1. Use of array of conducting polymers for differentiation of coconut oil products.
- Author
-
Rañola RA, Santiago KS, and Sevilla FB 3rd
- Subjects
- Cluster Analysis, Coconut Oil, Electric Impedance, Electroplating, Food Quality, Plant Oils chemistry, Polytetrafluoroethylene chemistry, Principal Component Analysis, Volatilization, Electric Conductivity, Electrochemistry instrumentation, Plant Oils analysis, Polymers chemistry
- Abstract
An array of chemiresistors based on conducting polymers was assembled for the differentiation of coconut oil products. The chemiresistor sensors were fabricated through the potentiostatic electrodeposition of polyaniline (PANi), polypyrrole (PPy) and poly(3-methylthiophene) (P-3MTp) on the gap separating two planar gold electrodes set on a Teflon substrate. The change in electrical resistance of the sensors was measured and observed after exposing the array to the headspace of oil samples. The sensor response was found rapid, reversible and reproducible. Different signals were obtained for each coconut oil sample and pattern recognition techniques were employed for the analysis of the data. The developed system was able to distinguish virgin coconut oil (VCO) from refined, bleached & deodorised coconut oil (RBDCO), flavoured VCO, homemade VCO, and rancid VCO., (Copyright © 2015 Elsevier B.V. All rights reserved.)
- Published
- 2016
- Full Text
- View/download PDF