摘要:
The invention provides methods for making Maillard flavor compositions in a structured lipid phase using Maillard reactants, e.g., reducing sugars and amino groups. The structured lipid phase comprises from about 0.3% to about 95% aqueous solvent and from about 5% to about 99.7% lipid plus emulsifier. The compositions are useful for enhancing the palatability of foods, dietary supplements, medicaments, and the like.
摘要:
A method for preparing a hop acid mixture having an enantiomeric excess of a (+)-tetrahydro-α-acid is disclosed. In the method, a racemate of a tetrahydro-α-acid is contacted with an amine to form a precipitate having an enantiomeric excess of the (+)-tetrahydro-α-acid. A method for preparing a hop acid is also disclosed. In the method, a racemate of a tetrahydro-α-acid is contacted with an amine to form a precipitate comprising a (+)-tetrahydro-α-acid, and the (+)-tetrahydro-α-acid is isomerized to a hop acid selected from the group consisting of (+)-trans-tetrahydro-iso-α-acids, (−)-cis-tetrahydro-iso-α-acids, and mixtures thereof, and reduced to (+)-trans-hexahydroiso-α-acids and (−)-cis-hexahydroiso-α-acids. An additive for flavoring a malt beverage is also disclosed. The additive includes a bittering agent selected from the group consisting of (+)-trans-tetrahydro-iso-α-acids, (−)-cis-tetrahydro-iso-α-acids, (+)-trans-hexahydroiso-α-acids, (−)-cis-hexahydroiso-α-acids, and mixtures thereof.
摘要:
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.
摘要:
A process for obtaining a minimum concentration of 20.10−6 kg/L of iso-α-acids in a liquid composition, said process being characterized by mixing in water: a natural source of α-acids; and at least one metal oxide.
摘要:
A corn wet-milling process comprises steeping corn kernels in an aqueous liquid, which produces softened corn; milling the softened corn in a first mill, which produces a first milled corn; separating germ from the first milled corn, thereby producing a germ-depleted first milled corn; milling the germ-depleted first milled corn in a second mill, producing a second milled corn; separating the second milled corn into a first starch/protein portion that comprises starch and protein and a first fiber portion that comprises fiber, starch, and protein; milling the first fiber portion in a third mill, which produces a milled fiber material that comprises fiber, starch, and protein; separating at least some of the starch and protein in the milled fiber material from the fiber therein, producing a second fiber portion that comprises fiber and starch and a second starch/protein portion that comprises starch and protein; and contacting the second fiber portion with at least one enzyme to convert at least some of the starch therein to dextrose. The converted material is screened using one or more screens to separate the fiber from the liquor. The liquor can be fermented to ethanol, or refined to dextrose. The fiber can be pressed and dried as an animal feed.
摘要:
The present invention relates to a process for the extraction of soluble dietary fibre from oat and barley grains using enzymatic hydrolysis treatment, wherein the grain is milled and any endosperm depleted fractions thereof being rich in β-glucans are recombined, without further heat treatment, dispersed in water and then subjected to sequential enzymatic treatment with starch degrading enzymes, followed by an optional step of enzyme inactivation by wet heat treatment, and a subsequent step wherein the hydrolysate mixture is spontaneously or centrifugally separated into at least 3 distinct fractions: a first fraction, which comprises the soluble dietary fibre complex, containing more than 20% B-glucan on a dry matter basis, a second aqueous fraction, and a third fraction comprising most of the protein and oil together with the insoluble fibrous material from the milled grain, the invention further relates to applications of use of the 3-glucan derived, as well as a set-up for carrying out the process.
摘要:
An improved flavoring composition and process for brewing malt beverages is disclosed. In one embodiment of the invention, the flavoring composition is formed from a high solids percent, room temperature stable, partially aqueous composition of a potassium salt of iso-α-acids. Such composition may be added to the wort kettle or else used as a post-fermentation additive, preferably after dilution with demineralized water. In another embodiment, the flavoring composition comprises a mixture containing reduced (rho-) iso-α-acids in alkali metal salts form, β-acids and hop oil. This latter composition is useful as a substitute for normal kettle extract, hops or hop pellets, allowing easy preparation of beer that resists formation of unpleasant, “skunky” flavors but has otherwise similar flavor and physical properties.
摘要:
A concentrated single phase aqueous alkaline solution of tetrahydroiso-.alpha.-acids having greater than 10% to about 45% w/w tetrahydroiso-.alpha.-acids is disclosed. A method of hydrogenating and formulating a starting solution of iso-.alpha.-acids to obtain such concentrated solutions of tetrahydroiso-.alpha.-acids is also disclosed.
摘要:
A method of converting alpha acids to hop flavors by exposing the alpha acids to an environment capable of substantially simultaneously isomerizing and reducing the alpha acids to form either THIAA or HHIAA. Another aspect of this invention is directed to a method of reducing hop flavors by exposing an isoalpha acid, a dihydroisoalpha acid or a mixture thereof to conditions suitable to reduce said acids to produce THIAA, HHIAA or a mixture thereof at a pH of about 5 to about 12 in a reaction inert, protic solvent. Yet another aspect of this invention is directed to a method of reducing hop flavors comprising exposing an isoalpha acid, a dihydroisoalpha acid or a mixture thereof to conditions suitable to reduce said acids to produce THIAA, HHIAA or a mixture thereof in a reaction inert, aprotic solvent.
摘要:
A method for the production of isomerized hop preparations comprising admixing whole or powdered hops with a solid or aqueous alkali or alkaline earth metal salt. The invention provides that the resultant admixture is simultaneously subjected to a pressure of at least 2 Kg/cm.sup.2 and at a temperature of at least 80.degree. C. in a closed vessel, thereby to form a hop preparation high in iso-.alpha.-acids and with substantially undegraded hop oils. The closed vessel is preferably an extrusion cooker.
摘要翻译:用于生产异构化啤酒花生产方法,包括将全部或粉末状啤酒花与固体或碱金属或碱土金属盐混合。 本发明提供所得混合物在密闭容器中同时经受至少2Kg / cm 2的压力和至少80℃的温度,从而形成高α-α-酸的啤酒花制剂, 具有基本上未降解的啤酒花油。 密闭容器优选为挤压式炊具。