Frequency analysis of autonomously oscillating yeast cultures

被引：11

作者：

Birol, G ^{[1
]}

Zamamiri, AQM ^{[1
]}

Hjortso, MA ^{[1
]}

机构：

[1] Louisiana State Univ, Dept Chem Engn, Baton Rouge, LA 70803 USA

来源：

PROCESS BIOCHEMISTRY | 2000年 / 35卷 / 10期

基金：

美国国家科学基金会;

关键词：

Saccharomyces cerevisiae; autonomous oscillations; Fourier transformation;

D O I：

10.1016/S0032-9592(00)00144-8

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：

Measurements of state variables from oscillating chemostat cultures of Saccharomyces cerevisiae were analyzed by Fourier transformation. Of the signals tested, carbon dioxide and oxygen in the exit gas stream and dissolved oxygen in the medium, all gave identical results. Analysis of data from reactors operated at fixed conditions showed that after oscillations start, they pass through an extended transient lasting several days, before the oscillation period becomes constant. Under transient operating conditions, Fourier analysis revealed expected qualitative trends in the change of oscillation period with dilution rate. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：1085 / 1091

页数：7

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