Barrier, mechanical and optical properties of plasticized yam starch films

被引：255

作者：

Mali, S

Grossmann, MVE

García, MA

Martino, MN

Zaritzky, NE

机构：

[1] Univ Estadual Londrina, Dept Tecnol Alimentos & Med, Ctr Ciencias Agrarias, BR-86051990 Londrina, PR, Brazil

[2] Consejo Nacl Invest Cient & Tecn, CIDCA, RA-1033 Buenos Aires, DF, Argentina

[3] Natl Univ La Plata, Dept Ingn Quim, Fac Ingn, RA-1900 La Plata, Argentina

来源：

CARBOHYDRATE POLYMERS | 2004年 / 56卷 / 02期

关键词：

yam starch; biofilms; mechanical properties; permeability;

D O I：

10.1016/j.carbpol.2004.01.004

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Yam starch films were obtained by casting. Effect of different film thicknesses (0.07, 0.09, 0.11 mm) and concentrations of glycerol (1.30, 1.65 and 2.00% w/w) and starch (3.30, 3.65 and 4.00% w/w) were evaluated. Barriers, mechanical and optical properties of films were analyzed. Films were homogeneous and transparent without insoluble particles. Water vapor and O-2 permeabilities increased with glycerol concentration. Opacity of yam starch films depended on film thickness, higher the thickness, more opaque the sample. Films with 4.00% w/w starch, 1.30% w/w glycerol and 0.11 mm thickness gave the highest puncture strength. Puncture deformation increased with glycerol content. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：129 / 135

页数：7

共 35 条

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