skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Sequential injection analysis of ethanol using immobilized alcohol dehydrogenase

Journal Article · · Analytical Letters

A Sequential Injection (SI) system was used to analyze the ethanol concentration in fermentation broth. The method is based on the use of immobilized NAD{sup +} dependent alcohol dehydrogenase. A non-linear standard curve for ethanol (range 0.25-100 mM) was used to determine the concentration in fermentation broth and the results correlated well with HPLC measurements. The assay time was 140 s, 0.5 {mu}mol of cofactor was used for each determination, and the relative standard deviation was less than 6% when analyzing fermentation samples. The assay system is very stable and makes it possible to reduce the cofactor consumption while keeping the system set up simple.

Sponsoring Organization:
USDOE
OSTI ID:
433460
Journal Information:
Analytical Letters, Vol. 29, Issue 7; Other Information: PBD: May 1996
Country of Publication:
United States
Language:
English