JP2004242532A - Method for producing fuel from waste cake - Google Patents

Method for producing fuel from waste cake Download PDF

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Publication number
JP2004242532A
JP2004242532A JP2003033924A JP2003033924A JP2004242532A JP 2004242532 A JP2004242532 A JP 2004242532A JP 2003033924 A JP2003033924 A JP 2003033924A JP 2003033924 A JP2003033924 A JP 2003033924A JP 2004242532 A JP2004242532 A JP 2004242532A
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Japan
Prior art keywords
waste
fuel
western confectionery
alcohol
producing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
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JP2003033924A
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Japanese (ja)
Inventor
Hideaki Kiyokawa
英明 清川
Akira Chiga
昭 千賀
Noriyasu Sasaki
徳康 佐々木
Hideo Morikawa
日出男 森川
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CHUO KAKOKI
Chuo Kakohki Coltd
Original Assignee
CHUO KAKOKI
Chuo Kakohki Coltd
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Priority to JP2003033924A priority Critical patent/JP2004242532A/en
Publication of JP2004242532A publication Critical patent/JP2004242532A/en
Pending legal-status Critical Current

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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00Technologies for the production of fuel of non-fossil origin
    • Y02E50/10Biofuels, e.g. bio-diesel

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  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Processing Of Solid Wastes (AREA)
  • Liquid Carbonaceous Fuels (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for producing a fuel from waste cakes, by which the waste cakes can be converted into a useful fuel without being combusted. <P>SOLUTION: This method for producing the fuel from the waste cakes comprises subjecting the waste cakes containing sugar in an amount of ≥45 mass % based on the solid content to an alcohol fermentation using yeast to produce ethyl alcohol for the fuel. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【0001】
【技術分野】
本発明は、廃棄洋菓子からアルコールや水素の燃料を製造する方法に関する。特に、バームクーヘン、ショートケーキ、ホットケーキ等の糖質含有率が高い廃棄洋菓子に好適な発明である。
【0002】
【背景技術】
従来、廃棄洋菓子は、そのまま燃焼させるか、又は、産業廃棄物として、生ゴミ処理されているのが現状である。
【0003】
しかし、廃棄洋菓子は、砂糖、澱粉(炭水化物)等の糖質含有率が高いとともに、塩分(隠し味として食塩を含有させる)も含むため、ダイオキシン等の公害物を発生する。また、廃棄洋菓子は、腐敗が進行し易く、その処理を速くしないと、腐敗し悪臭を出すおそれがある。
【0004】
なお、本発明者らが知る限りにおいては、廃棄洋菓子を発酵させて有用物を製造する先行技術文献情報は存在しない。
【0005】
【発明の開示】
本発明は、上記にかんがみて、廃棄洋菓子を燃焼処理せずに有用物である燃料に変換できる廃棄洋菓子からの燃料の製造方法を提供することを目的とする。
【0006】
本発明は、上記課題
(目的)を下記構成の廃棄洋菓子からの製造方法により解決するものである。
【0007】
糖質を固形分基準で45質量%以上含んだ廃棄洋菓子を、酵母菌によりアルコール発酵させて燃料用エチルアルコールを製造することを特徴とする。
【0008】
糖質を固形分基準で45質量%以上含んだ廃棄洋菓子を、水素発酵菌により水素発酵させて燃料用水素を製造することを特徴とする。
【0009】
上記、廃棄洋菓子が、固形分基準で糖質を65%以上含むものが望ましい。エチルアルコール又は水素の原料あたりの回収効率が増大するためである。
【0010】
【発明を実施するための最良の形態】
本発明の一つは、糖質を固形分基準で45質量%以上含んだ廃棄洋菓子を、酵母菌によりアルコール発酵させて燃料用アルコールを製造するものである。
【0011】
ここで、糖質とは、糖分(砂糖等の少糖類)及び多糖類(澱粉等)を含む概念である。
【0012】
廃棄洋菓子とは、主として、食べ残し、売れ残ったもの、及び、工場生産による不良品を含む概念である。
【0013】
廃棄洋菓子としては、アップルパイ(45%;59%)、シュークリーム(55%;48%)、ショートケーキ(31%;70%)、ゼリー(79%;96%)、ババロア(67%;52%)、ミルクプリン(76%;64%)、アンパン(35%;85%)、クリームパン(36%;87%)ホットケーキ(40%;86%)、ウエハス(ウェーハー)(2%;71%)、サブレ(4%;70%)、ビスケット(2%;78%)、キャラメル(8%;82%)、ドロップ(2%;100%)、マシュマロ(18%;96%)、チョコレート(1%;60%)、チュ−インガム(2%;79%)、あんまん(36%;78%)、肉まん(41%;71%)、バームクーヘン等を挙げることができる。なお、括弧内には、代表的な水分及び固形分基準糖質濃度を前後に記載した(「食品成分データ集」URL:htpp://www4.ocn.ne.jp/ ̄katonet/syokuhinn/youkasi.htm参照)。また、バームクーヘンは、市販レシピによると糖質約75%で砂糖が糖質中約45%含有させる処方である。
【0014】
そして、これらの洋菓子のうち、糖質を固形分基準で50%以上、望ましくは65%以上、さらに望ましくは75%以上を含むものが、アルコール発酵させるに際して、対原料回収効率が良好である。特に、これらのうちで、水分含有率の低い方(望ましくは20%以下)が、粉砕効率が良好であり望ましい。さらには、糖質中の砂糖含有率の高いもの(望ましくは30%以上、さらに望ましくは40%以上)が、糖化の時間が少なくて済みのぞましい。
【0015】
そして、上記廃棄洋菓子を使用して、図1に示すような工程を経て、アルコール燃料を製造する。
【0016】
(1)第1工程(クラッシング工程)
クラッシャーを使用して、3〜5mmに粉砕する。この粉砕に使用するクラッシャーとしては、特に限定されないが、ピンミル、又は、ニ軸押出機等の先端に網目(開き:3〜5mm)を備えてものを使用する。なお、クラッシャーに投入する前に、洋菓子を包んでいるアルミ箔やプラスチック類は取り除いておく
(2)第2工程(油脂分離工程)
油脂分離機又は油脂資化槽(油脂酵素分解槽)を用いて油脂成分を除去する。油脂成分は、発酵阻害成分であるため、取り除いておく必要がある。
【0017】
ここで、油脂分離機としては、例えば、投入攪拌槽と静置分離槽と、オーバーフローした油脂を受ける油受け槽と、水に溶けた糖質を貯留する糖質液槽とに遮蔽板に仕切られた4槽からなる構造のものを使用できる。
【0018】
また、油脂資化槽は、油脂資化酵母で油脂を発酵源とする発酵槽である。
【0019】
(3)第3工程(スラリー調製工程)
次に、上記油脂成分除去原料を、攪拌機ないし混練機を備えたスラリー調製槽に投下して、通常、水又は温水を添加して、固形分濃度10〜25%のスラリーを調製する。
【0020】
(4)第4工程(蒸煮工程)
上記スラリーを、蒸煮釜に移し蒸煮する。このときの蒸煮条件は、例えば、80〜128℃×60〜30minの間で適宜設定をする。この蒸煮は、殺菌すると同時に、他の糖質のうちの澱粉成分のα化をして糖化が円滑に行なわれるようにする。上記条件において、温度が低すぎると、α化が充分進行せず、逆に温度が高過ぎると、炭化して(焦げて)発酵不適物となる。
【0021】
(5)第5工程(糖化工程)
上記蒸煮工程を経た原料は、糖化槽へスラリーポンプ等により移送され、糖質を構成する澱粉質の糖化(液化、加水分解)を行なう。糖化には、麹やαアミラーゼ等の糖化酵素(加水分解酵素)を添加して行なう。このときの糖化(加水分解)条件は、例えば、55℃×2hとする。
【0022】
(6)第6工程(発酵工程)
上記糖化工程を経た原料(液化糖)は、発酵槽へ移し、アルコール酵母を加えてアルコール発酵(生成成分は主としてエチルアルコール)をさせる。ここで、アルコール発酵の条件は、例えば、30〜32°×4dayとする。また、アルコール酵母として具体的には、「Saccharomyces cerevisial Hausen Rasse II」を好適に使用可能である。そして、発酵生成物は、フィルターでこしてアルコール含有液(エチルアルコール)とする。
【0023】
(7)第7工程(蒸留工程)
上記アルコール含有液を、蒸留塔(蒸留設備)へ移し、アルコール濃度約95%まで蒸留により濃縮させる。
【0024】
こうして、計算上は、糖質(澱粉+糖分)100kgに対して約68Lのエチルアルコール溶液(95vol%)が得られる。
【0025】
本発明の他の一つは、糖質を固形分濃度で45質量%以上含んだ廃棄洋菓子を、水素発酵菌により水素発酵させて燃料用水素を製造することを特徴とするものである。
【0026】
燃料用水素の製造方法は、上記第5工程までは、同じである。そして、第6工程(発酵工程)において、アルコール酵母菌の代わりに水素発酵菌を使用し、得られた水素は、第6工程において、蒸留濃縮する代わりに、コンプレッサで圧縮減容化して、水素ボンベ等に封入してもよい。
【0027】
【発明の効果】
上記の如く、従来、燃焼廃棄または生ごみ処理に準じて廃棄されて、ほとんど有効利用されていなかった廃棄洋菓子を、その成分(糖質とくに砂糖等の少糖類の含有率の高さ)に着目して、効率よく発酵させて燃料化できることを見出して本発明の廃棄洋菓子からの燃料の製造方法に想到したものである。
【0028】
そして、これらの燃料は、自動車用や工業用燃料(例えば、燃料電池)としての利用が可能となるものである。
【0029】
【実施例】
以下、本発明の効果を確認するために行なったジャーファーメンター(保温ジャケット付き発酵試験容器:容量5L)を用いて、行った試験例について説明をする。なお、酵母(Saccharomyces cerevisial Hausen Rasse II)は予め寒天培養したものを用いた。
【0030】
原料としてのホットケーキ(廃棄洋菓子:糖質86%、脂質4.3%)2.5kgを、スプーン等で2mm程度に破砕して、水をいれて約50℃に維持した温水中に投入し、よくかき混ぜて溶解分散させる。そして、所定時間放置して浮遊してきた油成分を除去する。
【0031】
その後、沸騰殺菌した後、蓋をして、55℃まで冷却させて、糖化酵素(液体麹)400ccを添加し、該温度に維持しながら攪拌し2hかけて糖化(液化)を行なう。
【0032】
続いて、冷却して約33℃になったところで、アルコール酵母(酒母)800ccを加えて、徐冷しながら30〜32℃位に保持して4日かけてアルコール発酵を行なった。こうして、約12vol%エチルアルコール(アルコール含有液)4Lを得た。
【0033】
上記アルコール含有液を、実験用環流タイプ蒸留器をいれ、環流比3で行った。こうして約500ccの95vol%エチルアルコールを得た。収量が少ないのは、効率の悪い小容量の実験器で行なったためである。
【図面の簡単な説明】
【図1】本発明の廃棄洋菓子からのアルコール燃料の製造方法を示す工程図である。
[0001]
【Technical field】
The present invention relates to a method for producing alcohol or hydrogen fuel from waste western confectionery. In particular, the present invention is suitable for waste Western confectionery having a high sugar content such as baumkuchen, shortcake, and hotcake.
[0002]
[Background Art]
Conventionally, waste western confectionery is burned as it is or is processed as garbage as industrial waste.
[0003]
However, waste Western confectionery has a high sugar content such as sugar and starch (carbohydrate), and also contains salt (containing salt as a secret taste), thereby generating pollutants such as dioxin. In addition, waste Western confectionery tends to rot, and if the processing is not performed quickly, it may rot and give off a bad smell.
[0004]
In addition, as far as the present inventors know, there is no prior art document information for producing useful products by fermenting waste Western confectionery.
[0005]
DISCLOSURE OF THE INVENTION
In view of the above, an object of the present invention is to provide a method for producing fuel from waste Western confectionery that can convert waste Western confectionery into useful fuel without burning treatment.
[0006]
The present invention solves the above-mentioned problems (objects) by a method for producing from a waste Western confectionery having the following configuration.
[0007]
A waste Western confectionery containing 45% by mass or more of saccharide on a solid basis is alcohol-fermented with yeast to produce ethyl alcohol for fuel.
[0008]
It is characterized in that waste Western confectionery containing saccharides at 45% by mass or more on a solid content basis is subjected to hydrogen fermentation by hydrogen fermenting bacteria to produce hydrogen for fuel.
[0009]
The above-mentioned waste Western confectionery desirably contains sugars of 65% or more on a solid content basis. This is because the recovery efficiency per raw material of ethyl alcohol or hydrogen is increased.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
One aspect of the present invention is to produce a fuel alcohol by subjecting a waste Western confectionery containing 45% by mass or more of carbohydrate on a solid content basis to alcohol fermentation by yeast.
[0011]
Here, the saccharide is a concept including a sugar (oligosaccharide such as sugar) and a polysaccharide (starch or the like).
[0012]
The waste Western confectionery is a concept mainly including leftovers, unsold products, and defective products produced by factories.
[0013]
As waste Western confectionery, apple pie (45%; 59%), cream puff (55%; 48%), shortcake (31%; 70%), jelly (79%; 96%), bavarois (67%; 52%) ), Milk pudding (76%; 64%), amppan (35%; 85%), cream pan (36%; 87%), hot cake (40%; 86%), wafer (wafer) (2%; 71%) ), Sable (4%; 70%), biscuit (2%; 78%), caramel (8%; 82%), drop (2%; 100%), marshmallow (18%; 96%), chocolate (1 %; 60%), chewing gum (2%; 79%), sweet bean (36%; 78%), meat bean (41%; 71%), baumkuchen and the like. In the parentheses, representative water and solid content standard carbohydrate concentrations are described before and after ("Food composition data collection" URL: http://www4.ocn.ne.jp/@katonenet/syokuhinn/youukasi). .Htm). According to Baumkuchen, according to a commercial recipe, sugar is contained in about 75% and sugar is contained in about 45% in sugar.
[0014]
And among these Western confectioneries, those containing 50% or more, preferably 65% or more, more preferably 75% or more of saccharides on a solid basis have a good raw material collection efficiency in alcohol fermentation. In particular, among these, the one with a lower moisture content (preferably 20% or less) is preferable because the pulverization efficiency is good. Furthermore, those having a high sugar content in the carbohydrate (preferably 30% or more, more preferably 40% or more) require less time for saccharification.
[0015]
Then, an alcohol fuel is manufactured through the steps shown in FIG. 1 using the waste Western confectionery.
[0016]
(1) First step (crushing step)
Grind to 3-5 mm using a crusher. The crusher used for this pulverization is not particularly limited, but a pin mill or a twin-screw extruder having a mesh (opening: 3 to 5 mm) at the tip is used. Before putting into the crusher, remove the aluminum foil and plastics surrounding the confectionery. (2) Second step (oil and fat separation step)
The oil and fat component is removed using an oil and fat separator or an oil and fat assimilation tank (oil and oil enzymatic decomposition tank). The fat component is a fermentation inhibiting component and must be removed.
[0017]
Here, as the oil / fat separator, for example, a shielding plate is divided into a charging / stirring tank and a stationary separation tank, an oil receiving tank for receiving overflowing oil / fat, and a carbohydrate liquid tank for storing carbohydrate dissolved in water. A structure having four tanks can be used.
[0018]
The fat and oil assimilation tank is a fermentation tank using fat and oil as a fermentation source with fat and oil assimilating yeast.
[0019]
(3) Third step (slurry preparation step)
Next, the oil / fat component-removing raw material is dropped into a slurry preparation tank provided with a stirrer or a kneader, and usually water or hot water is added to prepare a slurry having a solid content of 10 to 25%.
[0020]
(4) Fourth step (steaming step)
The slurry is transferred to a steaming pot and steamed. The steaming conditions at this time are appropriately set, for example, in the range of 80 to 128 ° C. × 60 to 30 min. In this steaming, at the same time as sterilization, the starch component of other carbohydrates is pregelatinized so that saccharification can be carried out smoothly. Under the above conditions, if the temperature is too low, the pregelatinization does not proceed sufficiently, and if the temperature is too high, on the other hand, it is carbonized (burned) and becomes unsuitable for fermentation.
[0021]
(5) Fifth step (saccharification step)
The raw material that has undergone the above-mentioned steaming step is transferred to a saccharification tank by a slurry pump or the like, and saccharifies (liquefaction, hydrolysis) the starch constituting the saccharide. Saccharification is performed by adding a saccharifying enzyme (hydrolytic enzyme) such as koji or α-amylase. The saccharification (hydrolysis) conditions at this time are, for example, 55 ° C. × 2 hours.
[0022]
(6) Sixth step (fermentation step)
The raw material (liquefied sugar) that has passed through the saccharification step is transferred to a fermentation tank, and alcohol yeast is added to perform alcohol fermentation (mainly ethyl alcohol). Here, the conditions of alcohol fermentation are, for example, 30 to 32 ° × 4 days. In addition, specifically, "Saccharomyces cerevisial Hausen Rase II" can be suitably used as the alcohol yeast. Then, the fermentation product is rubbed with a filter into an alcohol-containing liquid (ethyl alcohol).
[0023]
(7) Seventh step (distillation step)
The alcohol-containing liquid is transferred to a distillation column (distillation equipment) and concentrated by distillation to an alcohol concentration of about 95%.
[0024]
Thus, in calculation, about 68 L of an ethyl alcohol solution (95 vol%) is obtained for 100 kg of saccharide (starch + sugar).
[0025]
Another feature of the present invention is to produce hydrogen for fuel by hydrogen-fermenting waste confectionery containing saccharides at a solid concentration of 45% by mass or more using hydrogen-fermenting bacteria.
[0026]
The method for producing hydrogen for fuel is the same up to the fifth step. Then, in the sixth step (fermentation step), hydrogen fermentation bacteria are used in place of the alcohol yeast, and the obtained hydrogen is compressed and reduced in volume by a compressor in the sixth step instead of being concentrated by distillation. It may be sealed in a cylinder or the like.
[0027]
【The invention's effect】
As described above, waste Western confectionery that has been conventionally discarded according to combustion waste or garbage disposal and has not been used effectively has been focused on its components (the high content of oligosaccharides such as sugars, especially sugar). Then, they found that they can be fermented efficiently to produce fuel, and conceived a method for producing fuel from waste Western confectionery of the present invention.
[0028]
These fuels can be used as automobile or industrial fuels (for example, fuel cells).
[0029]
【Example】
Hereinafter, test examples performed using a jar fermenter (a fermentation test container with a heat retaining jacket: capacity 5 L) performed to confirm the effects of the present invention will be described. In addition, the yeast (Saccharomyces cerevisial Hausen Rase II) used what was previously agar-cultured.
[0030]
2.5 kg of hot cake (waste western confectionery: 86% saccharide, 4.3% fat) as a raw material is crushed into about 2 mm with a spoon or the like, poured into warm water maintained at about 50 ° C. Stir well to dissolve and disperse. Then, the oil component which has been left standing for a predetermined time is removed.
[0031]
Then, after sterilizing by boiling, it is covered, cooled to 55 ° C., 400 cc of saccharifying enzyme (liquid koji) is added, and the mixture is stirred while maintaining the temperature and saccharification (liquefaction) is performed for 2 hours.
[0032]
Subsequently, when the temperature reached about 33 ° C. after cooling, 800 cc of alcohol yeast (shumo) was added, and the temperature was kept at about 30 to 32 ° C. while gradually cooling, and alcohol fermentation was carried out for 4 days. Thus, 4 L of about 12 vol% ethyl alcohol (alcohol-containing liquid) was obtained.
[0033]
The above alcohol-containing liquid was introduced at a reflux ratio of 3 with an experimental reflux type still. Thus, about 500 cc of 95 vol% ethyl alcohol was obtained. The low yield is due to the inefficient and small-volume laboratory equipment.
[Brief description of the drawings]
FIG. 1 is a process chart showing a method for producing alcohol fuel from waste Western confectionery of the present invention.

Claims (5)

糖質を固形分基準で45質量%以上含んだ廃棄洋菓子を、酵母菌によりアルコール発酵させて燃料用エチルアルコールを製造することを特徴とする廃棄洋菓子からの燃料の製造方法。A method for producing fuel from waste Western confectionery, comprising producing an ethyl alcohol for fuel by subjecting waste Western confectionery containing saccharides at 45% by mass or more on a solid basis to alcohol fermentation with yeast. 糖質を固形分基準で45質量%以上含んだ廃棄洋菓子を、水素発酵菌により水素発酵させて燃料用水素を製造することを特徴とする廃棄洋菓子からの燃料の製造方法。A method for producing fuel from waste Western confectionery, comprising producing hydrogen for fuel by hydrogen fermenting waste Western confectionery containing saccharides at 45% by mass or more on a solid content basis with hydrogen-fermenting bacteria. 前記廃棄洋菓子が、糖質を固形分基準で65質量%以上含み、かつ、水分が5質量%以下のものであることを特徴とする請求項1又は2記載の廃棄洋菓子からの燃料の製造方法。The method for producing fuel from waste Western confectionery according to claim 1 or 2, wherein the waste Western confectionery contains sugars of 65% by mass or more on a solid basis and a water content of 5% by mass or less. . 請求項1又は3記載の方法で製造されてなるアルコール燃料。An alcohol fuel produced by the method according to claim 1. 請求項2又は3記載の方法で製造されてなる水素燃料。A hydrogen fuel produced by the method according to claim 2.
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JP2006325518A (en) * 2005-05-27 2006-12-07 Nagoya Container Kk Method for producing combustible liquid from garbage
WO2007034670A1 (en) * 2005-09-20 2007-03-29 Asahi Breweries, Ltd. Method for production of liquid koji having enhanced plant fiber digestive enzyme, liquid koji produced by the method, and use of the liquid koji
WO2007039990A1 (en) * 2005-10-04 2007-04-12 Asahi Breweries, Ltd. Process for producing liquid koji by using aspergillus oryzae
US8124374B2 (en) 2005-10-12 2012-02-28 Asahi Breweries, Ltd. Method of producing recombinant protein
US8715979B2 (en) 2005-10-05 2014-05-06 Asahi Breweries, Ltd. Method of producing filamentous fungus culture product
US8802170B2 (en) 2004-04-09 2014-08-12 Asahi Breweries, Ltd. Method of manufacturing liquid koji

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US8802170B2 (en) 2004-04-09 2014-08-12 Asahi Breweries, Ltd. Method of manufacturing liquid koji
JP2006205017A (en) * 2005-01-26 2006-08-10 Hiroshima Univ Treatment method and treatment system of organic waste
JP4512823B2 (en) * 2005-01-26 2010-07-28 国立大学法人広島大学 Organic waste treatment method and treatment system
JP2006325518A (en) * 2005-05-27 2006-12-07 Nagoya Container Kk Method for producing combustible liquid from garbage
WO2007034670A1 (en) * 2005-09-20 2007-03-29 Asahi Breweries, Ltd. Method for production of liquid koji having enhanced plant fiber digestive enzyme, liquid koji produced by the method, and use of the liquid koji
US7998715B2 (en) 2005-09-20 2011-08-16 Asahi Breweries, Ltd. Method of producing liquid koji having enhanced plant fiber degeneration enzyme, liquid koji obtained by the method and use thereof
KR101324811B1 (en) 2005-09-20 2013-11-01 아사히비루 가부시키가이샤 Method for production of liquid koji having enhanced plant fiber digestive enzyme, liquid koji produced by the method, and use of the liquid koji
WO2007039990A1 (en) * 2005-10-04 2007-04-12 Asahi Breweries, Ltd. Process for producing liquid koji by using aspergillus oryzae
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

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