Oxygen permeability of amylose and amylopectin films

被引：141

作者：

Forssell, P ^{[1
]}

Lahtinen, R ^{[1
]}

Lahelin, M ^{[1
]}

Myllärinen, P ^{[1
]}

机构：

[1] VTT Biotechnol, FIN-02044 Espoo, Finland

来源：

CARBOHYDRATE POLYMERS | 2002年 / 47卷 / 02期

关键词：

amylose; amylopectin films; permeability;

D O I：

10.1016/S0144-8617(01)00175-8

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The effects of water and glycerol contents on oxygen permeability of starch polymer films were investigated. Starch films were prepared of amylose and amylopectin by a casting technique and oxygen permeability was analysed at 20 degreesC. Glycerol contents were 0, 10, 20 or 30% while water content varied from 8 to 36%. Under ambient humidity both amylose and amylopectin films were excellent oxygen barriers, as good as the commercial ethylene vinyl alcohol film which was studied as a reference material. It was observed that the film permeabilities were determined by water content; below 15% water both starch films were good oxygen barriers, above 20% water the barrier property was lost. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：125 / 129

页数：5

共 14 条

[1] STUDY OF DIFFUSION AND PERMEATION OF GASES IN UNDRAWN AND UNIAXIALLY DRAWN FILMS MADE FROM POTATO AND RICE STARCH CONDITIONED AT DIFFERENT RELATIVE HUMIDITIES [J].