INCREASED OXYGEN-TRANSFER IN A YEAST FERMENTATION USING A MICROBUBBLE DISPERSION

被引：23

作者：

KASTER, JA ^{[1
]}

MICHELSEN, DL ^{[1
]}

VELANDER, WH ^{[1
]}

机构：

[1] VIRGINIA POLYTECH INST & STATE UNIV,DEPT CHEM ENGN,BLACKSBURG,VA 24061

来源：

APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY | 1990年 / 24-5卷

关键词：

cerevisiae; Microbubble dispersion; oxygen transfer; Saccharomyces;

D O I：

10.1007/BF02920271

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

A microbubble dispersion (MBD) was used to supply oxygen for aerobic fermentations in a standard 2 L stirred tank fermenter. The microbubble dispersion was formed using only surfactants produced naturally. Growth rates of Saccharomyces cerevisiae cultures were found to be equal or greater with MBD sparging than with gas sparging. The oxygen transfer coefficent with MBD sparging was found to be 190/h and independent of impeller speed from 100-580 rpm. The oxygen transfer coefficient with air sparging rose from 55 to 132/h over the same range of impeller speeds. Power requirements for the fermenter systems were estimated. © 1990 Humana Press Inc.

引用

页码：469 / 484

页数：16

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