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Determination of glucose in instant coffee with an enzyme electrode

✍ Scribed by R. Matsukura; L.M. Aleixo; O.E.S. Godinho; G. de Oliveira Neto

Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
265 KB
Volume
280
Category
Article
ISSN
0003-2670

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✦ Synopsis

An

amperometric method utilizing an enzyme electrode was developed for the determination of the glucose content of instant coffee. The electrode was constructed by combining an oxygen electrode with a p-o-glucose ozidase-immobilized collagen membrane. Samples of instant coffee were analysed and the results obtained by the proposed method and by the established AOAC method agreed well (r = 0.9964). The sensor was stable for more than 2 weeks and for 320 analyses.

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