EMULSIFYING BEHAVIOR OF GUM-ARABIC .2. EFFECT OF THE GUM MOLECULAR-WEIGHT ON THE EMULSION DROPLET-SIZE DISTRIBUTION

被引：49

作者：

DICKINSON, E ^{[1
]}

GALAZKA, VB ^{[1
]}

ANDERSON, DMW ^{[1
]}

机构：

[1] UNIV EDINBURGH,DEPT CHEM,EDINBURGH EH9 3JJ,MIDLOTHIAN,SCOTLAND

来源：

CARBOHYDRATE POLYMERS | 1991年 / 14卷 / 04期

关键词：

D O I：

10.1016/0144-8617(91)90004-V

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The effect of the molecular weight of the gum arabic sample on droplet-size distributions of n-hexadecane-in-water emulsions (1% wt gum, 10% vol. oil) has been investigated at neutral pH. A high-molecular-weight fraction (0.87% nitrogen) corresponding to 10% of a natural gum (0.38% N) gives initially slightly larger droplets but better emulsion stability than the low-molecular-weight fraction (0.35% N) corresponding to the residual 90% of the original gum. Samples of a different gum arabic (0.35% N) subjected to different degrees of controlled degradation give decreasing emulsion stability with reduction in weight-average molecular weight from 3.1 x 10(5) to 2.2 x 10(5) Da.

引用

页码：385 / 392

页数：8

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