JP5861003B1 - Method for producing fermented beverage - Google Patents

Abstract

Purine adsorbent addition step of adding purine adsorbent to the pre-fermentation solution, fermentation step of adding yeast to the pre-fermentation solution to which the purine adsorbent was added, and fermentation, yeast-containing fermentation fermented in the step A storage step for storing the liquid in the container, a liquid feeding step for feeding the yeast-containing fermentation broth stored in the step to a filter at a water pressure of 50 kPa to 700 kPa, and a filtration step for filtering the liquid fed. The manufacturing method of fermented drinks containing this. Since the fermented drink obtained by the present invention is one in which purine bodies are stably reduced, it can satisfy consumers as a favorite product.

Description

  The present invention relates to a method for producing a fermented beverage and a fermented beverage produced by the method. In more detail, it is related with the manufacturing method of the fermented drink with which the quantity of the purine bodies was reduced, and the fermented drink manufactured by the manufacturing method.

  As consumer health-consciousness increases, demand for products such as low calorie, low sugar content, and low purine content also increases in malt fermented beverages such as beer and sparkling sake. In particular, purines are metabolized in the liver to become uric acid, and when this uric acid accumulates in the joints, it becomes gout, so consumers have high expectations for malt fermented beverages with low purine content.

  Various methods for reducing purine bodies in malt fermented beverages are known. For example, Patent Document 1 uses an adsorbent composed of activated carbon having an average pore diameter of 1 to 3.5 nm, and malt fermentation in a temperature range of 25 ° C. to 80 ° C. in the saccharification step and before the hop addition. A method for reducing the purine content of a beverage is disclosed. Patent document 2 is disclosing about the method of reducing the purine body of malt fermented drinks in wort or a fermented liquor using the adsorption agent which consists of zeolites. Patent document 3 is disclosing about the method of removing the purine body in wort using the adsorption agent which consists of synthetic resins.

Japanese Patent No. 4018576 JP 2004-290072 A International Publication WO2012 / 008100

  By the way, purine bodies in fermented beverages are mostly released from nucleic acids such as raw materials such as malt and hops, but some are released from yeast nucleic acids by autolyse (autolysis). There is also a possibility to do. For this reason, in the manufacturing process of fermented drinks, the device which does not produce a purine body simultaneously with removing a purine body is also required. For example, a process design that reduces the stress on the yeast by lowering the water pressure at the bottom using a tank with a low height to reduce the stress caused by the water pressure, or by slowly feeding the raw material containing yeast. Is required.

  However, in consideration of the possibility of purine being released from yeast, it is difficult to efficiently produce a malt fermented beverage having a minimal amount of purine when designing a production process that reduces the stress on yeast.

  The subject of this invention is made | formed in view of the said problem, and is providing the fermented drink manufactured by this manufacturing method and the manufacturing method which can manufacture the fermented drink of the minimum amount of purine bodies efficiently.

  As a result of intensive studies by the present inventors, it is possible to remove adsorbed purine bodies even if the purine bodies are released by adding liquid to the pre-fermentation liquid and feeding it under some pressure. In addition, since the time that stress is applied to the yeast is shortened, the release of purine from the yeast is reduced. As a result, the total amount of purine released is suppressed, and the time required for liquid feeding is shortened. As a result, it has been found that a fermented beverage having a minimum amount of purine can be efficiently produced, and the present invention has been completed.

That is, the present invention provides purine adsorbent adding step of adding a purine adsorbent originating酵前liquid fermentation step of fermenting the purine adsorbent adding yeast to the pre-fermentation solution which has been added, to the process The fermented yeast-containing fermented liquid is stored in the container under a pressure of 200 kPa or less at the bottom of the container, and the yeast-containing fermented liquid stored in the process is filtered at a water pressure of 200 kPa to 700 kPa. It is related with the manufacturing method of fermented drinks including the liquid feeding process which carries out liquid feeding to a machine, and the filtration process which filters the liquid sent.

  According to the present invention, a fermented beverage having a minimum amount of purine can be efficiently produced.

  In this specification, “manufacturable efficiently” means that the production equipment (line configuration) according to the production process of the present invention is used, and the production is performed under more relaxed liquid feeding conditions with less stress applied to the pre-fermentation liquid. As long as the production efficiency is good compared to the case where it is performed, it is considered that “the production is efficient”, and whether or not the user intends to exert the effect of the present invention with such production equipment (line configuration). It doesn't matter.

FIG. 1 is a flowchart illustrating a method for producing a fermented beverage according to an embodiment of the present invention.

  The method for producing a fermented beverage of the present invention includes a purine adsorbent addition step of adding a purine adsorbent to the pre-fermentation solution, then a step of adding yeast to ferment, and a specific liquid feeding step after this step. It has a special feature. That is, the method for producing a fermented beverage of the present invention includes, as an example, a purine body adsorbent addition step, a fermentation step of a pre-fermentation solution, a storage step, a liquid feeding step, and a filtration step. In addition to the above step, a purine adsorbent removal step of removing the purine adsorbent adsorbed with the purine adsorbent may be included after the purine adsorbent addition step. Furthermore, after the purine body adsorbent addition step, a blending step of further blending with a fragrance, a sour agent and the like may be included. Hereinafter, the steps included in the manufacturing method will be outlined in order.

<Purine adsorbent addition process>
In the purine adsorbent addition step, the purine adsorbent is added to the pre-fermentation solution.

  “Purine” generally refers to free purine bases, purine nucleosides, purine nucleotides, and polymer nucleic acids. Here, the purine base is a generic name for purine (9H-imidazo [4,5-d] pyrimidine) derivatives, and includes adenine, xanthine, guanine and the like. Purine nucleoside is a general term for glycoside compounds in which a purine base and a sugar reducing group are N-glycosidically bonded, and includes adenosine, inosine, guanosine and the like. Purine nucleotide is a generic name for compounds in which the sugar moiety of purine nucleoside forms an ester with phosphoric acid, and includes adenylic acid, inosinic acid, guanylic acid and the like.

  In the present invention, various existing purine adsorbents can be employed. For example, an adsorbent made of activated carbon may be used, an adsorbent made of zeolite may be used, or an adsorbent made of a synthetic resin may be used. These adsorbents may be used alone or in combination of two or more. The method for adding the adsorbent can be performed according to known conditions. Moreover, the usage-amount of adsorption agent can also be set suitably according to a well-known technique.

  The “pre-fermentation solution” as used in the present invention refers to a solution heated by adding warm water to cereals and / or sugars. The solution after heating removes the husk and the like by filtration, adds hops and the like to boil, removes solids such as coagulated proteins, and is subjected to a fermentation process described later. Prior to the fermentation step, it may be cooled to a temperature suitable for fermentation with yeast. In the present specification, the solutions from the start of heating of cereals and / or sugars to the fermentation process are collectively referred to as “pre-fermentation solution”. As cereals, raw materials such as wheat, rice, soybeans, peas and corn can be used. Of these, wheat is preferred.

  The barley used as a raw material for the “pre-fermentation liquid” refers to a processed product derived from barley used as a raw material for ordinary beer and sparkling liquor. For example, malt, barley, refined barley, barley extract, barley flakes, Examples include wheat, pigeons, rye, and oats. Among these, malt can be used suitably and the malt ratio of the pre-fermentation liquid can be, for example, less than 50% and less than 25%. In the present specification, “%” indicating the malt ratio means “% by weight”.

  The hop used as a raw material for the “pre-fermentation liquid” refers to a creeping perennial plant of the Asaaceae family, which has the scientific name: Humulus lupulus. When using hops, normal pellet hops, powder hops, and hop extracts used in the production of beer and the like can be appropriately selected and used according to the desired flavor. Moreover, you may use hop processed goods, such as an isolation hop and a reduction | restoration hop. These are included in the hops in the present invention.

  As the water used for the “pre-fermentation solution”, tap water and / or treated tap water can be used. As the tap water treated water, one obtained by subjecting tap water to one or more treatments such as coagulation precipitation, filtration, membrane, desalting, mineral content adjustment, trihalomethane removal and the like can be used. The tap water and / or tap water treated water is suitable for producing a malt fermented beverage from the viewpoint of stably securing an abundant amount of water.

  By the above method, a pre-fermentation solution to which a purine adsorbent is added is obtained. In addition, the purine content in the liquid before addition of the purine adsorbent is not particularly set, for example, about 0.1 to 10 mg / 100 mL, and after the purine adsorbent is added to the liquid Purine body content will be reduced rather than the above.

<Purine adsorbent removal process>
In the purine adsorbent removal step, there is no particular limitation as long as the purine adsorbent on which the purine adsorbs can be removed from the pre-fermentation solution containing the purine adsorbent that has undergone the purine adsorbent addition step. Preferably, the removal is performed by filtration, and generally known conditions may be used as conditions for the filtration. The amount of the purine body after removal is not set unconditionally depending on the type and amount of the purine body adsorbent used, but is reduced according to the performance of the purine body adsorbent. Specifically, it is about 1/10 amount before addition, for example, preferably less than 0.1 mg / 100 mL, more preferably less than 0.05 mg / 100 mL, and still more preferably less than 0.03 mg / 100 mL.

<Fermentation process>
In the fermentation process, yeast is added to the pre-fermentation solution obtained from the process and fermented. Although the kind of yeast is not specifically limited, As yeast used by this invention, it is a beer yeast and may be a top fermentation yeast or a bottom fermentation yeast. In addition, generally known conditions may be used for yeast fermentation. After the fermentation process, the process proceeds to a storage process described later. The yeast used in the present invention can be freely selected in consideration of the type of fermented beverage to be produced, the intended flavor and fermentation conditions. For example, commercially available brewer's yeast, such as Weihenstephan-34 strain, can be used. The yeast may be added to the pre-fermentation solution as a yeast suspension, or a slurry obtained by concentrating the yeast by centrifugation or sedimentation may be added to the pre-fermentation solution. Moreover, you may add what removed the supernatant completely after centrifugation. Although the addition amount to the pre-fermentation liquid of yeast can be set suitably, it is about 5 * 10 < ⁶ > cells / mL-1 * 10 < ⁸ > cells / mL, for example.

  As an example of fermentation conditions, for example, in the case of a beer-taste beverage, fermentation may be performed at 8 to 25 ° C., which is a fermentation temperature of normal beer or sparkling liquor, for 1 week to 10 days. There are no particular restrictions on the temperature rise, temperature drop, and pressurization during fermentation. By this process, a yeast-containing fermentation broth obtained by fermenting yeast is obtained.

<Storage process>
Although there will be no restriction | limiting in particular if a yeast containing fermentation broth can be stored in a storage process, It is preferable to store in a container on the conditions that a pressure of 200 kPa or less is applied to the bottom part of a container.

In the storage step, it is sufficient to store the yeast-containing fermentation broth in a container (such as a storage tank). When the yeast-containing fermentation broth is stored in the container, water pressure acts, and a pressure corresponding to the water depth of the stored yeast-containing fermentation liquid is generated at the bottom of the container. Specifically, the density ρkg / m ³ of the yeast-containing fermentation broth and the water depth pressure at the water depth Tm are calculated by (ρ × 9.8 × T × 10 ⁻³ ) (kPa). The pressure of the water depth at a density of 1,008 kg / m ³ and a water depth of 1 m is 9.88 kPa. In this storage step, the pressure is preferably 200 kPa or less, more preferably 180 kPa or less, and still more preferably 160 kPa or less.

  As mentioned above, purine bodies in fermented beverages are mostly released from cereals such as malt, which is a raw material, and hop nucleic acids, but are released from yeast nucleic acids by autolyse (autolysis). Some have pointed out the possibility. For this reason, it is preferable that purines are not released from these in the steps after the “purine adsorbent addition step” described above. Therefore, in the “storage step”, the stress applied to the yeast is reduced so that the purine bodies are not released after the “purine body adsorbent addition step”.

  In addition, the temperature and time of the storage process are not particularly limited. Moreover, the usage-amount of the raw material to be used can also be set suitably according to the technical common sense of those skilled in the art. For example, since the height of the container can be increased within a range where a water pressure of 200 kPa or less is applied to the bottom of the container, the production amount per time of the yeast-containing fermentation broth can be increased, and the production can be efficiently performed. It becomes possible. Note that the water pressure at the bottom is determined based on whether or not the water pressure calculated from the depth of the yeast-containing fermentation broth in the container is within a predetermined pressure.

  The purine content in the yeast-containing fermentation broth in the storage step is not particularly set because it varies depending on storage conditions, raw materials used, and equipment, but is, for example, about 0.1 to 1 mg / 100 mL.

<Liquid feeding process>
In the present invention, the yeast-containing fermentation broth is fed to the filtration step as follows (liquid feeding step is performed). Specifically, the yeast-containing fermentation broth is fed to a filter at a specific water pressure through a pipe. The material, overall length, thickness, and shape of the piping are not particularly limited, and can be appropriately designed according to a known technique.

  The water pressure in the liquid feeding step may be 50 kPa or more, preferably 100 kPa or more, more preferably 150 kPa or more, and further preferably 200 kPa or more. Moreover, it may be 700 kPa or less, preferably 600 kPa or less, more preferably 500 kPa or less. If it is in the said range, you may liquid-feed with the water pressure in the range by any combination. For example, the water pressure in the present invention is preferably 50 kPa to 700 kPa, more preferably 100 to 600 kPa, still more preferably 150 to 500 kPa, and even more preferably 200 to 500 kPa. Moreover, the said water pressure means the water pressure in piping, and it can measure by installing a pressure gauge in piping. A pressure gauge in particular is not restrict | limited, A well-known thing can be used. The pipe can be equipped with a liquid feed pump, a flow rate adjustment valve, a flow meter, a differential pressure adjustment valve, and a control device for these. Can be controlled.

As described above, it is very unlikely that a purine body is newly generated from yeast in the yeast-containing fermentation broth by feeding at a specific water pressure. Further, even in the previous stage, the possibility of purine bodies being released in the liquid feeding process is further reduced by passing through a storage process in which the stress on the yeast is small. In the present invention, purine bodies from cereals such as malt and hop nucleic acids that are supposed to release most of the purine bodies in fermented beverages are added in advance in the step of adding the purine body adsorbent described above. Since the liquid is removed, the liquid can be fed at a relatively high pressure, which enables efficient production. In addition, even if the liquid after fermentation is fed under the above pressure, the mechanism by which the formation of purines can be suppressed is unknown, but because of the high speed, the possibility of yeasts contacting each other is reduced, and autolyse (self-digestion) It is presumed that the effect is further exerted by not applying much stress to the yeast in the storage step. However, these assumptions do not limit the present invention. In addition, if it is the said water pressure in the one part location in a liquid feeding process, it will be considered that this invention was used.
Moreover, it is preferable that the maximum value (P1) of the container bottom part pressure of a storage process and the maximum value (P2) of the water pressure in the piping for liquid feeding to a filtration process have the following relationship.
Preferably (P1) <(P2)
More preferably (P1) <(P2) -100 kPa
More preferably (P1) <(P2) −140 kPa

<Filtration process>
In the filtration step, there is no particular limitation as long as the yeast, turbidity particles, and the like can be removed from the yeast-containing fermentation broth sent through the liquid feeding step. Conditions generally used for filtration may be used.

  Since the amount of purine bodies in the filtrate does not increase during the liquid feeding process, it is not set unconditionally depending on the type and amount of the purine body adsorbent used, but was reduced according to the performance of the purine body adsorbent. It has become a thing. Specifically, it is about 1/10 amount before addition, for example, preferably less than 1 mg / 100 mL, more preferably less than 0.5 mg / 100 mL, and further preferably less than 0.3 mg / 100 mL. In the present invention, in addition to performing the above-described steps, according to the desired purpose, flavoring ingredients, etc. may be adjusted by blending creative ingredients, etc. You can also

<Mixing process>
In the method for producing a fermented beverage according to the present invention, after the purine adsorbent addition step, in addition to the pre-fermentation solution and / or the yeast-containing fermentation solution, a flavoring agent, a sour agent, a sweetener, a dietary fiber, a bitter agent, One or two or more selected from the group consisting of a dye, a stabilizer, carbon dioxide, water, alcohol for brewing, and spirits can be contained and prepared. These compounding quantities are not specifically limited, According to the technical common sense of those skilled in the art, it can set suitably.

(Fragrance)
In this specification, a fragrance | flavor means the additive added in order to provide or enhance a fragrance in the process of manufacture or processing of foodstuffs, and its formulation. In this invention, you may use any fragrance | flavor recognized to add to foodstuffs, and can use it as needed in the range which does not inhibit the effect of this invention.

(Acidulant)
In the present specification, the sour agent refers to food additives and preparations thereof used for improving or improving the taste by imparting or enhancing sourness in the production or processing of food. In the present invention, any acidulant approved to be added to foods may be used, and can be used as necessary within the range not impeding the effects of the present invention.

(sweetener)
In this specification, a sweetener means the additive added in order to provide sweet taste to food-drinks, and its formulation. In the present invention, any sweetener that is permitted to be added to foods may be used, and can be used as necessary as long as the effects of the present invention are not hindered. Both high-intensity sweeteners such as natural sweeteners and synthetic sweeteners can be used, for example, peptide-based sweeteners such as neotame, aritem, etc .; glycoside sweeteners such as stevia (stevia extract and stevia Stevia derivatives such as enzyme-treated stevia with enzyme treatment and glucose added, and rebaudioside A having the highest sweetness among the sweet components of stevia), licorice extract, etc .; sucrose derivatives such as sucralose; Synthetic sweeteners such as acesulfame K, saccharin and the like can be mentioned. Moreover, you may use the sweetener used for this invention in the combination of 1 or more.

(Dietary fiber)
In this specification, dietary fiber refers to dietary fiber that dissolves in water and has the property of not being assimilated or not assimilated by yeast. In the present invention, any dietary fiber that is permitted to be added to food may be used, and can be used as necessary as long as the effects of the present invention are not hindered. Examples thereof include indigestible dextrin, polydextrose, galactomannan, gua bean fiber, pectin, glucomannan, sodium alginate, water-soluble corn fiber, and hydrolysates thereof. Commercially available products of various grades containing these as the main component, preferably 80% or more, more preferably 90% or more in terms of solid content, can be purchased and used. As a form, a powder or a liquid thing can be used. Components other than the main component include assimilable sugars and degradation products of the main component. As the water-soluble dietary fiber, indigestible dextrin or polydextrose is most preferable.

  Indigestible dextrin is obtained by hydrolyzing starch that has been heat-treated with amylase, separating the indigestible components from the undegraded product, and desalting and decoloring. Commercially indigestible dextrins such as Pine Fiber C (manufactured by Matsutani Chemical Co., Ltd.) containing the indigestible dextrin in a solid content weight of 80% or more, preferably 90% or more can be used. The amount of water-soluble dietary fiber added, such as indigestible dextrin, can be set as appropriate based on the sense of health required for the final product and the rich design. The properties of the water-soluble dietary fiber are not particularly limited, and may be in the form of powder or liquid sugar. The water-soluble dietary fiber may be added before or after the fermentation, but if there is a concern about poor fermentation due to the addition of the water-soluble dietary fiber, a highly pure water-soluble dietary fiber is added after the fermentation. It is preferable.

(Bitter)
In this specification, a bittering agent means the additive added in order to provide bitterness to food-drinks, and its formulation. In the present invention, any bitterness that is permitted to be added to foods may be used, and can be used as necessary within a range that does not hinder the effects of the present invention. The bitterness used as a raw material of normal beer or happoshu can be used, and examples thereof include isohumulones and reduced isohumulones.

(Dye)
In this specification, a pigment | dye means the additive added in order to provide color to food-drinks, and its formulation. In the present invention, any pigment that is recognized to be added to foods may be used, and can be used as necessary within a range that does not hinder the effects of the present invention. Especially, since it adds to a drink, a water-soluble pigment | dye and a highly hydrophilic pigment | dye can be used suitably. Moreover, the pigment | dye which succeeds in order to obtain a beer-like color tone can be used suitably. Of these, caramel dyes having these conditions can be suitably used.

(Stabilizer)
In this specification, a stabilizer refers to an additive added mainly for the purpose of stabilizing foods and drinks and a preparation thereof. In the present invention, any stabilizer that is recognized to be added to food may be used, and can be used as necessary within a range that does not hinder the effects of the present invention. The foam stabilizer used as a raw material of normal beer or happoshu can be used, and examples thereof include saponin and kirayanin. Moreover, the dispersion stabilizer used as a raw material of a normal drink can be used, for example, carrageenan, xanthan gum, etc. are mentioned.

(carbon dioxide gas)
In the present invention, carbon dioxide gas is originally contained in a yeast-containing fermentation broth by fermentation with yeast or the like, or carbon dioxide is forcibly contained in any stage of the fermented beverage production process. Also good. The density | concentration of the carbon dioxide gas (namely, carbon dioxide) in the fermented drink of this invention is not specifically limited, Generally, what is necessary is just the density | concentration in the drink drunk as a carbonated drink, Typically, about 200-12000 ppm, More preferably, it is about 2500-7500 ppm. As a method for forcibly producing a liquid containing carbon dioxide gas, methods generally known to those skilled in the art can be used. For example, although not limited thereto, carbon dioxide can be dissolved in a liquid under pressure. It is also possible to mix the liquid and carbon dioxide in the pipe using a mixer such as a carbonator from Zuchenhagen, or carbon dioxide by spraying the liquid into a tank filled with carbon dioxide. May be absorbed in a liquid, or a drinkable liquid and carbonated water may be mixed to form a carbonated drink.

(water)
As water used for preparation, the same water as that used in the pre-fermentation solution described above can be used.

(Brewing alcohol)
In this specification, alcohol for brewing means ethanol used for food and drink. In the present invention, any alcohol for brewing that is permitted to be added to food may be used, and it can be used as necessary within the range not impeding the effects of the present invention.

(Spirits)
In this specification, spirits are cereals such as wheat, rice, buckwheat and other cereals such as sweet potato, potato, cassava, saccharified using malt or, if necessary, an enzyme agent, and fermented using yeast. Further, it refers to alcoholic beverages obtained by further distillation, and can be used as necessary within the range not impeding the effects of the present invention. What uses wheat for some raw materials can be used conveniently. The barley used as a raw material for the wheat spirits includes malt, wheat straw, barley, refined barley, barley extract, barley flakes, wheat, pigeons, rye, and oats. Among these, wheat spirits using wheat as wheat are preferable.

  In the production of spirits, production conditions such as the distillation method and the number of distillations are not particularly limited. When using wheat spirits, what distilled the alcohol containing material with the continuous distillation machine can be used. Moreover, what made alcohol content 36% or more can be used conveniently.

  Moreover, in this invention, the obtained fermented drink can be attached | subjected to normal processes, such as a container packing and a sterilization process. When it is set as a beverage in a container, it can be filled in a sealed container such as a bottle, a can, a barrel, or a PET bottle as in the case of a normal fermented beverage.

  Thus, the production method of the present invention makes it possible to efficiently produce a fermented beverage having a minimum amount of purine bodies. The purine content of the obtained fermented beverage is preferably less than 1 mg / 100 mL, more preferably less than 0.5 mg / 100 mL, still more preferably less than 0.1 mg / 100 mL, still more preferably less than 0.05 mg / 100 mL, more More preferably, it is less than 0.005 mg / 100 mL.

  The present invention also provides a fermented beverage produced by the production method of the present invention.

(Fermented beverage)
The “fermented beverage” provided by the present invention refers to a beverage that has been fermented using cereals as part of the raw material, and preferably an alcohol-containing beverage produced using wheat, especially malt as part of the raw material. Say. Specific examples include Happoshu, low-alcohol malt fermented beverages (for example, malt fermented beverages with an alcohol content of less than 1%), etc. In terms of the classification of alcoholic beverages in Japan, Happoshu, liqueurs, spirits It is a fermented malt beverage classified as a kind.

  In this case, the alcohol content of the fermented beverage provided by the present invention is not particularly limited, but is preferably 1 to 15% (v / v). Especially, it is desirable that it is the range of 1-8% (v / v) the alcohol density | concentration which consumers prefer as malt fermented drinks, such as beer and sparkling liquor.

  In the “fermented beverage” obtained according to the present invention, the content of “purine” is preferably less than 1 mg / 100 mL, more preferably less than 0.5 mg / 100 mL, still more preferably less than 0.1 mg / 100 mL, still more preferably. Is less than 0.05 mg / 100 mL, more preferably less than 0.005 mg / 100 mL.

  In the present specification, the measurement of the content of “purine bodies” in the fermented beverage and the liquid in each step is not particularly limited. For example, the method of K. Kaneko et al. (Nucleosides, Nucleotides and Nucleic Acids, 2014, 33: 439-444).

  In addition, in the “fermented beverage” obtained by the present invention, off-flavor derived from wheat can be suppressed while reducing carbohydrates by increasing the malt ratio in the raw material. Therefore, from the above viewpoint, it is preferable that the malt ratio is less than 50%, particularly the malt ratio is less than 25% for the pre-fermentation solution. Although the malt use ratio is also called a malt ratio, it means the ratio of the weight of malt in the sugar raw materials such as malt, rice, corn, cucumber, potato, starch, wheat other than malt, and sugars. For example, beer with a malt ratio of 100% is usually called all-malt beer.

(Total amount of extract)
Moreover, in the “fermented drink” obtained by the present invention, the total amount of the extract is preferably 0.4% by weight or less. In the present invention, the extract component refers to a non-volatile component that increases and decreases from raw materials such as malt, rice, corn, cucumber, potato, starch, wheat other than malt, and sugars. Strictly speaking, it may be increased or decreased by other components such as hops and fragrances. The method for adjusting the total amount of the extract is not particularly limited, and examples thereof include a method for adjusting the amount of a raw material that produces an extract, such as malt used as a raw material, and a method for diluting an intermediate product. The “total amount of extract” in the present specification refers to the extract in the Japanese liquor tax law when the alcohol content of the beverage is 0.005% or more, that is, the nonvolatile content contained in the original capacity of 100 cubic centimeters at a temperature of 15 degrees. The number of grams of sex ingredient.

  EXAMPLES The present invention will be specifically described below with reference to examples, but the present invention is not limited to these examples.

Example 1
80t of water was added to 20t of European Nijo barley malt ground by a method well known to those skilled in the art, and saccharification was performed at 65 ° C for 100 minutes. Here, 2% by mass of activated carbon (“Shirakaba”, manufactured by Takeda Pharmaceutical Company Limited) was added per wort and contacted for 60 minutes, followed by wort filtration (purine content of the wort after filtration 0.79 mg / 100 mL) . To the obtained wort, a commercially available syrup (MR750: made by Showa Sangyo Co., Ltd.) containing maltose with a purity of about 75% was added to the malt ratio, and the mixture was hydrated and stirred to obtain about 100 kg of hops. Added and boiled for 90 minutes. After cooling to 10 ° C., add about 300 kg of beer bottom brewing yeast (density 1,008 kg / m ³ ), ferment in a 16 m deep tank (tank bottom pressure 158 kPa) for about 2 weeks, and then leave it for half a day. And a yeast-containing fermentation broth (purine body content of yeast-containing fermentation broth 0.77 mg / 100 mL).

  The obtained yeast-containing fermentation broth was sent to a filter at a water pressure of 500 kPa through a pipe and filtered (purine content in the filtrate: 0.77 mg / 100 mL). At this time, the extract content is adjusted to 0.4% by weight, and finally adjusted with brewed alcohol, fragrance, acidulant, carbon dioxide, dietary fiber, etc. did.

  The purine content of the obtained canned beverage was 0.0035 mg / 100 mL as an actual measurement, and when opened and drunk, a malt fermented beverage with a beer-like flavor was obtained.

(Example 2)
The yeast-containing fermentation broth obtained in the same manner as in Example 1 (purine body content of 0.77 mg / 100 mL of the yeast-containing fermentation broth) was sent to a filter at a water pressure of 300 kPa through a pipe and filtered (filtered). Purine content of liquid 0.77 mg / 100 mL). At this time, the extract content was adjusted to 0.4% by weight, and the flavor was adjusted with brewed alcohol, fragrance, acidulant, carbon dioxide, dietary fiber, and the like.

  Finally, barley spirits were mixed at 4: 1000, and then filtered. The obtained malt fermented beverage was aseptically filled into a can to obtain a canned beverage.

  The purine content of the obtained canned beverage was 0.0031 mg / 100 mL as an actual measurement value. When opened and drunk, a malt fermented beverage with a beer-like flavor was obtained.

  According to the present invention, it has been clarified that a fermented beverage with reduced purine bodies can be stably produced.

  Since the fermented drink obtained by the present invention is one in which purine bodies are stably reduced, it can satisfy consumers as a favorite product.

S1 Purine body adsorbent addition process S2 Purine body adsorbent removal process S3 Fermentation process S4 Storage process S5 Liquid feeding process S6 Preparation process S7 Filtration process

Claims (10)

Purine adsorbent addition step of adding purine adsorbent to the pre-fermentation solution, fermentation step of adding yeast to the pre-fermentation solution to which the purine adsorbent was added, and fermentation, yeast-containing fermentation fermented in the step A storage step for storing the liquid in the container under a condition where a pressure of 200 kPa or less is applied to the bottom of the container, and a liquid transfer for feeding the yeast-containing fermentation liquid stored in the step to a filter at a water pressure of 200 kPa to 700 kPa. The manufacturing method of a fermented drink including the filtration process of filtering a process and the said liquid fed.   The production method according to claim 1, wherein the pre-fermentation liquid contains an extract of cereal, the cereal contains malt, and the malt ratio of the pre-fermentation liquid is less than 50%.   The production method according to claim 1 or 2, wherein the pre-fermentation liquid contains an extract of cereal, the cereal contains malt, and the malt ratio of the pre-fermentation liquid is less than 25%.   The manufacturing method as described in any one of Claims 1-3 whose total amount of the extract of fermented drinks is 0.4 weight% or less.   Furthermore, the purine body adsorbent removal process of removing the purine body adsorbent by which the purine body was adsorbed is included after the purine body adsorbent addition process, The manufacturing method as described in any one of Claims 1-4. The maximum value of the container bottom pressure storing step and (P1), the maximum value of the water pressure in the pipe for feeding the liquid in the liquid feeding step and (P2), but in the following relationship, one of the claims 1 to 5 one The production method according to item.
(P1) <(P2) After the purine body adsorbent addition step, it is further added to the pre-fermentation liquid and / or the yeast-containing fermentation liquid, and further flavoring, acidulant, sweetener, dietary fiber, bitter, pigment, stabilizer, carbon dioxide, water, and brewing. The manufacturing method as described in any one of Claims 1-6 including the compounding process which contains one or two or more chosen from the group which consists of alcohol and spirits and mixes. Water, including tap water and / or tap water treated water production method according to any one of claims 1-7. The manufacturing method as described in any one of Claims 1-8 whose content of the purine body of fermented drinks is less than 1 mg / 100mL. The production method according to any one of claims 1 to 9 , wherein the alcohol content of the fermented beverage is 1 to 15%.

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