Effects of Pulsed Electric Field Treatment on Compression Properties and Solutes Diffusion Behaviors of Jerusalem artichoke.
Molecules
; 24(3)2019 Feb 03.
Article
em En
| MEDLINE
| ID: mdl-30717478
ABSTRACT
Jerusalem artichoke is widely used as raw material for industrial production of inulin. Pressing (compression) and diffusion are two effective technologies for bio-compounds' recovery from plants. In this work, pulsed electric field (PEF) treatment at 400, 600, and 800 V/cm during 100 ms was applied to facilitate juice and solutes recovery from Jerusalem artichoke. The application of PEF led to electroporation of cell membranes and enhanced the tissue compression/juice expression and solutes diffusion. The consolidation coefficient (calculated by application of semi-empirical model) of PEF treated sample at 800 V/cm was 6.50 × 10-7 m²/s, which is significantly higher than that of untreated sample (5.02 × 10-9 m²/s) and close to that of freeze-thawed sample. Diffusion experiments with PEF treated samples were carried out at 25, 50, and 75 °C. A PEF treatment of Jerusalem artichoke at 800 V/cm led to a similar diffusion behavior at 25 °C, compared to diffusion behavior obtained from untreated sample at 75 °C.
Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Métodos Terapêuticos e Terapias MTCI:
Terapias_biologicas
Assunto principal:
Pressão
/
Extratos Vegetais
/
Eletricidade
/
Helianthus
Idioma:
En
Revista:
Molecules
Ano de publicação:
2019
Tipo de documento:
Article
País de afiliação:
China