A METHOD AND A SYSTEM FOR DETECTION OF TRICHINELLA LARVAE IN MEAT SAMPLES

摘要

The present invention relates to a method and a system for detection of Trichinella larvae in meat samples. The method comprises digestion of an amount of meat to be tested for Trichinella larvae, where the digestion process results in a digested fluid, filtering the digested fluid by use of a first filter being designed to retain Trichi­nella larvae, and analysing by use of optical inspection the area of the first filter be­ing used for the filtration of the digested fluid, where the analysis is directed against identification of Trichinella larvae. It is preferred that the optical inspection comprises recording one or more images of the filtration area of the first filter being used for the filtration process. It is also preferred that a plurality of images are recorded, where the plurality of recorded images represents a plurality of parts of the filtration area of the first filter, and the recorded images may represent the whole area being used for the filtration process. A digital camera may used for obtaining the images on a digital form. The camera and a filtration plane being defined by the filtration area of the first filter may be arranged movably relative to each other. It is preferred that the filtration area or a part of the filtration area is represented by a multitude of recorded images. Here the multitude of recorded images may represent a set of different illuminations of the filtration area of the first filter. The analysing process may also comprise an image analysis of the recorded images, and the image analysis may include an ana­lysis of surface reflectance of objects being recorded at different wavelengths. The image analysis may also include a shape and size analysis of recorded objects.