Application of a microbial sensor for determination of short-chain fatty acids in raw milk samples
| Autor: | Hiroyuki Ukeda, Gotthold Wagner, Günther Weis, Henning Klostermeyer, Manfred Miller, Rolf D. Schmid |
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| Rok vydání: | 1992 |
| Předmět: |
Sensor system
Chromatography Chromatography Gas Chemistry Microorganism food and beverages General Chemistry Raw milk Fatty Acids Nonesterified Fatty Acids Volatile Biochemistry Industrial and Manufacturing Engineering law.invention Milk law Bioassay Animals Biological Assay Cattle Gas chromatography Chemical composition Clark electrode Biosensor Food Science Biotechnology |
| Zdroj: | Zeitschrift fur Lebensmittel-Untersuchung und -Forschung. 195(1) |
| ISSN: | 0044-3026 |
| Popis: | A microbial sensor system, based on the use of immobilized Arthrobacter nicotiana and an oxygen electrode, was applied to determine free short-chain fatty acids in raw milk samples and the result was compared with gas chromatography (GC) and a titrimetric method. The sensor response was linearly related to the concentration of short-chain fatty acids obtained by GC (n = 10, r = 0.92) and to the total concentration of free fatty acids obtained by titrimetric measurement (n = 10, r = 0.78). This result suggests that the present microbial sensor can selectively determine free short-chain fatty acids in raw milk samples and may be useful as a very fast detection method of rancidity in milk. |
| Databáze: | OpenAIRE |
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