Innovative sensors to determine fish freshness
ثبت نشده
چکیده
Fish freshness quality is typically determined by sensory assessment, which relies on the use of trained assessors. Commonly used schemes include Torry and the Quality Index Method (QIM). However it is desirable to find an alternative, instrumental method to provide an objective system for determining fish freshness. Ideally any such method should be reliable, rapid, non-destructive and easy to use. A wide number of instrumental techniques have been tested yet few have made it to commercial reality. In this study, several different methods have been used to evaluate cod over time, to assess which has the greatest potential in fish freshness assessment. These included spectroscopy and colour imaging measurement.
منابع مشابه
Rapid Classification of Hairtail Fish and Pork Freshness Using an Electronic Nose Based on the PCA Method
We report a method for building a simple and reproducible electronic nose based on commercially available metal oxide sensors (MOS) to monitor the freshness of hairtail fish and pork stored at 15, 10, and 5 °C. After assembly in the laboratory, the proposed product was tested by a manufacturer. Sample delivery was based on the dynamic headspace method, and two features were extracted from the t...
متن کاملA Review on Correlations between Fish Freshness and pH during Cold Storage
Freshness of fish in most markets was found to be the significant quality parameter. The state of fish freshness was assessed by various methods but most of them were costly, time-consuming and not user friendly tools which made the development of simple, easy, undemanding and reliable system for the evaluation of fish freshness unresolved goal. The findings of many researchers revealed that th...
متن کاملSelective Detection of Aroma Components By Acoustic Wave Sensors Coated With Conducting Polymer Films
Eight conducting polymer films of polypyrrole and its derivatives were used as sensitive and selective coatings for thickness-shear mode (TSM) acoustic wave sensors. They were applied to the detection of volatile alcohols and carbonyl compounds, which are important fish freshness determinants. The conducting polymers were synthesized and coated on TSM devices by electrochemical oxidation. The e...
متن کاملFish freshness detection by a computer screen photoassisted based gas sensor array.
In the last years a large number of different measurement methodologies were applied to measure the freshness of fishes. Among them the connection between freshness and headspace composition has been considered by gas chromatographic analysis and from the last two decades by a number of sensors and biosensors aimed at measuring some characteristic indicators (usually amines). More recently also...
متن کاملGlossiness and Perishable Food Quality: Visual Freshness Judgment of Fish Eyes Based on Luminance Distribution
BACKGROUND Previous studies have reported the effects of statistics of luminance distribution on visual freshness perception using pictures which included the degradation process of food samples. However, these studies did not examine the effect of individual differences between the same kinds of food. Here we elucidate whether luminance distribution would continue to have a significant effect ...
متن کامل