Preparation of Glucose Sensor Based on Keggin Type Polyoxometalate/Conducting Polymer Composite for Use in Food Industry

Yasemin Torlak, Rukiye Ayranci, Metin Ak


In continuous monitoring and control systems as required by automation, biosensors are greatly advantageous with their precision, stability, ease of use and response rates. In this study, a new amperometric glucose sensor has been fabricated based on a composite film prepared by electrochemical polymerization of carbazole derivative with having free amino group in presence of the Keggin type polyoxometalate (POM) anion, (nBu4N)3[PW9O34(tBuSiOH)3], in order to meet the needs of the sector. The enzymatic biosensor was prepared by immobilizing the Glucose Oxidase (GOx) enzyme to the surface modified with the POM/PAAC composite. Biosensor preparation and working conditions were optimized and analytical characterizations was carried out. The amperometric response of the POM/PAAC-GOx modified electrode versus varying concentrations of glucose was studied at a potential value of −0.7 V (Ag/AgCl). When the data obtained from these surfaces can be prepared in a short time, it was determined that they are sensitive to the presence of glucose in food samples such as cola and fruit juice. One of the innovations of this study is the shortening of the response time and the easy preparation of the biosensor. In addition to high linearity, short response time and long shelf life advantages in determining the glucose content in foods, it is thought that it will be an economical alternative with its easy preparation, ease of application and time and chemicals gain in measurements.


Food; Glucose sensor; Glucose Oxidase (GOD); Polyoxometalate (POM); Electropolymerization

Full Text:

PDF (Türkçe)


 Creative Commons License
This work is licensed under Creative Commons Attribution 4.0 International License

ISSN: 2148-127X

Turkish JAF Sci.Tech.

Turkish Journal of Agriculture - Food Science and Technology (TURJAF) is indexed by the following national and international scientific indexing services:





















Our Journals

Turkish Journal of Agriculture - Food Science and Technology

International Journal of Poultry - Ornamental Birds Science and Technology

Turkish Research Journal of Academic Social Science

Turkish Research Journal of Academic Technical Science

Turkish Research Journal of Academic Health and Medical Sciences

Our congresses

International Anatolian Agriculture, Food, Environment and Biology Congress (TARGID)

International Congress of the Turkish Journal of Agriculture - Food Science and Technology (TURJAF)

Our Youtube Channel


Our Books

Our Scientific Books

About Us

The Turkish Science and Technology Publishing (TURSTEP) is an online and open-access platform to publish recent research and articles of scholars worldwide. Founded in 2013 and based in Turkey, the TURSTEP as a platform for academics, educators, scholars, and students from Turkey and around the world, to connect with one another. The TURSTEP disseminates research that is proven or predicted to be of significant influence for the general public.


Contact Us

Please send all inquiries to the email:

Business Adress

Eğriköprü Mh. 75-28. Sk. 11/10 58050 Merkaz/Sivas, Turkey