Preparation of pyrazines

The present invention relates to a new process for the generation of pyrazines consisting in the bioconversion of hydroxyketones with 1,2-diaminopropane. New tetrahydropyrazine derivatives as well as new dihydropyrazine derivatives with high flavour and low threshold properties are disclosed. Such p...

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Hauptverfasser: BERGER, RALF GUENTER, BELRHLID, RACHID, FAY, LAURENT, BERNARD, JUILLERAT, MARCEL ALEXANDRE, KURNIADI, TOSHINARI
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creator BERGER, RALF GUENTER
BELRHLID, RACHID
FAY, LAURENT, BERNARD
JUILLERAT, MARCEL ALEXANDRE
KURNIADI, TOSHINARI
description The present invention relates to a new process for the generation of pyrazines consisting in the bioconversion of hydroxyketones with 1,2-diaminopropane. New tetrahydropyrazine derivatives as well as new dihydropyrazine derivatives with high flavour and low threshold properties are disclosed. Such pyrazines compounds exhibiting roasted and earthy aroma profiles may be used in the food and bevererage industry, especially chocolate, confectionery and coffee.
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New tetrahydropyrazine derivatives as well as new dihydropyrazine derivatives with high flavour and low threshold properties are disclosed. 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subjects BEER
BIOCHEMISTRY
CHEMISTRY
ENZYMOLOGY
FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE
FOODS OR FOODSTUFFS
FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BYSUBCLASSES A23B - A23J
HETEROCYCLIC COMPOUNDS
HUMAN NECESSITIES
METALLURGY
MICROBIOLOGY
MUTATION OR GENETIC ENGINEERING
ORGANIC CHEMISTRY
PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
SPIRITS
THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OFNUTRITIVE QUALITIES, PHYSICAL TREATMENT
THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
VINEGAR
WINE
title Preparation of pyrazines
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