On liquid-liquid mass transfer in two-liquid-phase fermentations

被引：1

作者：

A. Kollmer

A. Schmid

P. Rudolf von Rohr

B. Sonnleitner

机构：

[1] Institute of Process Engineering,

[2] Swiss Federal Institute of Technology,undefined

[3] CH-8092 Zurich,undefined

[4] Institute of Biotechnology,undefined

[5] Swiss Federal Institute of Technology,undefined

[6] CH-8092 Zurich,undefined

[7] Departement for Chemistry and Biotechnology,undefined

[8] University of Applied Sciences Winterthur,undefined

[9] P.O. Box 805,undefined

[10] CH-8401 Winterthur,undefined

来源：

Bioprocess Engineering | 1999年 / 20卷

关键词：

Interfacial Tension; Forced Convection; Biosurfactants; Drop Size Distribution; Surface Active Material;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Almost all two-liquid phase bioprocesses are characterized by the presence of surface active materials (biosurfactants), which significantly influence the interaction between the phases. In order to predict mass transfer rates during cultivations of Pseudomonas oleovorans biosurfactant was isolated from the biosuspension and added in defined amounts to n-octane/water model-dispersions. Effects of biosurfactant concentration on interfacial tension, mean Sauter-diameter, drop size distribution, dispersion stability and liquid-liquid mass transfer coefficients were studied. A comparison was made between calculated solvent transfer rates (STR) and measured solvent uptake rates (SUR) of P. oleovorans cultures.

引用

页码：441 / 448

页数：7