Abstract: In a method of producing cocoa mass from nibs from cracked, fermented cocoa beans, nibs are used from which nibs parts of an undesired degree of fermentation have been sorted out, for example by analysis of the individual nibs pieces for fluorescence, preferably by irradiation with UV light at two different wavelengths, preferably of about 254 nm and about 366 nm with a cut-off filter at about 390 nm, the analytical results being the basis of any sorting out of separate nibs pieces, or by sorting of the cocoa beans before cracking by thickness, by density or by hardness. In this respect, the fluorescence detection method can be used for monitoring the separation.

Abstract: The present invention relates to seed products from seeds having low starch (e.g., 25-40%) and high ?-glucan (e.g., 10-25%), particularly from seeds with moderate amylose levels, particularly from mutated seeds (e.g., in which the AGPase gene is mutated), methods of preparing such products, methods for screening for seeds, ?-glucan preparations and novel seeds having low starch and high ?-glucan.

Abstract: Method for quality control of meat products, especially fish flesh, with regard to the presence of worms. The product to be subjected to quality control, or a sample thereof, is exposed to electromagnetic radiation within the range of about 800-1800 nm, and the irradiation transmitted through said product or sample as a result of this irradiation, is analyzed for identification of characteristic absorption by worms in said product or sample.

Abstract: 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.

Abstract: 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.

Abstract: 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.