Abstract: The present disclosure provides a portable device and method for controlling an alcoholic beverage through an at least partially transparent container. The method includes acquiring a fluorescence spectrum of the beverage through a wall of the container, normalizing a profile of a measured spectrum according to the maximum intensity of a reference spectrum, calculating a resemblance factor between the measured spectrum and the reference spectrum, and determining if the beverage is genuine according to the obtained value of the resemblance factor.

Abstract: The present disclosure provides a portable device and method for controlling an alcoholic beverage through an at least partially transparent container. The method includes acquiring a fluorescence spectrum of the beverage through a wall of the container, normalizing a profile of a measured spectrum according to the maximum intensity of a reference spectrum, calculating a resemblance factor between the measured spectrum and the reference spectrum, and determining if the beverage is genuine according to the obtained value of the resemblance factor.

Abstract: The present disclosure provides a portable device for controlling an alcoholic beverage that includes a single light source emitting a monochromatic excitation light beam of a wavelength between 350 and 650 nanometers, a beam splitter to reflect the light beam, a focus and collection lens, and a positioning device to orient the light beam along a direction substantially normal to an outer surface of the container. The positioning device positions the outer surface of the container at a predetermined distance from the focus lens. The device includes a filtering device for filtering fluorescence radiation captured by the focus lens to eliminate wavelengths shorter than or equal to the wavelength of the light beam. A spectrometer module produces a signal corresponding to the measured spectrum of the fluorescence radiation and an analysis module compares the measured spectrum to a reference spectrum.

Abstract: The present disclosure provides a portable device for controlling an alcoholic beverage that includes a single light source emitting a monochromatic excitation light beam of a wavelength between 350 and 650 nanometers, a beam splitter to reflect the light beam, a focus and collection lens, and a positioning device to orient the light beam along a direction substantially normal to an outer surface of the container. The positioning device positions the outer surface of the container at a predetermined distance from the focus lens. The device includes a filtering device for filtering fluorescence radiation captured by the focus lens to eliminate wavelengths shorter than or equal to the wavelength of the light beam. A spectrometer module produces a signal corresponding to the measured spectrum of the fluorescence radiation and an analysis module compares the measured spectrum to a reference spectrum.

Abstract: The invention relates to a method for extracting 2-phenylethanol, in which the 2-phenylethanol is extracted from the distillation residues obtained during the production of alcohol.

Abstract: The present invention relates to a process for producing cis-3-hexen-1-ol from an unsaturated fatty acid, in which said synthesis is carried out from the latter by the combined action of a natural system of enzyme(s) allowing the oxidation of said fatty acid to cis-3-hexenal and of a yeast allowing the reduction of cis-3-hexenal to cis-3-hexenol in a culture medium. According to a first characteristic of the present invention, the enzymatic system consists of a plant mass obtained by grinding leaves harvested whole without predilacerating them. According to a second characteristic of the present invention, the enzymatic system is introduced in the form of a ground cellular product obtained by grinding followed by cell disintegration. Finally, advantageously, a reagent chosen from a ferrous cation, acetylsalicylic acid, chlorophyll B and the enzyme catalase, makes it possible to increase the yields of cis-3-hexenol.

Abstract: The present invention relates to a process for producing vanillin. Culturing of a basidiomycete fungus of the genus Pycnoporus or of their variants and mutants is performed in a culture medium to which a benzenoid precursor of vanillin has been added, and the vanillin produced by bioconversion of the benzenoid precursor is recovered.