. Freeze-drying was carried out at -17°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.Keywords: Pulsed Electric fields; Freeze-drying; Potato; Strawberry; Textural Properties.
- Subjects :
- Pre treatment
Intensification
Materials science
Energy
Dehydration
[SDV]Life Sciences [q-bio]
Evaporation
Sublimation
Dewatering
Strawberry
[SHS]Humanities and Social Sciences
Environmental
Diffusion
Freeze-drying
Textural Properties
Emerging technologies
Electric field
Process control
Products quality
Pulsed electric fields
Potato
Biomedical engineering
Drying
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia, instname, 21st International Drying Symposium (IDS), 21st International Drying Symposium (IDS), Sep 2018, Valence, Spain. pp.8, ⟨10.4995/ids2018.2018.7484⟩
- Accession number :
- edsair.doi.dedup.....4e27fa1ebffa03182d6f139e6866ed7a