A finite element model for mechanical deformation of single tomato suspension cells

被引：55

作者：

Dintwa, E. ^{[1
]}

Jancsok, P. ^{[1
,2
]}

Mebatsion, H. K. ^{[1
]}

Verlinden, B. ^{[1
]}

Verboven, P. ^{[1
]}

Wang, C. X. ^{[2
]}

Thomas, C. R. ^{[2
]}

Tijskens, E. ^{[1
]}

Ramon, H. ^{[1
]}

Nicolai, B. ^{[1
]}

机构：

[1] Katholieke Univ Leuven, Flanders Ctr Postharvest Technol BIOSYST MeBioS, B-3001 Louvain, Belgium

[2] Univ Birmingham, Sch Chem Engn, Birmingham B15 2TT, W Midlands, England

来源：

JOURNAL OF FOOD ENGINEERING | 2011年 / 103卷 / 03期

基金：

英国工程与自然科学研究理事会;

关键词：

Finite element; Model; Single cell compression; Tomato cell; Micromanipulation; Texture; Fruit; WALL MATERIAL PROPERTIES; YEAST-CELLS; VEGETATIVE TISSUE; HYDRAULIC CONDUCTIVITY; COMPRESSION; STRENGTH; PERMEABILITY; MEMBRANES; RHEOLOGY; BEHAVIOR;

D O I：

10.1016/j.jfoodeng.2010.10.023

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A finite element model was developed to simulate compression experiments on single tomato cells from suspension cultures. The cell was modelled as a thin-walled liquid-filled sphere with a permeable wall allowing flow of fluid out in response to internal turgor increases due to the compression. The permeability of the cell wall/plasma lemma was considered to be constant throughout compression. The contact between cell and compression probe was modelled using a soft contact boundary condition. The cytoplast was represented as an internal pressure acting on the plasma lemma and cell wall. Assuming linear elastic constitutive behaviour for the cell wall, and using previously determined cell wall material parameters, the model was found to be remarkably capable of reproducing the force-deformation behaviour of a single cell in compression, as well as its deformed shape, even for large strains. The model might be used as a building block to construct more comprehensive tissue deformation models. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：265 / 272

页数：8

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