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Document type:
Zeitschriftenaufsatz 
Author(s):
Geier, Dominik; Heermann, Katrin; Hussein, Mohamed; Becker, Thomas 
Title:
Effects of yeast and maltose concentration on ultrasonic velocity and attenuation coefficient and its application for process monitoring 
Abstract:
Monitoring substrate and cell concentration is important for controlling yeast propagation and fermentation processes. This usually requires two instruments, a density meter, and an optical turbidity meter. This paper presents a method for simultaneously determining yeast and maltose concentration with a single ultrasonic sensor. Ultrasonic velocity and attenuation were measured at varying maltose and yeast cell concentrations from 0 to 4 wt%. Ultrasonic velocity increased linearly with both yea...    »
 
Keywords:
Attenuation coefficient Maltose Saccharomyces cerevisiae Ultrasonic velocity Ultrasound 
Journal title:
Engineering in Life Sciences 
Year:
2014 
Journal volume:
14 
Journal issue:
Pages contribution:
433-441 
Print-ISSN:
1618-2863