Product category:
Clinical chemistry analysis
News Release from: YSI (UK) | Subject: YSI 2700
Edited by the Laboratorytalk Editorial
Team on 29 October 2007
Measurement of glucose in bioethanol
production
In typical bioethanol production, the consumption of glucose over the course of 24 to 48 hour yeast fermentation is a common method of monitoring ethanol production efficiency
Glucose is the primary simple sugar that results from the enzymatic hydrolysis of starch and therefore the main carbon source for yeast in the production of ethanol in fermentation Although ethanol measurement (also offered by the YSI 2700) is important, glucose concentration profiles, and sometimes glucose consumption rates, are often more easily measured and are of great importance early in the fermentation process when adjustments to process can be made
This article was originally published on Laboratorytalk on 21 Apr 2008 at 8.00am (UK)
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The YSI 2700 Select biochemistry analyser employs enzyme electrodes to measure xylose and glucose simultaneously
Indispensible tool for food quality assurance
The YSI 2700 has become well-established in the food and beverage industry, helping companies to verify the quality of their product before it is packaged and sent to the customer
In addition, a set glucose concentration at the end of fermentation is often the signal to move the 'beer' to distillation.
HPLC is the analytical method of choice, however, the YSI 2700 has proven to be a valuable tool in monitoring glucose during fermentation.
Study performance data of the method indicates precision and accuracy that is comparable to HPLC (precision of samples studied proved to be better than 2%).
The enzyme-electrode based system not only provides rapid, accurate glucose measurements (total turnaround time of less than two minutes) but is also simple to use and easy to maintain.
Results are available earlier than HPLC (sometimes 30 minutes) and allow operators to make adjustments when they count.
The YSI 2700 automatically updates calibration on a user-defined schedule, or may be initiated at the user's command.
In conclusion the YSI 2700 used in glucose monitoring provides valuable information relevant to maximising ethanol production.
The measurements allow the operators to make timely decisions thus improving plant efficiency and reducing costs. Request a free brochure from YSI (UK) ...
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