The device based plastics drivers and lipids for evaluation of taste of beverages

摘要

Sensor based on conductive plastics and lipids for evaluation of taste of drinks ", which refers to the use of conductive polymers and ultra-thin films of these materials with mixed lipids, conventional plastics or resins business, obtained by various experimental techniques, P. For the manufacture of taste sensors make the recognition of the different tastes.Imitating the human senses. The data acquisition is performed by electrical impedance spectroscopy, obtaining the corresponding variations of the real and imaginary parts of the impedance or admittance system, depending on the frequency. These variations are caused by the differences in the composition of the chemical substances from both analysed on the concentration of the same.Because they are not destructive measures, the measures in alternating current does not affect the electric properties of the materials, transducers, allowing the continued use of these devices over time.The simplicity in the experimental system proposed results in a process cheaper for the quantification of taste, when compared to the techniques of chemical analysis, without being subject to the vicissitudes of human when compared to biological systems.To this end, ultra-thin films of Polyaniline and polypyrrole were deposited on a predetermined geometry of electrodes or microeletrodos interdigitados.The thickness control in the manufacture of these films in nano scale, allows a significant increase in the sensitivity of these devices, allowing the differentiation of similar substances on the palate, at concentrations below the limit of detection of human.This process is to solve the problems of assessment of taste and characterization of commercial beverages and satisfies the requirements for the manufacture of sensors with industrial interest for evaluation and analysis of the palate in different types of beverages for human consumption such as water, coffee Is tea, juices, beverages (wine, beer, liqu00fcores cacha u00e7 as,, etc.) and others, as well as the verification of inorganic and organic contaminants in systems that deal with the treatment of water for human consumption, can also be extended to its application in the pharmaceutical and cosmetic industries.