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Development of a flow-injection analysis (FIA) enzyme sensor for fructosyl amine monitoring

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Abstract

An enzyme-sensor system with flow-injection analysis (FIA) has been developed for the detection of fructosyl amine compounds; the sensor utilizes fructosyl amine oxidase isolated from the marine yeast Pichia sp. N1-1 strain. With this FIA system 0.2 to 10 mmol L–1 fructosyl valine can be determined. The sensor is approximately five times more sensitive to fructosyl valine, a model compound for glycated hemoglobin HbAff1c, than to N ε-fructosyl lysine, a model compound for glycated albumin. This FIA system can also be used to detect fructosyl dipeptides. The operational stability of the sensor enabled more than 120 consecutive sample injections over a period of approximately 20 h.

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Ogawa, K., Stöllner, D., Scheller, F. et al. Development of a flow-injection analysis (FIA) enzyme sensor for fructosyl amine monitoring. Anal Bioanal Chem 373, 211–214 (2002). https://doi.org/10.1007/s00216-002-1319-6

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  • DOI: https://doi.org/10.1007/s00216-002-1319-6

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