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Details van artikel 5 van 8 gevonden artikelen
| Titel: |
Study of diffusion and adsorption processes during the maceration of apple tissue by polygalacturonases |
| Auteur: |
Missang, C. Ella Denes, J. -M. Baron, A. |
| Verschenen in: |
Food biotechnology |
| Paginering: | Jaargang 13 (1996) nr. 1 pagina's 67-92 |
| Jaar: |
1996 |
| Inhoud: |
Summary Enzyme diffusion and adsorption were investigated during the maceration of apple parenchyma tissue by polygalacturonases (PG). To study the diffusion process, enzyme was directly spread on the top surface of the tissue pieces. Results showed that apple tissue is porous enough to allow protein molecules to diffuse into it but the diffusion of PG was limited in the thin layer at the surface of the tissue. To study the adsorption process, tissue pieces were placed into 5 mM sodium disulfite. When enzyme was added in the reaction mixture, the bulk of PG was instantaneously adsorbed onto tissue. Once the degradation had taken place, PG initially adsorbed onto tissue was transferred to the maceration products (pulp and juice). The initial distribution of PG between tissue and juice fractions appeared to be independent of the surface area and the PG amount. Conversely, PG distribution is modified at high ionic strength. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 5 van 8 gevonden artikelen
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