Abrégé

The invention relates to a method for the production of hulupones, in particular for the production of hulupones products, suitable for beer bittering, essentially free of compounds, typically formed as side-products during the lupulones oxidation, that can cause negative impact in terms of aroma, taste or haze upon brewing application. The invention also relates to hulupones products, suitable for beer bittering and obtainable by the method of the invention, essentially free of compounds with negative aroma, taste or haze impact upon addition of the hulupones products during the brewing process. The invention also relates to beer bittering with hulupones products, obtainable by the method of the invention, not causing an undesirable or unacceptable aroma, taste or haze impact in the bittered beer.

Classes IPC  ?

• C12C 3/12 - Produits isomérisés à partir du houblon
• C12C 7/20 - Cuisson du moût de brasserie
• C12C 11/11 - Traitements après fermentation, p. ex. carbonatation ou concentration

Abrégé

The invention relates to a method for preparing a brewed beverage, in particular a light-coloured lager or ale beer, (to be) bottled, (to be) stored, (to be) offered, (to be) served or (to be) consumed in a UV-VIS-transmittant bottle, comprising the addition of hulupones and/or reduced hulupones during the brewing process in an effective amount to obtain a brewed beverage, wherein the fraction of hulupones and/or reduced hulupones in the total of isohumulones and (reduced) hulupones is at least 25 mol %, The invention further relates to a brewed beverage, in particular a light-coloured lager beer or ale beer, bottled, (to be) stored, (to be) offered, (to be) served or (to be) consumed in a UV-VIS-transmittant bottle, comprising (reduced) hulupones and wherein the frac-tion of hulupones and/or reduced hulupones in the total of isohumulones and (reduced) hulupones is at least 25 mol %.

Classes IPC  ?

• C12C 3/12 - Produits isomérisés à partir du houblon
• C12C 5/00 - Autres matières premières pour la préparation de la bière
• C12C 11/07 - Fermentation continue
• C12H 1/22 - Vieillissement ou mûrissage par emmagasinage, p. ex. blondissement de la bière

Abrégé

The invention relates to a method for preparing a brewed beverage, in particular a beer, comprising an aqueous process for isomerization of alpha-acids from an alpha-acids containing matter, separate from the wort boiling in the brew kettle, using one type or more than one type of complexes of metal cations and chelating agents, thereby preparing an aqueous mixture comprising iso-alpha-acids. The invention further relates to said method further comprising the addition of said aqueous mixture, optionally further processed, comprising iso-alpha-acids during the brewing process, in particular to the (unfermented) wort.

Classes IPC  ?

• C12C 3/12 - Produits isomérisés à partir du houblon
• C12C 3/00 - Traitement du houblon

Abrégé

The invention relates to a method for preparing a brewed beverage, in particular a light-coloured lager or ale beer, (to be) bottled, (to be) stored, (to be) offered, (to be) served or (to be) consumed in a UV-VIS-transmittant bottle, comprising the addition of hulupones and/or reduced hulupones during the brewing process in an effective amount to obtain a brewed beverage, wherein the fraction of hulupones and/or reduced hulupones in the total of isohumulones and (reduced) hulupones is at least 25 mol%. The invention further relates to a brewed beverage, in particular a light- coloured lager beer or ale beer, bottled, (to be) stored, (to be) offered, (to be) served or (to be) consumed in a UV-VIS-transmittant bottle, comprising (reduced) hulupones and wherein the fraction of hulupones and/or reduced hulupones in the total of isohumulones and (reduced) hulupones is at least 25 mol%.

Classes IPC  ?

• C07C 49/743 - Composés non saturés comportant un groupe cétone faisant partie d'un cycle contenant des groupes hydroxyle avec insaturation autre que celle des cycles, p. ex. humulones, lupulones
• C12C 3/00 - Traitement du houblon
• C12C 5/02 - Produits d'addition pour la bière
• C12C 7/00 - Préparation du moût
• C12C 11/00 - Procédés de fermentation de la bière

Abrégé

The invention relates to a method for preparing a brewed beverage, in particular a light-coloured lager or ale beer, which is (to be) offered, (to be) served or (to be) consumed in a (UV-VIS-transmittant) drinking vessel (while exposed to sunlight or other (artificial) sources of UV and/or VIS light), comprising the addition of hulupones and/or reduced hulupones during the brewing process in an effective amount to obtain a brewed beverage, wherein the fraction of hulupones and/or reduced hulupones in the total of isohumulones and (reduced) hulupones is at least 25 mol%. The invention further relates to a brewed beverage, in particular a light- coloured lager beer or ale beer, which is (to be) offered, (to be) served or (to be) consumed in a (UV-VIS-transmittant) drinking vessel (while exposed to sunlight or other (artificial) sources of UV and/or VIS light), comprising (reduced) hulupones and wherein the fraction of hulupones and/or reduced hulupones in the total of isohumulones and (reduced) hulupones is at least 25 mol%.

Classes IPC  ?

• C12C 5/02 - Produits d'addition pour la bière
• C12C 3/00 - Traitement du houblon
• C07C 45/32 - Préparation de composés comportant des groupes C=O liés uniquement à des atomes de carbone ou d'hydrogènePréparation des chélates de ces composés par oxydation avec l'oxygène moléculaire

Abrégé

The invention relates to a method for preparing a brewed beverage, in particular a light-coloured lager or ale beer, (to be) bottled, (to be) stored, (to be) offered, (to be) served or (to be) consumed in a UV-VIS-transmittant bottle, comprising the addition of hulupones and/or reduced hulupones during the brewing process in an effective amount to obtain a brewed beverage, wherein the fraction of hulupones and/or reduced hulupones in the total of isohumulones and (reduced) hulupones is at least 25 mol%. The invention further relates to a brewed beverage, in particular a light- coloured lager beer or ale beer, bottled, (to be) stored, (to be) offered, (to be) served or (to be) consumed in a UV-VIS-transmittant bottle, comprising (reduced) hulupones and wherein the fraction of hulupones and/or reduced hulupones in the total of isohumulones and (reduced) hulupones is at least 25 mol%.

Classes IPC  ?

• C12C 5/02 - Produits d'addition pour la bière
• C12C 3/00 - Traitement du houblon
• C07C 45/32 - Préparation de composés comportant des groupes C=O liés uniquement à des atomes de carbone ou d'hydrogènePréparation des chélates de ces composés par oxydation avec l'oxygène moléculaire

Abrégé

The invention relates to a method for preparing a brewed beverage, in particular for brewing a beer, comprising adding alkali metal salts of alpha-acids and beta- acids to wort before or during boiling of the wort, and – after boiling of the wort – subjecting the wort to a fermentation step wherein the brewed beverage (or beer) is produced. The method comprises contacting (blending or mixing) an alpha-acid and beta-acid containing matter with one or more alkali metal compounds, thereby forming alkali metal humulates and alkali metal lupulates, prior to the addition to the (boiling) wort.

Classes IPC  ?

• C12C 3/08 - Extraits par solvant obtenus à partir du houblon
• C12C 7/20 - Cuisson du moût de brasserie

Abrégé

The present invention relates to a method for extraction and dissolution of hop acids, including alpha-acids, iso-alpha-acids, beta- acids and derivatives thereof, in aqueous media, comprising the formation of quaternary ammonium salts of hop acids with quaternary ammonium compounds, preferably choline compounds, or mixtures thereof. The invention further relates to, the use of quaternary ammonium salts of hop acids in the beer brewing process. The present invention further relates to a method for preparing a brewed beverage, particularly for brewing a beer, and in particular to a method to improve the utilization of hop acids, including alpha-acids and (reduced) iso-alpha-acids in the brewing process.

Classes IPC  ?

• C12C 3/08 - Extraits par solvant obtenus à partir du houblon
• C12C 3/12 - Produits isomérisés à partir du houblon

Abrégé

The invention relates to a method for extraction into an aqueous medium of hop acids from a hop acids containing matter and for dissolution in an aqueous medium of hop acids, comprising contacting a hop acids containing matter with carbon-containing chemical substances having at least one functional group containing a nitrogen atom with a lone electron pair and at least one other polar and/or hydrophilic functional group, thereby forming complexes of hop acids with the carbon-containing chemical substances with at least one functional group containing a nitrogen atom with a lone electron pair and at least one other polar and/or hydrophilic functional group. The present invention further relates to a method for preparing a brewed beverage, particularly for brewing a beer, and in particular to a method to improve the utilization of hop acids, including alpha-acids and iso-alpha-acids, in the brewing process.

Classes IPC  ?

• C12C 3/08 - Extraits par solvant obtenus à partir du houblon
• C12C 7/24 - Clarification du moût de brasserie entre la cuisson avec le houblon et le refroidissement
• C12C 11/11 - Traitements après fermentation, p. ex. carbonatation ou concentration

Abrégé

The invention relates to a process for the production of hexahydro-iso-alpha-acids starting from iso-alpha-acids (or tetrahydro-iso-alpha-acids) in which iso-alpha-acids (or tetrahydro-iso-alpha-acids) are mixed with a heterogeneous ruthenium containing catalyst, that catalyzes the hydrogenation from iso-alpha-acids or tetrahydro-iso-alpha-acids to hexahydro-iso-alpha-acids, either in solvent-free conditions, or in the presence of a solvent phase (e.g. carbon dioxide, water, ethanol or another organic solvent, or mixtures thereof), and in the absence or presence of other hop compounds (such as beta-acids). The resulting mixture is then subjected to a temperature at which the iso-alpha-acid (or tetrahydro-iso-alpha-acid) containing reaction medium is sufficiently low in viscosity to allow easy mixing with the heterogeneous ruthenium containing catalyst and held under a hydrogen containing atmosphere (either pure hydrogen gas or mixed with an inert gas) for a reaction time sufficient to effect high conversion of the iso-alpha-acid (or tetrahydro-iso-alpha-acid) reactant into the hexahydro-iso-alpha-acid product.

Classes IPC  ?

• C07C 45/66 - Préparation de composés comportant des groupes C=O liés uniquement à des atomes de carbone ou d'hydrogènePréparation des chélates de ces composés par des réactions ne créant pas de groupe C=O par élimination d'atomes d'hydrogène ou de groupes fonctionnelsPréparation de composés comportant des groupes C=O liés uniquement à des atomes de carbone ou d'hydrogènePréparation des chélates de ces composés par des réactions ne créant pas de groupe C=O par hydrogénolyse de groupes fonctionnels par déshydratation

Abrégé

The invention relates to a process for the production of iso-alpha-acids starting from alpha-acids in which an alpha-acid containing hop extract is mixed with a carbon-containing chemical compound with one or more functional groups containing a (basic) nitrogen atom with a lone pair (or mixtures thereof), either in solvent-free conditions or in the presence of solvents and preferably under an oxygen-free atmosphere. The resulting mixture is subjected to a temperature of at least 278 K for a time sufficient to effect the intended conversion of the alpha-acid reactant into the iso-alpha-acid product. The present invention further relates to iso-alpha-acid compositions obtained by said improved isomerisation process and to the use of said iso-alpha-acid compositions as bittering formulation and/or as source to obtain reduced or hydrogenated iso-alpha-acid compositions.

Classes IPC  ?

• C12C 3/12 - Produits isomérisés à partir du houblon

Abrégé

The invention relates to a process for the production of hexahydro-iso-alpha-acids starting from iso-alpha-acids (or tetrahydro-iso-alpha-acids) in which iso-alpha-acids (or tetrahydro- iso-alpha-acids) are mixed with a heterogeneous ruthenium containing catalyst, that catalyzes the hydrogenation from iso-alpha-acids or tetrahydro-iso-alpha-acids to hexahydro- iso-alpha-acids, either in solvent-free conditions, or in the presence of a solvent phase (e.g. carbon dioxide, water, ethanol or another organic solvent, or mixtures thereof), and in the absence or presence of other hop compounds (such as beta-acids). The resulting mixture is then subjected to a temperature at which the iso-alpha-acid (or tetrahydro-iso-alpha-acid) containing reaction medium is sufficiently low in viscosity to allow easy mixing with the heterogeneous ruthenium containing catalyst and held under a hydrogen containing atmosphere (either pure hydrogen gas or mixed with an inert gas) for a reaction time sufficient to effect high conversion of the iso-alpha-acid (or tetrahydro-iso-alpha-acid) reactant into the hexahydro-iso-alpha-acid product. The molar ratio of iso-alpha-acid or tetrahydro-iso-alpha-acid to ruthenium varies between 1:1 and 2000:1. After the hydrogenation process, the heterogeneous ruthenium containing catalyst can be separated from the hexahydro-iso-alpha-acid product phase by centrifugation, filtration, decantation or other liquid-solid separation techniques. The hydrogenation process can be performed batch-wise or alternatively in continuous mode.

Classes IPC  ?

• C12C 3/12 - Produits isomérisés à partir du houblon

Abrégé

The invention relates to a process for the production of iso-alpha-acids starting from hop alpha-acids in which an hop alpha-acid containing feed is contacted with a heterogeneous alkaline earth metal based catalyst, that essentially does not dissolve in the alpha-acid containing feed or in the iso-alpha-acid product phase, either in solvent-free conditions or in the presence of water, carbon dioxide, or an organic solvent or a mixture thereof. The resulting mixture is subjected to a temperature of at least 293 K, preferably under an inert atmosphere, for a time sufficient to effect high conversion of the alpha-acid reactant into the iso-alpha-acid product. The molar ratio of alpha-acid to earth alkaline metal (Mg, Ca, Sr, Ba) varies preferably between 0.2 and 20. After the isomerisation process, the heterogeneous alkaline earth metal based catalyst can be quantitatively separated from the iso-alpha-acid product phase by liquid-solid separation techniques.

Classes IPC  ?

• C12C 3/12 - Produits isomérisés à partir du houblon
• C12C 3/08 - Extraits par solvant obtenus à partir du houblon
• C12C 3/10 - Extraits par solvant obtenus à partir du houblon utilisant du gaz carbonique