Development of a trimethylamine gas biosensor system

A trimethylamine (TMA) gas biosensor was developed, based on the immobilized mould, Penicillium decumbens, an oxygen electrode, a flow cell, a peristaltic pump, a recorder and a buffer tank. The optimum conditions for the sensor were: pH 7·6, temperature 30°C, flow rate 0·3 ml/min, and sample volume...

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Veröffentlicht in:	Biosensors & bioelectronics 1994, Vol.9 (8), p.593-599
Hauptverfasser:	Li, Ningjun, Endo, Hideaki, Hayashi, Tetsuhito, Fujii, Tateo, Takai, Rikuo, Watanabe, Etsuo
Format:	Artikel
Sprache:	eng
Schlagworte:	Biological and medical sciences biosensor Biosensors Biotechnology fish freshness Food industries Fundamental and applied biological sciences. Psychology General aspects Methods of analysis, processing and quality control, regulation, standards Methods. Procedures. Technologies P. decumhens (IAM7275) Penicillium decumbens trimethylamine Various methods and equipments
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Beschreibung
Zusammenfassung:	A trimethylamine (TMA) gas biosensor was developed, based on the immobilized mould, Penicillium decumbens, an oxygen electrode, a flow cell, a peristaltic pump, a recorder and a buffer tank. The optimum conditions for the sensor were: pH 7·6, temperature 30°C, flow rate 0·3 ml/min, and sample volume 50 μl. Upon measurement of TMA concentrations in fish muscle, a good correlation was found between results obtained from the sensor and those obtained from gas-liquid chromatography (GLC). The correlation coefficient was 0·84. Each assay lasted 30 min. The proposed sensor was stable even after 37 days.
ISSN:	0956-5663 1873-4235
DOI:	10.1016/0956-5663(94)80052-9