De Forenede Bryggerier A/s

Lumetech

Lars Munck

Gregory C Gibbons

Peter Haagensen

Svend A Jensen

Carol Feil

Poul Sigsgaard

Alicia De Francisco

Hans H Huss

Method of detecting worms in meat

A method for quality control of products from fish, meat, cattle, swine and poultry, for instance for controlling a process for treating or handling such products. The product to be subjected to quality control, or a sample thereof, is exposed to electromagnetic radiation within the range of about 325-360 nm, preferably about 340 nm, and any fluorescent radiation emitted by the product as a result of this irradiation, is analyzed for identifying characteristic fluorescence from biological components in the product or a sample thereof, the presence of such biological components determining the quality of the product. The quality control is carried out in dependence upon the analysis result. Analysis carried out in the wavelength range of about 365-490 nm permits identification of characteristic fluorescence from bones, cartilage, connective tissue and/or fat.

Method for quality control of products from fish, cattle, swine and

In a method for identifying one or more botanical component parts from plants, a sample of the component parts is irradiated with electromagnetic radiation within the visible and/or ultra-violet and/or X-ray range for excitation of the component parts to fluorescence which is analyzed for determining characteristic fluorescence from the component parts. For determining the relative contents of the component parts in the sample, intensity measurements are carried out on the characteristic fluorescences or the number of emitters of characteristic fluorescence is counted. For identifying starchy endosperm parts, aleurone layer parts and hull layer parts originating from seeds, in particular cereal kernels, in ground seed samples, samples are excited at approximately 275 nm, approximately 350 nm and approximately 450 nm, respectively, for obtaining characteristic fluorescence at approximately 330 nm from the starchy endosperm parts, at approximately 420/470 nm from the aleurone layer parts, and at approximately 520 nm from the hull layer parts. Characteristic X-ray fluorescence is obtained from the potassium of the starchy endosperm, phosphorus and sulfur from the aleurone layer and silica from the hull layer. For manual evaluation of the component part contents, the characteristic fluorescences of the samples are compared with color scales. Fluorescence analysis provides more reliable qualitative and quantitative analyses of botanical component parts than do visible color analyses and ash and fiber analyses and is ideally suited for the control of component part separation processes such as mill processes.

Method for identifying botanical component parts of ground seeds

An illumination device permitting microscopes, for use of the microscope as a fluorescence microscope, comprises a light-screening tube (2, 4) preferably of variable length, one end of the tube being connectible to the microscope objective and the other end being disposed to surround the sample which is intended for microscopic observation on the sample stage (1) of the microscope. An opening in the tube is arranged to direct high intensity UV and/or visible light towards the sample. In that the light is directed towards the sample bypassing the optics of the microscope, substantially unchanged light intensity will be realized from the light source to the sample, which considerably facilitates fluorescence studies with, in particular, microscope objectives of low magnifying power and low numerical aperture.

Illumination device for fluorescence microscopes

Growing community of inventors

Helsingor, Denmark

Lars Munck