MULTIPLE-PHASE EMULSIONS USING MICROBIAL EMULSIFIERS

被引：14

作者：

PANCHAL, CJ ^{[1
]}

ZAJIC, JE ^{[1
]}

GERSON, DF ^{[1
]}

机构：

[1] UNIV WESTERN ONTARIO,DEPT CHEM & BIOCHEM ENGN,LONDON N6A 5B9,ONTARIO,CANADA

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 1979年 / 68卷 / 02期

关键词：

D O I：

10.1016/0021-9797(79)90284-4

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Bioemulsifiers were isolated from a bacterial strain Corynebacterium Sp. PPS-II grown in mineral salts medium supplemented with aliphatic hydrocarbons. The lipid extract had hydrophobic properties and the polysaccharide polymer was hydrophilic. These emulsifiers were used to prepare multiple-phase W/O/W emulsions adopting the two-step emulsification procedure of Matsumoto et al. J. Colloid Interface Sci. 57, 353 (1976). The percentage formation of the multiple emulsion was found to be a function of the concentrations of the two emulsifiers, the phase volume Φw/o/w, and the spreading tension of water on the oil phase. Very low concentrations of the lipid extract (about 0.10% w/v) gave excellent percentage formation of the multiple emulsion (about 90%). Emulsion stability ranged from a few hours to several days. © 1979.

引用

页码：295 / 307

页数：13

共 24 条

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