Evaluation of mass transfer mechanisms during osmotic treatment of plant materials

Citation
Nk. Rastogi et al., Evaluation of mass transfer mechanisms during osmotic treatment of plant materials, J FOOD SCI, 65(6), 2000, pp. 1016-1019
Citations number
22
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Food Science/Nutrition
Journal title
JOURNAL OF FOOD SCIENCE
ISSN journal
0022-1147 → ACNP
Volume
65
Issue
6
Year of publication
2000
Pages
1016 - 1019
Database
ISI
SICI code
0022-1147(200009)65:6<1016:EOMTMD>2.0.ZU;2-0
Abstract
The proportion of intact, damaged, and ruptured (non-intact) cells (Zp) due to osmotic stress during osmotic treatment of potato was monitored using e lectrophysical measurement based on electrical impedance analysis. Osmotic stress on potato cell culture made cell membranes shrink thereby damaging t he cells. The proportion of the ruptured and shrunk cells within the sample s increased with the increase In concentration of solute In the osmotic sol ution. The osmotic removal of water from thin potato slices started at a cr itical osmotic pressure. Once the critical osmotic pressure was exceeded, m ass transfer was rapid and the cells lost substantial amounts of water due to rupture of cell membranes.