Assessment Of Meat Quality Based On The Electronic Tongue

The current feed industry and intensified animal husbandry have met the quantity requirement of the meat, meanwhile, the quality of meat decreases. The traditional sensory evaluation methods have many human factors, which result in the lack of objectivity and consistency. To some extension, the result with the physicochemical and histological methods can reflect the quality of meat; they can not meet the requirements of modern animal husbandry industry of meat production and consumption of meat quality assessment. The focus of meat science is how to monitor, rating labeling and freshness assessment of meat.With the increasing research on the biological taste and the requirement of sensory evaluation, the research of the electronic tongue which imitating the human beings' tongue has been improved. In food industry, it is widely used to control and monitor the meat quality, and forecast the shelf-life span, such as the diary, beverage and tea. But so far, relative researches about electronic tongue on the assessment of meat quality have not been reported. The pork, chicken and fish were chosen as the experiment objects, the multifrequency large amplitude pulse tongue made by our laboratory was used in the assessment, in order to establish the evidence about meat difference and the speedy and precise differentiating of freshness.(1) The pork was measured as representative sample to determine the experiment parameters. As the pretreatment, the meat was mixed with distilled water in the ratio of 1:5 (g/ml). The suitable sensors array for analysis pork quality was the array with platinum electrode, gold electrode, titanium electrode, Tungsten (W) electrode, palladium electrode. In different storage time, the differences of meat was analyzed every 24h. The accuracy rate of the differentiating on the unknown samples reached above 85%(p<0.05). The separation terms were calculated between different clusters, and the relationship with the discrimination of work electrodes. The results showed when d (the separation term) > 2, different meat samples can be discriminated greatly.(2) The electronic tongue was applied in the discrimination of different meat samples, which comes from different species, different part of the bodies and different storage time. The measure parameters were determined according to the previous experiment. The result shows that the electronic tongue can classify different meat samples, and reflect the regulations of the change of meat in different storage time.The multifrequency large amplitude pulse tongue can be used for analysis of the integral quality characteristic of the samples. An effective method is provided to control and monitor the meat quality, and forecast the shelf-life span. The experiment showed that the electronic tongue is of great importance in the assessment of meat quality. Electronic tongue is used to analysis the integral quality characteristic of samples, An effective method is provided to control and monitor the meat quality, and forecast the shelf-life span. The experiment showed that the electronic tongue is of great importance in the assessment of meat quality.