PERMEABILITY AND MECHANICAL-PROPERTIES OF CELLULOSE-BASED EDIBLE FILMS

被引：209

作者：

PARK, HJ ^{[1
]}

WELLER, CL ^{[1
]}

VERGANO, PJ ^{[1
]}

TESTIN, RF ^{[1
]}

机构：

[1] CLEMSON UNIV,DEPT FOOD SCI,CLEMSON,SC 29631

来源：

JOURNAL OF FOOD SCIENCE | 1993年 / 58卷 / 06期

关键词：

EDIBLE FILMS; COATINGS; MOISTURE BARRIER; GAS BARRIER; PERMEABILITY;

D O I：

10.1111/j.1365-2621.1993.tb06183.x

中图分类号：

TS2 [食品工业];

学科分类号：

0832 ;

摘要：

Factors affecting barrier properties [oxygen permeability (OP) and water vapor permeability (WVP)] and mechanical properties [tensile strength (TS) and elongation (E)] were investigated for methyl cellulose (MC) and hydroxypropyl cellulose (HPC) films. OP, WVP and TS of MC and HPC films increased as the molecular weight (MW) of the cellulose increased. E of MC films increased as MW increased, but E of HPC films was highest for the intermediate MW of 370,000. OP, WVP and TS of MC films were not a function of thickness, but E slowly increased as film thickness increased. OP and WVP of HPC films were not relatable to film thickness, but TS and E of HPC films slowly increased as film thickness increased. TS decreased and E increased for both film types as concentration of plasticizers was increased. Plasticizers enhanced or retarded OP and WVP of cellulose-based films, depending on their concentrations.

引用

页码：1361 / 1364

页数：4