Low-Cost Electrochemical Determination of Acrylami... - BV FAPESP
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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Low-Cost Electrochemical Determination of Acrylamide in Processed Food Using a Hemoglobin - Iron Magnetic Nanoparticle - Chitosan Modified Carbon Paste Electrode

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Author(s):
Navarro, Kamily M. [1] ; Silva, Jocimara C. [1] ; Ossick, Marina Vian [1] ; Nogueira, Alessandra B. [1] ; Etchegaray, Augusto [1] ; Mendes, Renata K. [1]
Total Authors: 6
Affiliation:
[1] Pontificia Univ Catolica Campinas PUC Campinas, Fac Quim, Rua Prof Doutor Euryclides Jesus Zerbini 1516, BR-13087571 Campinas, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: Analytical Letters; v. 54, n. 7 JUL 2020.
Web of Science Citations: 0
Abstract

Acrylamide is a neurotoxin that is potentially carcinogenic to animals. In processed food, it is a side product of the Maillard reaction that is primarily formed when a carbohydrate-reach food is fried or baked. In this work, a sensitive and low-cost biosensor was prepared on a simple carbon paste electrode. Hemoglobin was initially fixed on a hybrid nanocomposite composed of iron magnetic nanoparticles with a layer of chitosan. The nanocomposite/hemoglobin was mixed with carbon paste to produce a biosensor. The device presented repeatability for both measurement and construction, with relative errors of 4.14% and 4.68%, respectively. The calibration curve presented linearity (R(2)equal to 0.9945) for acrylamide concentrations ranging from 10 to 171 nmol L-1. The limits of detection was 0.06 nmol L-1, respectively, with analytical recoveries from 90.83% to 103.64%. The device was successfully used for the analysis of French fries . These results show that a simple and sensitive device was constructed, which is suitable to monitor the levels of acrylamide in food. (AU)

FAPESP's process: 13/20570-6 - Sustainable production of biosurfactants with applications for medicine and environmental remediation
Grantee:Augusto Etchegaray Júnior
Support Opportunities: Regular Research Grants