WO2007010979A1 - 液体麹の製造方法 - Google Patents
液体麹の製造方法 Download PDFInfo
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- WO2007010979A1 WO2007010979A1 PCT/JP2006/314372 JP2006314372W WO2007010979A1 WO 2007010979 A1 WO2007010979 A1 WO 2007010979A1 JP 2006314372 W JP2006314372 W JP 2006314372W WO 2007010979 A1 WO2007010979 A1 WO 2007010979A1
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- Prior art keywords
- liquid
- producing
- enzyme
- koji
- liquid medium
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N1/00—Microorganisms, e.g. protozoa; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor
- C12N1/14—Fungi; Culture media therefor
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L27/00—Spices; Flavouring agents or condiments; Artificial sweetening agents; Table salts; Dietetic salt substitutes; Preparation or treatment thereof
- A23L27/50—Soya sauce
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L7/00—Cereal-derived products; Malt products; Preparation or treatment thereof
- A23L7/10—Cereal-derived products
- A23L7/104—Fermentation of farinaceous cereal or cereal material; Addition of enzymes or microorganisms
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12F—RECOVERY OF BY-PRODUCTS OF FERMENTED SOLUTIONS; DENATURED ALCOHOL; PREPARATION THEREOF
- C12F3/00—Recovery of by-products
- C12F3/06—Recovery of by-products from beer and wine
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N9/00—Enzymes; Proenzymes; Compositions thereof; Processes for preparing, activating, inhibiting, separating or purifying enzymes
- C12N9/14—Hydrolases (3)
- C12N9/24—Hydrolases (3) acting on glycosyl compounds (3.2)
- C12N9/2402—Hydrolases (3) acting on glycosyl compounds (3.2) hydrolysing O- and S- glycosyl compounds (3.2.1)
- C12N9/2405—Glucanases
- C12N9/2408—Glucanases acting on alpha -1,4-glucosidic bonds
- C12N9/2411—Amylases
- C12N9/2414—Alpha-amylase (3.2.1.1.)
- C12N9/2417—Alpha-amylase (3.2.1.1.) from microbiological source
- C12N9/242—Fungal source
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N9/00—Enzymes; Proenzymes; Compositions thereof; Processes for preparing, activating, inhibiting, separating or purifying enzymes
- C12N9/14—Hydrolases (3)
- C12N9/24—Hydrolases (3) acting on glycosyl compounds (3.2)
- C12N9/2402—Hydrolases (3) acting on glycosyl compounds (3.2) hydrolysing O- and S- glycosyl compounds (3.2.1)
- C12N9/2405—Glucanases
- C12N9/2434—Glucanases acting on beta-1,4-glucosidic bonds
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N9/00—Enzymes; Proenzymes; Compositions thereof; Processes for preparing, activating, inhibiting, separating or purifying enzymes
- C12N9/14—Hydrolases (3)
- C12N9/48—Hydrolases (3) acting on peptide bonds (3.4)
- C12N9/50—Proteinases, e.g. Endopeptidases (3.4.21-3.4.25)
- C12N9/58—Proteinases, e.g. Endopeptidases (3.4.21-3.4.25) derived from fungi
Definitions
- the present invention relates to a method for producing a liquid koji, and more particularly to a method for producing a liquid koji having enhanced enzyme activity.
- the koji used in the production of alcoholic beverages, etc. is a solid koji that is inoculated with spores of filamentous fungi on the raw material after cooking, etc., and a liquid medium by adding the raw materials and other nutrients to water.
- a liquid koji that is prepared and inoculated with spore of koji mold or precultured mycelia.
- solid koji produced by a solid culture method is widely used.
- This solid culture method includes Aspergillus kawachii, Aspergillus awamori, Aspergillus niger, Aspergillus oryzae, Aspergillus solus, etc.
- solid soot such as Aspergillus kawachii is widely used! /.
- the solid culture method is a culture system in which raw materials and koji molds are dispersed non-uniformly, so it is difficult to make uniform factors such as temperature, water content, and various nutritional components, and the culture control is very complicated.
- it is often produced in an open state, and in this case, it is necessary to pay attention in terms of quality control such as contamination by various bacteria. Therefore, it can be said that the method is not suitable for large-scale manufacturing.
- the liquid culture method is easy to control culture and quality control, and is a culture form suitable for efficient production.
- a culture obtained by liquid culture of Aspergillus oryzae is actually used as shochu because, for example, sufficient enzyme activity required for shochu brewing cannot be obtained.
- the culture obtained by the liquid culture method is obtained by the liquid culture method.
- the cultured product itself hereinafter sometimes referred to as “liquid koji”
- it may be a culture solution, bacterial cells, a concentrate thereof, or a dried product thereof.
- Patent Document 1 As a method for improving the darcoamylase activity of Aspergillus oryzae, a method of cultivating Aspergillus oryzae while stressing the growth of mycelia (see Patent Document 1), or a method of adding calorie to roasted cereals to an Aspergillus culture medium 2) has been reported.
- the method disclosed in Patent Document 1 enhances the enzyme activity by culturing in a porous immobilization agent or in a entrapping immobilization agent having voids to express a new gene glaB that encodes dalcamylase. Or special culture equipment is necessary and not practical.
- the method disclosed in Patent Document 2 is a method for culturing koji molds in a liquid medium using baked cereals as at least a part of the raw material, and adds a new manufacturing process of roasting cereals. .
- the present inventors have proposed an invention relating to a method for culturing koji mold using a liquid medium containing a saccharide that is hardly degradable for koji mold (see Patent Document 3).
- a saccharide degradation-related enzyme such as dalcamylase
- Non-Patent Document 7 With regard to acid-resistant a amylase, molecular biological analysis has recently been started in detail (see Non-Patent Document 7). According to it, white mold has two types of amylase genes with different properties: non-acid-resistant amylase and acid-resistant a-amylase. However, the expression pattern is very different. In liquid culture, non-acid-resistant ⁇ -amylase is produced sufficiently, but acid-resistant ⁇ -amylase, which is a key enzyme for shochu brewing, is hardly produced. It has been reported.
- acid-resistant ⁇ -amylase is basically an enzyme that is not produced in liquid culture, and no liquid koji with high activity of acid-resistant ⁇ -amylase has been developed so far.
- Patent Document 1 Japanese Patent Laid-Open No. 11 225746
- Patent Document 2 Japanese Patent Laid-Open No. 2001-321154
- Patent Document 3 Japanese Patent Laid-Open No. 2003-265165
- Non-patent literature l Iwashita K. et al: Biosci. Biotechnol. Bioche., 62, 1938-1946 (1998)
- Non-patent literature 2 Yuichi Yamane et al .: Journal of the Japan Brewing Association., 99, 84-92 (2004)
- Non-Patent Document 3 Hata Y. et. A1 .: J. Ferment. Bioeng., 84, 532-537 (1997)
- Non-Patent Document 4 Hata Y. et. Al .: Gene., 207, 127-134 (1998)
- Non-Patent Document 5 Ishida H. et. Al .: J. Ferment. Bioeng., 86, 301-307 (1998)
- Non-Patent Document 6 Ishida H. et. Al: Curr. Genet., 37, 373-379 (2000)
- Non-Patent Document 7 Nagamine K. et.al .: Biosci. Biotechnol. Biochem., 67, 2194-2202 (20
- Non-Patent Document 8 Sudo S. et al: J. Ferment. Bioeng., 76, 105-110 (1993)
- Non-Patent Document 9 Sudo S. et al: J. Ferment. Bioeng., 77, 483-489 (1994)
- Non-Patent Document 10 Shigetoshi Sudo et al .: Journal of the Japan Brewing Association, 89, 768-774 (1994)
- the present inventors have cultivated koji molds in a liquid medium containing, as a culture raw material, cereals whose entire or part of the surface is covered with at least husk, thereby producing shochus such as darcoamylase and acid-resistant ⁇ -amylase.
- shochus such as darcoamylase and acid-resistant ⁇ -amylase.
- An object of the present invention is to develop a method for enhancing amylolytic enzymes such as darcoamylase and acid-resistant a amylase, and other enzyme activities in liquid koji, In particular, it is to provide a method for producing a liquid koji having a high enzyme activity by optimizing the composition of the liquid medium.
- the present inventors have aimed at further high enzyme production in liquid koji, and as a result, contained a specific nitrogen source in the liquid medium. Furthermore, by coexisting sulfate and phosphate, the productivity of starch-degrading enzyme dalcore mirase, cellulose-degrading enzyme cellulase, and proteolytic enzyme acid carboxypeptidase is improved. As a result, the present invention has been completed.
- the present invention according to claim 1 uses cereals whose whole or part of the surface is at least covered with husks as a culture raw material, and a white medium and a Z or black koji mold in a liquid medium containing a nitrogen source.
- husks as a culture raw material
- a white medium and a Z or black koji mold in a liquid medium containing a nitrogen source.
- the present invention according to claim 2 is the method for producing a liquid koji having enhanced enzyme activity according to claim 1, wherein the nitrogen source is nitrate.
- the present invention according to claim 3 is characterized in that the nitrogen source is at least one of yeast cells or processed products thereof, cereal husks, and cereal straws, or a mixture of these with nitrate.
- the present invention according to claim 4 is the method for producing a liquid koji having enhanced enzyme activity according to claim 1, which contains liquid medium strength nitrate at a concentration of 0.05 to 2.0% (wZvol).
- the present invention according to claim 5 is the method for producing a liquid koji with enhanced enzyme activity according to claim 2, wherein the liquid medium further contains a phosphate.
- the present invention according to claim 6 is the method for producing a liquid koji with enhanced enzyme activity according to claim 5, wherein the liquid medium contains phosphate at a concentration of 0.05 to L 0% (wZvol). Is the method.
- the present invention according to claim 7 is the method for producing a liquid koji having enhanced enzyme activity according to claim 5, wherein the liquid medium further contains a sulfate.
- the present invention according to claim 8 is the method for producing a liquid koji with enhanced enzyme activity according to claim 7, which contains liquid medium strength sulfate at a concentration of 0.01 to 0.5% (wZvol). .
- the enzyme activity is enhanced according to claim 1, wherein the enzyme is one or more selected from amylolytic enzyme, cellulolytic enzyme and proteolytic enzyme power. This is a method for producing a liquid koji.
- the present invention according to claim 10 is characterized in that the cereal is rice, wheat, barley, buckwheat, hinoki, potato, millet, corn or corn, wherein the enzyme activity is enhanced. This is a method for producing a liquid koji.
- the present invention according to claim 11 is a liquid bottle obtained by the method according to claim 1, which is a deviation of claim 1 to LO.
- the present invention according to claim 12 is a method for producing an enzyme preparation, wherein the liquid koji according to claim 11 is used.
- the present invention according to claim 13 is an enzyme preparation obtained by the method according to claim 12.
- the present invention according to claim 14 is a liquid medium containing a cereal in which all or a part of the surface as a culture raw material is covered with at least husks, and a nitrogen source.
- An enzyme production method characterized by culturing and producing an enzyme.
- the present invention according to claim 15 is the enzyme production method according to claim 14, characterized in that the nitrogen source is nitrate.
- the nitrogen source is a yeast cell or a processed product thereof, cereal husk, cereal 15.
- the present invention according to claim 17 is the method for producing an enzyme according to claim 14, comprising a liquid medium strength nitrate at a concentration of 0.05 to 2.0% (wZvol).
- the present invention according to claim 18 is the enzyme production method according to claim 15, wherein the liquid medium further contains a phosphate.
- the present invention according to claim 19 is the enzyme production method according to claim 18, wherein the liquid medium contains phosphate at a concentration of 0.05 to L 0% (wZvol).
- the present invention according to claim 20 is the enzyme production method according to claim 18, wherein the liquid medium further contains a sulfate.
- the present invention according to claim 21 is the method for producing an enzyme according to claim 20, wherein the liquid medium contains sulfate in a concentration of 0.01 to 0.5% (wZvol).
- the present invention according to claim 22 is the method for producing an enzyme according to claim 14, wherein the enzyme is one or more selected from starch degrading enzyme, cellulose degrading enzyme and proteolytic enzyme power.
- the present invention according to claim 23 is the method for producing an enzyme according to claim 14, characterized in that the cereal as a raw material is rice, wheat, barley, buckwheat, shrimp, ah, millet, sorghum or corn. is there.
- a specific organic substance and Z or an inorganic substance are added as a nitrogen source to a liquid medium using cereals whose whole or part of the surface is at least covered with husk as a culture raw material, and further sulfated.
- Cellulose degrading enzyme and proteolytic enzyme that can not only significantly improve the productivity of starch degrading enzyme in liquid koji by culturing koji mold in the liquid medium with the addition of phosphate and phosphate.
- Highly produced liquid dredgers can be produced.
- the productivity of all enzymes produced by Aspergillus is considered to increase.
- fermented foods and drinks such as shochu are produced using the liquid koji produced according to the present invention
- the cell mouth degrading enzyme activity is high.
- An increase in lecol yield can be expected.
- fermented foods and drinks having a brilliant fragrance can be produced by increasing the amount of amino acid produced by high proteolytic enzyme activity.
- liquid culture allows stricter culture control than solid culture, a liquid koji with stable quality can be produced at low cost.
- cereals used in the present invention are unmilled or at least refined to such an extent that the husk remains on the surface of the grain, so that the raw material utilization rate and yield are high. Improvement can be expected.
- FIG. 1 shows the activity of glucoamylase and acid-resistant hyaamylase of a culture obtained by culturing in a liquid medium using potassium nitrate as a nitrogen source.
- the black bars indicate darcoamylase activity (U / ml), and the white bars indicate acid-resistant a-amylase activity (U / ml).
- FIG. 2 shows the activity of darcoamylase and acid-resistant ⁇ -amylase in a culture obtained by culturing in a liquid medium using inorganic nitrogen and inorganic salt. Also, the black bar shows dalcoamylase activity (U / ml), and the white bar shows acid-resistant a-amylase activity (U / ml).
- FIG. 3 shows the activity of darcoamylase and acid-resistant ⁇ -amylase in a culture obtained by culturing in a liquid medium using yeast cells or yeast autolysate as a nitrogen source.
- the black bar shows darcoamylase activity (U / ml), and the white bar shows acid-resistant a-amylase activity (U / m 1).
- FIG. 4 shows the activity of darcoamylase and acid-resistant hyaamylase of a culture obtained by culturing in a liquid medium using a combination of inorganic nitrogen, inorganic salt and yeast cells. Also, the black bar shows darcoamylase activity (UZml), and the white bar shows acid-resistant ⁇ -amylase activity (UZ ml).
- FIG. 5 shows the activity of darcoamylase and acid-resistant ⁇ -amylase of a culture obtained by culturing in a liquid medium using a combination of barley koji, yeast cells and inorganic nitrogen as a nitrogen source.
- the black bar shows dalcoamylase activity (UZml)
- the white bar shows acid-resistant ⁇ -amylase activity (UZml).
- FIG. 6 shows the activity of darcoamylase and acid-resistant a-amylase of a culture obtained by culturing in a liquid medium using a combination of barley husk and yeast cells as a nitrogen source.
- Ma The black bars show dalcoamylase activity (UZml), and the white bars show acid-resistant ⁇ -amylase activity (U / ml).
- FIG. 7 is a graph showing various enzyme activities in a koji mold culture obtained by culturing in a liquid medium using sulfate, nitrate, and phosphate.
- A is dalcamylase (GA)
- B is acid-resistant a amylase (ASAA)
- C is cellulase (CEL)
- D is acid carboxypeptidase (ACP) activity (U / ml) Respectively.
- koji molds are cultured in a liquid medium prepared by adding raw materials such as cereals and nitrogen sources! / Koji, and liquid koji with enhanced enzyme activity is produced. It includes the process.
- the koji mold is cultured using a liquid medium containing cereals whose whole or part of the surface is at least covered with husk as a raw material for culturing, so it takes time for saccharification of starch in the cereals.
- the rate of sugar release into the culture system is suppressed, and the enzyme activity of the liquid koji is enhanced.
- various enzymes are highly produced by Aspergillus.
- the enzymes produced by Aspergillus include dalcoamylase, (X-amylase, etc., degrading enzymes, cellulase, 13-darcosidase, etc., cellulose-degrading enzymes, acid power lupoxypeptidase, acidic proteases, etc. 1S including degrading enzyme etc. Not necessarily limited to these.
- examples of cereals used as a culture raw material include barley, rice, wheat, buckwheat, seaweed, wheat, millet, culyan, and corn.
- As the shape of these culture raw materials it is necessary that all or a part of the surface is covered with at least the husk, and the degree of the unmilled product or at least the husk being left on the surface of the grain. More than the whitening ratio that has been refined until now can be used, and brown rice, brown wheat, etc. can also be used.
- rice not only brown rice but also all rice husks may be attached, or some rice husks may be attached!
- the cereal is barley, it is 100% of unmilled milling ratio or unmilled The milling rate of 100%, and the ratio of the unmilled milling rate (100%) minus the barley grain rate (generally 7-8%), that is, the milling rate of about 92-93% That's it.
- the milling rate refers to the proportion of cereals that remain after milling the cereals.
- the milling rate of 90% means that 10% of the skin of the surface layer of the cereals is scraped off.
- the unpolished barley includes unpolished barley to those that have been refined to such an extent that the husk remains on the surface of the grain, that is, those having a milling ratio of 90% or more.
- the husk is the outer part that covers the surface of grains of cereals.
- the above culture raw materials are used alone or in combination of two or more for the preparation of the following liquid medium. That is, the cultivated cereal grains are mixed with water together with a nitrogen source described later to prepare a liquid medium.
- the blending ratio of cereals is adjusted so that enzymes such as amylolytic enzymes, cellulose-degrading enzymes, and proteolytic enzymes are selectively produced and accumulated in the koji mold culture.
- barley when barley is used as a culture raw material, it is prepared in a liquid medium supplemented with 1 to 20% (w / vol) brown barley with respect to water.
- unpolished barley when unpolished barley is used as brown wheat, it is more preferably prepared in a liquid medium supplemented with 8 to 10% (w / vol). Is more preferably prepared in a liquid medium supplemented with 1 to 4% (w / vol).
- brown rice when brown rice excluding rice husks is used as a culture raw material, brown rice is 1 to 20% (w / vol), preferably 5 to 13% (w / vol), more preferably 8 to 10% with respect to water. Prepared in a liquid medium supplemented with% (w / vol).
- cereals When other cereals are used, they are also prepared in a liquid medium supplemented with 1-20% (w / vol) of water.
- the optimum blending amount varies depending on the degree of whitening of the raw material to be used, the koji strain to be used, the type of culture raw material, and the like.
- the amount of culture raw material used exceeds the upper limit, the viscosity of the culture solution increases, the supply of oxygen and air necessary for aerobic culture of Neisseria gonorrhoeae becomes insufficient, and the oxygen concentration in the culture decreases. This is not preferable because the culture is difficult to proceed.
- the amount of the raw material used reaches the lower limit. Otherwise, the target enzyme will not be produced at a high rate.
- the starch contained in the culture raw material may be gelatinized in advance before culturing.
- the gelatinization method of the starch is not particularly limited and may be carried out according to conventional methods such as a steaming method and a roasting method. In the liquid medium sterilization process described later, when heating to a temperature higher than the gelatinization temperature of starch by high-temperature high-pressure sterilization or the like, starch is gelatinized at the same time by this treatment.
- the liquid medium contains organic substances and inorganic substances as a nitrogen source.
- These nitrogen sources are not particularly limited as long as the koji mold grows and the target enzyme is sufficiently produced.
- the organic substance include yeast cells or processed products thereof (for example, yeast cell decomposition products, yeast extract, etc.), cereal husks, cereal cocoons and the like, and examples of inorganic substances include nitrates.
- potassium nitrate As the nitrate, potassium nitrate, sodium nitrate and the like can be used, and potassium nitrate is particularly preferable.
- These nitrogen sources may be used alone or in combination of two or more organic substances and Z or inorganic substances.
- the amount of the nitrogen source added is not particularly limited as long as it promotes the growth of Aspergillus, but as an organic material it is 0.1 to 2% (wZvol), preferably 0.5 to 1.0% (wZvol). ). Further, the amount of addition of nitrate as an inorganic substance is 0.05-2.0% (wZvol), preferably 0.1 to 2.0% (w / vol), most preferably 0.2 to 1.5. % (w / vol).
- Yeasts used as a kind of nitrogen source in the present invention include beer yeasts, wine yeasts, whiskey yeasts, shochu yeasts, sake yeasts, baker's yeasts used in the brewing process and food production, as well as the genus Saccharomyces.
- Candida Torulopsis, Hanseniaspora, Hansenula, Debaryomyces, Saccharomycopsis, Saccharomycopsis Mycodes (Saccharomycodes), Pichia (Pichia), Nokiisore And yeast cells of the genus Pachysolen.
- yeasts the cells themselves can be used as a nitrogen source, but they can also be used as a yeast cell decomposition product or a yeast extract.
- yeast cell degradation products or yeast extracts are produced by self-digestion of yeast cells (method of solubilizing cells using proteolytic enzymes inherent in yeast cells), enzyme decomposition methods (from microorganisms and plants).
- hot water extract method method of soaking yeast cells in hot water for a certain period of time
- acid or alkali decomposition method variantous acids Or a method of adding an alkali to make it soluble
- a physical crushing method sonication, high-pressure homogenization method, mixing by mixing solid materials such as glass beads and crushing by stirring
- freezing It can be obtained by processing by the thawing method (method of crushing by freezing and thawing once or more).
- Cereal meal such as rice bran can also be used as a nitrogen source, and this is a by-product produced when the cereal is refined.
- the seeds of cereals are the epidermis, the embryo, the endosperm, and the power that protects them. Of these, the combination of the embryo and the epidermis is the cocoon.
- the cereal husk that is, the skin of the cereal
- the nitrogen source usually the same kind of cereal husk as the cultivated raw material cereal is used.
- These cereal straws and cereal husks can be used in combination with other nitrogen sources.
- the liquid medium used in the present invention may contain sulfate and phosphate in addition to the above-described culture raw material and nitrogen source.
- sulfate and phosphate in addition to the above-described culture raw material and nitrogen source.
- magnesium sulfate heptahydrate, iron sulfate heptahydrate, ammonium sulfate and the like can be used as the sulfate, and magnesium sulfate heptahydrate is particularly preferable.
- phosphate potassium dihydrogen phosphate, ammonium phosphate, or the like can be used, and potassium dihydrogen phosphate is particularly preferable.
- These inorganic salts can be used alone or in combination of two or more.
- the concentration of the above-mentioned inorganic salts in the liquid medium is such that enzymes such as amylolytic enzymes, cellulose-degrading enzymes, and proteolytic enzymes are selectively produced and accumulated in the koji mold culture. It is adjusted to the extent to be able to. For example, 0.01 -0 5% in the case of sulphate, preferably ⁇ or from 0.02 to 0 1%, in the case of phosphate ⁇ or 0. 05 ⁇ :.. L 0 0 /0, preferably ⁇ or 0 1 ⁇ 0.5 ⁇ / ⁇ 0 ⁇ Deviation is w / vol).
- the above inorganic salts may be used alone or in combination of two or more.
- organic substances other than the aforementioned nitrogen sources and inorganic salts, inorganic salts, and the like can be appropriately added as nutrient sources.
- These additives are not particularly limited as long as they are commonly used for culturing koji mold, but organic substances such as wheat koji, corn steep liquor, soybean koji, defatted soybean, etc., and inorganic salts such as ammonia.
- water-soluble compounds such as salt, potassium salt, calcium salt, and magnesium salt. Two or more organic substances and Z or inorganic salts may be used at the same time.
- the amount added is not particularly limited as long as it promotes the growth of Neisseria gonorrhoeae, but is about 0.1 to 5% (wZvol) for organic substances and 0.1 to 1% (w / vol) for inorganic salts. It is preferable to add a certain amount.
- these nutrient sources are added in excess of the upper limit, it is not preferable because it inhibits the growth of Neisseria gonorrhoeae.
- the addition amount is less than the lower limit, enzyme production is not promoted, which is also not preferable.
- the liquid culture medium of the koji mold obtained by mixing the above-described culture raw material and nitrogen source with water is not particularly limited as to a treatment method that may be sterilized as necessary.
- An example is the high-temperature and high-pressure sterilization method, which can be performed at 121 ° C for 15 minutes.
- starch-degrading enzymes such as dalcore amylase, acid-resistant ⁇ -amylase and a-amylase, cellulolytic enzymes such as cellulase and 13-darcosidase, and proteolytic fermentation such as acid carboxypeptidase and acid protease Neisseria gonorrhoeae having productivity such as elemental is preferable.
- Aspergillus kawachii and the like are included as a white mold, and Aspergillus niger and the like are used as a black bacterium and Aspergillus niger.
- the form of the koji mold inoculated into the medium is arbitrary, and spores or hyphae can be used.
- These koji molds can be used either by culturing with one kind of strain or by mixed culturing with two or more kinds of the same or different kinds of bacteria. There is no problem with using any form of spores or hyphae obtained by preculture, but it is preferable to use hyphae because the time required for the logarithmic growth phase is shortened.
- the amount of koji mold inoculated into the liquid medium there is no particular limitation on the amount of koji mold inoculated into the liquid medium, but about 1 X 10 4 to 1 X 10 6 spores per ml of liquid medium, and 0.1 to It is preferable to inoculate about 10%.
- the culture temperature of the koji mold is not particularly limited as long as it does not affect the growth, but it is preferably 25 to 45 ° C, more preferably 30 to 40 ° C. If the culture temperature is low, the growth of koji molds slows down, and contamination with various bacteria tends to occur. A suitable incubation time is 24 to 72 hours.
- Any culture apparatus may be used as long as it can perform liquid culture.
- Neisseria gonorrhoeae needs to perform aerobic culture, it needs to be performed under aerobic conditions where oxygen and air can be supplied into the medium. Further, during the culture, it is preferable to stir so that the raw materials, oxygen, and bacilli in the medium are uniformly distributed in the apparatus.
- the stirring conditions and the aeration amount may be appropriately selected depending on the culture apparatus, the viscosity of the medium, etc. as long as the culture environment can be maintained aerobically.
- the liquid koji includes a culture solution obtained by centrifuging a culture, a concentrate thereof, a dry product thereof, and the like in addition to the culture itself.
- enzymes such as amylolytic enzymes, cellulose-degrading enzymes, protein-degrading enzymes and the like can be produced at high yields.
- the method for producing an enzyme according to claim 14 includes the method for producing a liquid koji described above. It is the same.
- the liquid koji obtained by the production method of the present invention can be suitably used for the production of fermented foods and drinks such as shochu.
- fermented foods and drinks such as shochu.
- shochu when making sake, at the brewing mother and each mash preparation stage, when making shochu, at the mash preparation stage, when making soy sauce, make miso at the preparation stage.
- mirin in the preparation stage when producing amazake in the preparation stage, liquid rice cake can be used instead of solid rice cake in the preparation stage.
- liquid soot a part of the obtained liquid soot can be used as a starter in the next liquid soot production.
- stable production can be achieved, and at the same time, production efficiency can be improved.
- the liquid cake obtained by the method of the present invention can be used as a pharmaceutical preparation such as an enzyme preparation and a disinfectant because of its high enzyme activity.
- the obtained koji mold culture may be concentrated and purified to a desired degree, and an appropriate excipient, thickener, sweetener and the like may be added to prepare a preparation by a conventional method.
- Example 1 Additional inorganic nitrogen in production of liquid soot
- the effect of adding potassium nitrate as inorganic nitrogen to the liquid medium is as follows. In other words, in the water with no addition (control), 0.2% (wZvol) or 0.4% (wZvol) potassium nitrate, the raw brown wheat as raw material is 2% (w / vol). Three types of liquid media were prepared.
- kawachii IFO43008 was inoculated to 1% (v / vol) with respect to the liquid medium.
- the brown barley used was 95% white sterling from Australia (basically the same in the following examples).
- the cells were cultured for 48 hours at a temperature of 37 ° C and a shaking speed of lOOrpm. After completion of the culture, the activities of darcoamylase and acid-resistant ⁇ -amylase were measured for each of the obtained cultures.
- Table 1 and FIG. 1 show the activity of darcoamylase and acid-resistant ⁇ -amylase in the cultures obtained by culturing koji molds in liquid media according to the amount of potassium nitrate used.
- a sugar squid fraction determination kit (manufactured by Kikkoman) was used for measuring the enzyme activity of dalcore mirase.
- the enzyme activity of acid-resistant ⁇ -amylase was measured by slightly improving the method described in Non-Patent Document 7, inactivating the non-acid-resistant ⁇ -amylase by acid treatment of the culture, and then a-amylase. Acid resistance a-amylase activity was measured using a measurement kit (manufactured by Kikkoman Corporation).
- Example 2 Additional treatment of a plurality of inorganic substances in the production of liquid soot
- potassium nitrate or sodium nitrate as inorganic nitrogen and potassium dihydrogen phosphate as inorganic salt were added to water in the formulation shown in Table 2.
- the amount of sodium nitrate added was also calculated as a 20 mM force, which is a molar concentration equivalent to 2.0% potassium nitrate, and 1.7% was added so that the nitrate ion concentration would be equal.
- water containing no inorganic nitrogen and no inorganic salt was used as a control.
- Example 3 Additional yeast cells or yeast autolysate in the production of liquid koji
- a liquid koji was produced using a liquid medium supplemented with yeast cells or yeast autolysate (yeast extract).
- Yeast cells Beer yeast cells obtained by dehydrating beer yeast to a water content of about 70% by centrifugation at 5,000 X g for 15 minutes
- Yeast autolysate (1) Yeast autolysate obtained by suspending beer yeast cells in an equal volume of water and treating them at 52 ° C for 18 hours
- Yeast autolysates (2) Yeast autolysates obtained by suspending beer yeast cells in an equal volume of 1% lactic acid and treating them at 52 ° C for 18 hours
- the prepared yeast cells and yeast autolysates (1) to (2) are added to water so that they are 0.20%, 0.50%, and l% (v / vol), respectively.
- a liquid medium was prepared by adding cultivated raw barley to 2% (w / vol) to these raw waters, and then liquid culture of white koji molds was performed under the same conditions as in Example 1. Thereafter, darcoamylase activity and acid-resistant a-amylase activity were measured in the same manner as in Example 1.
- liquid culture medium (N 0.1) prepared by adding only 2% (w / vol) of barley to water was also inoculated with white koji mold in the same manner as in Example 1, and liquid culture was performed. Then, the darcoamylase activity and the acid-resistant ⁇ -amylase activity of the obtained liquid koji were measured in the same manner. The results are shown in Table 3 and Fig. 3.
- both the test group to which the yeast cells themselves were added and the test group to which the yeast autolysate was added had more dalcoamylase activity than the control group (No. l) without addition, and Both acid resistance ⁇ -amylase activity is increased.
- the ⁇ ⁇ .7 test plot showed good results.
- the dalcoamylase activity and acid-resistant ⁇ -amylase activity increased in proportion to the amount of added calories of yeast cells or yeast autolysate.
- Example 4 Additional a combination of inorganic nitrogen and cocoon or inorganic salt and yeast cells
- yeast cells were yeast cells (yeast cells of Example 3) obtained by dehydrating brewer's yeast from which beer brewing process capability had been recovered to a water content of about 70% by centrifugation.
- yeast cells yeast cells of Example 3 obtained by dehydrating brewer's yeast from which beer brewing process capability had been recovered to a water content of about 70% by centrifugation.
- a control No. 1
- additive-free raw water was used.
- Example 5 (combination of barley meal, yeast cells, inorganic substance)
- Barley koji and yeast cells, potassium nitrate, and potassium dihydrogen phosphate were combined as shown in Table 5 and added to water to obtain raw material water for the liquid medium.
- the barley koji used was obtained by recovering the kneading power of 70% refined barley (Australian Stirling) and contains barley husk and koji.
- the yeast cells used were the yeast cells themselves (yeast cells of Example 3) obtained by dewatering beer yeast from which beer brewing process capability had been recovered to a water content of about 70% by centrifugation. On the other hand, additive-free raw water was used as a control.
- Example 6 Additional a combination of barley husk and yeast cells
- Potassium nitrate, potassium dihydrogen phosphate, barley husk and yeast cells were combined as shown in Table 6 and added to the raw water to obtain raw water for the liquid medium.
- the barley husk used was 70% polished barley mashing ability.
- the obtained barley husk was passed through a 2mm mesh sieve and only barley husk was recovered.
- the used pressed yeast is a yeast cell itself (yeast cell of Example 3) obtained by dehydrating beer yeast recovered from the beer brewing process to a water content of about 70% by centrifugation.
- raw water (No.l) with no additive was used as a control.
- Example 7 (Effect of sulfate addition in liquid koji production)
- Liquid rice cakes were produced by the following method, and their enzyme activities were measured.
- dalcoamylase activity (GA) and acid-resistant protease activity (ASAA), which are amylolytic enzymes, were measured.
- the measurement of darcoamylase activity was performed using a sugar squid fraction determination kit (manufactured by Kikkoman).
- AZA acid-resistant ⁇ -amylase activity
- CEL Cellulase activity
- ACP acid carboxypeptidase activity
- CEL Cellulase activity
- CMC carboxymethylcellulose
- DAS dinitrosalicylic acid
- DNS dinitrosalicylic acid
- the reaction stop solution was heated accurately in a boiling water bath for 15 minutes. Subsequently, after cooling to room temperature, the amount of reducing sugar corresponding to glucose was quantified by measuring the absorbance at 540 nm.
- One unit of cellulase activity (CEL) was expressed as the amount of enzyme that produces a reducing sugar equivalent to: mol of dalcose per minute.
- the acid carboxypeptidase activity (ACP) was measured using an acid carboxypeptidase measurement kit (manufactured by Kikkoman).
- test group 2 which was a magnesium sulfate-added cocoon group.
- cellulase and acid carboxypeptidase activity also increased in test group 2 where magnesium sulfate was added.
- the activity of the test group 3 to which the same magnesium salt, ie, salt ⁇ magnesium was added did not increase, suggesting that the main body of the enzyme productivity increasing effect was the sulfate group.
- High production of cellulose-degrading enzyme can be expected to reduce mash viscosity and increase alcohol yield in shochu production, and high production of proteolytic enzyme will increase the amino acid component of shochu mash. It will also be possible to produce shochu with a beautiful and fragrant aroma.
- the enzyme group produced by Aspergillus oryzae such as the amylolytic enzyme group other than the enzyme measured this time, the cellulose-degrading enzyme group, and the proteolytic enzyme group, may be generally highly produced. Seems to be high.
- liquid culture enables strict culture control compared to solid culture, so that a liquid koji with stable quality can be produced efficiently and inexpensively.
- liquid koji produced by the present invention for the production of fermented foods and drinks such as shochu, the yield of alcohol and the amount of amino acids produced can be increased, and a fermented food and drink with a gorgeous flavor can be efficiently produced.
- cereals used in the present invention are unmilled or at least refined to such an extent that the husk remains on the surface of the grain, so that the raw material utilization rate and yield are high. Improvement can be expected.
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Abstract
Description
Claims
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2006270826A AU2006270826C1 (en) | 2004-04-09 | 2006-07-20 | Method of producing liquid koji |
CA002614457A CA2614457A1 (en) | 2005-07-22 | 2006-07-20 | Method of producing liquid koji |
US11/995,942 US20100120119A1 (en) | 2005-07-22 | 2006-07-20 | Method of producing liquid koji |
EP06781332.9A EP1908818B1 (en) | 2005-07-22 | 2006-07-20 | Process for production of liquid koji |
CN2006800239961A CN101218338B (zh) | 2005-07-22 | 2006-07-20 | 生产液体曲的方法 |
KR1020087001649A KR101394009B1 (ko) | 2005-07-22 | 2006-07-20 | 액체국의 제조 방법 |
BRPI0613646-0A BRPI0613646A2 (pt) | 2005-07-22 | 2006-07-20 | método de produzir koji lìquido tendo atividade realçada de uma enzima, koji lìquido, método de produzir uma preparação de enzima, preparação de enzima, e, método de produzir uma enzima |
ES06781332.9T ES2521623T3 (es) | 2005-07-22 | 2006-07-20 | Procedimiento de producción de koji líquido |
DK06781332.9T DK1908818T3 (da) | 2005-07-22 | 2006-07-20 | Fremgangsmåde til fremstilling af flydende koji |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005212290 | 2005-07-22 | ||
JP2005-212290 | 2005-07-22 | ||
JP2005-290651 | 2005-10-04 | ||
JP2005290651 | 2005-10-04 |
Publications (1)
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WO2007010979A1 true WO2007010979A1 (ja) | 2007-01-25 |
Family
ID=37668851
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/314372 WO2007010979A1 (ja) | 2004-04-09 | 2006-07-20 | 液体麹の製造方法 |
Country Status (12)
Country | Link |
---|---|
US (1) | US20100120119A1 (ja) |
EP (1) | EP1908818B1 (ja) |
KR (1) | KR101394009B1 (ja) |
CN (1) | CN101218338B (ja) |
AU (1) | AU2006270826C1 (ja) |
BR (1) | BRPI0613646A2 (ja) |
CA (1) | CA2614457A1 (ja) |
DK (1) | DK1908818T3 (ja) |
ES (1) | ES2521623T3 (ja) |
RU (1) | RU2409659C2 (ja) |
TW (1) | TWI422679B (ja) |
WO (1) | WO2007010979A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1932905A4 (en) * | 2005-10-05 | 2010-01-06 | Asahi Breweries Ltd | PROCESS FOR PRODUCING FUNGAL CULTURE |
US8124374B2 (en) | 2005-10-12 | 2012-02-28 | Asahi Breweries, Ltd. | Method of producing recombinant protein |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8802170B2 (en) | 2004-04-09 | 2014-08-12 | Asahi Breweries, Ltd. | Method of manufacturing liquid koji |
CN102604876A (zh) * | 2012-04-10 | 2012-07-25 | 江苏今世缘酒业股份有限公司 | 细菌液体培养基及制备方法 |
KR101571827B1 (ko) | 2013-04-17 | 2015-11-25 | 샘표식품 주식회사 | 전분 분해 효소 활성을 지니는 균주의 생산방법 |
JP6337366B2 (ja) * | 2013-12-06 | 2018-06-06 | 三和油脂株式会社 | 米糠麹の製造方法およびこれを用いた米糠麹糖化物、米糠麹穀物粉糖化物の製造方法 |
KR101745784B1 (ko) | 2015-09-03 | 2017-06-20 | 씨제이제일제당 (주) | 전통 메주에서 분리한 신균주와 이를 이용한 콩곡자 제조방법 및 그 제조방법에 의해 제조된 콩곡자 |
RU2668152C1 (ru) * | 2017-12-21 | 2018-09-26 | ФЕДЕРАЛЬНОЕ ГОСУДАРСТВЕННОЕ БЮДЖЕТНОЕ УЧРЕЖДЕНИЕ НАУКИ ИНСТИТУТ ПРОБЛЕМ ЭКОЛОГИИ И ЭВОЛЮЦИИ им. А.Н. СЕВЕРЦОВА РОССИЙСКОЙ АКАДЕМИИ НАУК (ИПЭЭ РАН) | Способ стимуляции активности грибов-биодеструкторов полимерных отходов |
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- 2006-07-20 RU RU2008106769/10A patent/RU2409659C2/ru not_active IP Right Cessation
- 2006-07-20 CA CA002614457A patent/CA2614457A1/en not_active Abandoned
- 2006-07-20 WO PCT/JP2006/314372 patent/WO2007010979A1/ja active Application Filing
- 2006-07-20 KR KR1020087001649A patent/KR101394009B1/ko not_active IP Right Cessation
- 2006-07-20 DK DK06781332.9T patent/DK1908818T3/da active
- 2006-07-20 EP EP06781332.9A patent/EP1908818B1/en not_active Not-in-force
- 2006-07-20 BR BRPI0613646-0A patent/BRPI0613646A2/pt not_active Application Discontinuation
- 2006-07-20 AU AU2006270826A patent/AU2006270826C1/en not_active Ceased
- 2006-07-20 ES ES06781332.9T patent/ES2521623T3/es active Active
- 2006-07-20 US US11/995,942 patent/US20100120119A1/en not_active Abandoned
- 2006-07-20 CN CN2006800239961A patent/CN101218338B/zh not_active Expired - Fee Related
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1932905A4 (en) * | 2005-10-05 | 2010-01-06 | Asahi Breweries Ltd | PROCESS FOR PRODUCING FUNGAL CULTURE |
US8715979B2 (en) | 2005-10-05 | 2014-05-06 | Asahi Breweries, Ltd. | Method of producing filamentous fungus culture product |
US8124374B2 (en) | 2005-10-12 | 2012-02-28 | Asahi Breweries, Ltd. | Method of producing recombinant protein |
Also Published As
Publication number | Publication date |
---|---|
AU2006270826A1 (en) | 2007-01-25 |
US20100120119A1 (en) | 2010-05-13 |
DK1908818T3 (da) | 2014-11-03 |
EP1908818A4 (en) | 2009-11-04 |
EP1908818B1 (en) | 2014-10-15 |
TWI422679B (zh) | 2014-01-11 |
RU2409659C2 (ru) | 2011-01-20 |
TW200738875A (en) | 2007-10-16 |
CA2614457A1 (en) | 2007-01-25 |
CN101218338A (zh) | 2008-07-09 |
AU2006270826B2 (en) | 2011-07-14 |
ES2521623T3 (es) | 2014-11-13 |
BRPI0613646A2 (pt) | 2012-11-06 |
CN101218338B (zh) | 2012-04-04 |
RU2008106769A (ru) | 2009-08-27 |
EP1908818A1 (en) | 2008-04-09 |
KR101394009B1 (ko) | 2014-05-12 |
AU2006270826C1 (en) | 2011-12-22 |
KR20080036044A (ko) | 2008-04-24 |
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