WO2015025538A1 - バイオエタノール発酵工程用添加剤及びバイオエタノールの製造方法 - Google Patents
バイオエタノール発酵工程用添加剤及びバイオエタノールの製造方法 Download PDFInfo
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- WO2015025538A1 WO2015025538A1 PCT/JP2014/053948 JP2014053948W WO2015025538A1 WO 2015025538 A1 WO2015025538 A1 WO 2015025538A1 JP 2014053948 W JP2014053948 W JP 2014053948W WO 2015025538 A1 WO2015025538 A1 WO 2015025538A1
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P7/00—Preparation of oxygen-containing organic compounds
- C12P7/02—Preparation of oxygen-containing organic compounds containing a hydroxy group
- C12P7/04—Preparation of oxygen-containing organic compounds containing a hydroxy group acyclic
- C12P7/06—Ethanol, i.e. non-beverage
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C43/00—Ethers; Compounds having groups, groups or groups
- C07C43/02—Ethers
- C07C43/03—Ethers having all ether-oxygen atoms bound to acyclic carbon atoms
- C07C43/04—Saturated ethers
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- 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
- C12N1/22—Processes using, or culture media containing, cellulose or hydrolysates thereof
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- 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
- C12N1/38—Chemical stimulation of growth or activity by addition of chemical compounds which are not essential growth factors; Stimulation of growth by removal of a chemical compound
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P7/00—Preparation of oxygen-containing organic compounds
- C12P7/02—Preparation of oxygen-containing organic compounds containing a hydroxy group
- C12P7/04—Preparation of oxygen-containing organic compounds containing a hydroxy group acyclic
- C12P7/06—Ethanol, i.e. non-beverage
- C12P7/08—Ethanol, i.e. non-beverage produced as by-product or from waste or cellulosic material substrate
- C12P7/10—Ethanol, i.e. non-beverage produced as by-product or from waste or cellulosic material substrate substrate containing cellulosic material
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
Definitions
- the present invention relates to an additive for bioethanol fermentation process and a method for producing bioethanol.
- Bioethanol is produced by alcohol fermentation using sugarcane, corn, lignocellulose, etc. as raw materials (Patent Document 1, Non-Patent Document 1).
- Non-Patent Document 1 has a problem that the production efficiency is low when it is produced on a commercial scale. Further, the method (or apparatus) described in Patent Document 1 has a problem that it is not sufficient in terms of production efficiency.
- the objective of this invention is providing the additive which can solve the above problems (that is, can improve production efficiency).
- the bioethanol fermentation process additive of the present invention is characterized by containing the polyoxyalkylene alkyl compound (A) in which the HLB value of griffin is in the range of 0 to 6 and the polyoxyalkylene polyol (B). This is the summary.
- the bioethanol production method of the present invention is characterized in that in the method of producing bioethanol using at least one selected from the group consisting of a saccharide raw material, a starch raw material and a woody (or cellulose) raw material,
- the gist of the invention includes a fermentation process in which the above-mentioned additive for bioethanol fermentation process is added to the fermentation broth and fermented.
- the additive for bioethanol fermentation process of the present invention exhibits remarkably excellent production efficiency in the bioethanol fermentation process.
- bioethanol can be produced with high production efficiency.
- Examples of the polyoxyalkylene compound (A) in which the HLB value of griffin is in the range of 0 to 6 include the polyoxyalkylene alkyl compound (A1) represented by the general formula (1) and the polyoxyalkylene compound represented by the general formula (2). Examples thereof include an oxyalkylene alkyl compound (A2) and a mixture thereof.
- Griffin's HLB value is calculated using the Griffin method (for example, Takehiko Fujimoto, “Introduction to New Surfactants”, Sanyo Kasei Kogyo Co., Ltd., 128-131, 1981, corresponding English version; New Introduction to Surface Active Agents, T .Fujimoto, Sanyo Chemical Industries, Ltd.,. P128-131).
- HLB means not the average value of the plurality of types of polyoxyalkylene compounds, but the respective values of the polyoxyalkylene compounds. .
- R 1 and R 3 are alkyl or alkenyl groups having 4 to 28 carbon atoms
- R 2 and R 4 are hydrogen atoms or monovalent organic groups having 1 to 24 carbon atoms
- AO is an oxyalkylene group having 3 to 18 carbon atoms.
- glycidol a reaction residue of an alkyl glycidyl ether or alkenyl glycidyl ether having 4 to 18 carbon atoms
- EO represents an oxyethylene group
- m and n are integers of 1 to 100
- p is an integer of 3 to 10.
- Examples of the alkyl group or alkenyl group (R 1 , R 3 ) having 4 to 28 carbon atoms include an alkyl group (R) and an alkenyl group (R ′).
- alkyl group (R) examples include butyl, t-butyl, octyl, 2-ethylhexyl, dodecyl, tetradecyl, hexadecyl and octadecyl.
- alkenyl group (R ′) examples include butenyl, octenyl, isooctenyl, dodecenyl, octadecenyl and the like.
- an alkyl group (R) is preferable from the viewpoint of production efficiency.
- examples of the monovalent organic group having 1 to 24 carbon atoms include an alkyl group (R) and an alkenyl group (R ′).
- R and R ′ correspond to the above-mentioned alkyl group (R) and alkenyl group (R ′), respectively.
- a hydrogen atom or monovalent organic group (R 2 , R 4 ) having 1 to 24 carbon atoms a hydrogen atom or an alkyl group (R) is preferable from the viewpoint of production efficiency.
- the oxyalkylene group having 3 to 18 carbon atoms or the reaction residue (AO) of glycidol, alkyl glycidyl ether having 4 to 18 carbon atoms or alkenyl glycidyl ether is oxypropylene.
- examples of the alkyl glycidyl ether having 4 to 21 carbon atoms include methyl glycidyl ether, ethyl glycidyl ether, butyl glycidyl ether, 2-ethylhexyl glycidyl ether, dodecyl glycidyl ether and octadecyl glycidyl ether.
- examples of the alkenyl glycidyl ether having 5 to 21 carbon atoms include vinyl glycidyl ether, butenyl glycidyl ether, 2-ethylhexenyl glycidyl ether, dodecenyl glycidyl ether, and octadecenyl glycidyl ether. Is mentioned.
- M and n are an integer of 1 to 100, preferably an integer of 2 to 75, and more preferably an integer of 3 to 60.
- P is an integer of 3 to 10, preferably an integer of 4 to 8, and more preferably an integer of 4 to 6.
- the polyoxyalkylene compound (A) is a mixture of the polyoxyalkylene alkyl compound (A1) represented by the general formula (1) and the polyoxyalkylene alkyl compound (A2) represented by the general formula (2)
- the content of the polyoxyalkylene alkyl compound (A1) represented by the formula (1) is preferably 0.1 to 90% by weight, more preferably 1 to 85% based on the weight of the polyoxyalkylene compound (A). % By weight, particularly preferably 5 to 80% by weight.
- the content of the polyoxyalkylene alkyl compound (A2) represented by the general formula (2) is preferably 10 to 99.9% by weight, more preferably based on the weight of the polyoxyalkylene compound (A). Is 15 to 99% by weight, particularly preferably 20 to 95% by weight.
- polyoxyalkylene polyol (B) polyoxypropylene polyol (B1) represented by general formula (3), polyoxyethylene polyoxypropylene polyol (B2) represented by general formula (4), general formula ( Polyoxyethylene polyoxypropylene polyol (B3) represented by 5), polyoxyethylene polyoxypropylene polyol (B4) represented by general formula (6), and polyoxyethylene poly represented by general formula (7)
- Preferable examples include at least one selected from the group consisting of oxypropylene polyol (B5).
- R 5 , R 6 , R 7 , R 8 and R 9 are hydroxyl groups or reaction residues of active hydrogen compounds having 1 to 25 carbon atoms
- PO is an oxypropylene group
- EO is an oxyethylene group
- r is an integer from 1 to 10.
- the oxyethylene group and the oxypropylene group are bonded in a block form.
- the reactive residue of an active hydrogen compound having 1 to 25 carbon atoms is a reactive residue obtained by removing active hydrogen from an active hydrogen compound having 1 to 25 carbon atoms Means.
- the active hydrogen-containing compound having 1 to 25 carbon atoms include compounds containing at least one hydroxyl group (—OH), imino group (—NH—), amino group (—NH 2 ) and / or carboxyl group (—COOH). And includes alcohols, amides, amines, carboxylic acids, hydroxycarboxylic acids and aminocarboxylic acids.
- alcohol examples include monool (methanol, butanol, stearyl alcohol, oleyl alcohol and isostearyl alcohol) and polyol (ethylene glycol, propylene glycol, glycerin, diglycerin, tetraglycerin, trimethylolpropane, pentaerythritol, dipentaerythritol, Dihydroxyacetone, fructose, glucose, mannose, galactose, sucrose, lactose, trehalose, etc.).
- monool methanol, butanol, stearyl alcohol, oleyl alcohol and isostearyl alcohol
- polyol ethylene glycol, propylene glycol, glycerin, diglycerin, tetraglycerin, trimethylolpropane, pentaerythritol, dipentaerythritol, Dihydroxyacetone, fructose, glucose, mannose, galactose, sucrose, lacto
- amide examples include monoamide (formic acid amide, propionic acid amide, stearyl amide, etc.), polyamide (malonic acid diamide, ethylene bisoctylamide, etc.) and the like.
- amines examples include monoamines (such as dimethylamine, ethylamine, aniline and stearylamine) and polyamines (such as ethylenediamine, diethylenetriamine and triethylenetetramine).
- carboxylic acids examples include monocarboxylic acids (such as acetic acid, stearic acid, oleic acid, and benzoic acid) and polycarboxylic acids (such as maleic acid and hexanedioic acid).
- monocarboxylic acids such as acetic acid, stearic acid, oleic acid, and benzoic acid
- polycarboxylic acids such as maleic acid and hexanedioic acid
- hydroxycarboxylic acid examples include hydroxyacetic acid, tartaric acid, malic acid, and 12-hydroxystearic acid.
- aminocarboxylic acids examples include glycine, 4-aminobutyric acid, 6-aminohexanoic acid and 12-aminolauric acid.
- Q, s, t, and z are integers of 1 to 100, preferably an integer of 2 to 75, and more preferably an integer of 3 to 60.
- R is an integer of 1 to 10, preferably an integer of 1 to 7, and more preferably an integer of 1 to 5.
- the polyoxypropylene polyol (B1) represented by the general formula (3) and the polyoxyethylene polyoxypropylene polyol (B4) represented by the general formula (6) are preferable.
- the content of the polyoxyalkylene compound (A) is preferably 10 to 99.9% by weight, more preferably 15 to 90%, based on the total weight of the polyoxyalkylene compound (A) and the polyoxyalkylene polyol (B). % By weight, particularly preferably 20 to 80% by weight.
- the content of the polyoxyalkylene polyol (B) is preferably 0.1 to 90% by weight, more preferably 10 to 85%, based on the total weight of the polyoxyalkylene compound (A) and the polyoxyalkylene polyol (B). % By weight, particularly preferably 20 to 80% by weight.
- the additive for a bioethanol fermentation process of the present invention can be obtained by applying a known production method.
- the polyoxyalkylene compound (A) and the polyoxyalkylene polyol (B) can be produced by a known alkylene oxide addition reaction and etherification reaction. And a polyoxyalkylene compound (A) and a polyoxyalkylene polyol (B) are mixed uniformly, and the additive for bioethanol fermentation processes of this invention is obtained.
- the temperature and time for uniform mixing are not particularly limited as long as uniform mixing is possible, but 5 to 60 ° C. and 10 minutes to 5 hours are preferable.
- the mixing device for uniform mixing is not particularly limited, but a blade-type stirrer, a line mixer, or the like can be used.
- a raw material that can be used in the method for producing bioethanol of the present invention at least one selected from the group consisting of a saccharide raw material, a starch raw material, and a woody (or cellulose) raw material can be used.
- Sugar raw materials are food resources rich in carbohydrates, and include sugar cane, molasses, and sugar beet.
- Starch raw materials are food resources rich in starch quality, and examples thereof include corn, sorghum, potato, sweet potato and wheat.
- Woody (or cellulose) raw materials are non-edible food resources that contain a large amount of cellulose, and include wood and waste building materials.
- Wood includes conifers (pine, fir, tsuga, spruce, larch, raditapine, etc.) and broadleaf trees (eucalyptus, poplar, beech, maple, hippopotamus, etc.), as well as kenaf, mitsumata, kouzo, ganpi, mulberry, manila hemp, reed and Bamboo etc. are included. These timbers may be thinned wood, sawn timber, driftwood and pruned wood, and may contain wood branches, roots and leaves.
- Waste building materials include waste wood building materials, waste wood pallets, waste wood packaging materials, and the like.
- a known method can be applied, which includes a pre-saccharification process, a saccharification process, and an ethanol fermentation process.
- fermentation is carried out after adding the bioethanol fermentation process additive to the fermentation broth.
- the amount of additive for the bioethanol fermentation process is not particularly limited, but is preferably about 0.0001 to 5% by weight based on the weight of the fermentation broth.
- the fermentation liquor that has undergone the ethanol fermentation process is subjected to a separation process for separating the produced ethanol.
- a separation process for separating the produced ethanol known methods such as a distillation method and a pervaporation membrane method can be used.
- the ethanol obtained by separation may be used as it is, or may be used after purification by a known method such as distillation.
- part means “part by weight”
- % means “% by weight”.
- Polyoxyalkylene compounds (a11 to a16, a21 to a27) and polyoxyalkylene polyols (b31 to b37, b41 to b43, b51 to b53, b61 to b67 and b71 to b73) synthesized by a known method are shown in Tables 1 to 3. It was shown to. In the table, PO represents oxyethylene and BO represents oxybutylene.
- Example 1 The polyoxyalkylene compound a11 [9 parts] and the polyoxyalkylene compound a21 [1 part] were stirred and uniformly mixed at 30 ° C. for 30 minutes with a blade-type stirrer, and then the polyoxyalkylene polyol b31 [90 parts] was added to this mixture. ] was added and stirred uniformly at 30 ° C. for 1 hour to obtain the additive 1 for bioethanol fermentation process of the present invention.
- Examples 2 to 27 Polyoxyalkylene compound a11 [9 parts], polyoxyalkylene compound a21 [1 part] and polyoxyalkylene polyol b31 [90 parts] were converted into polyoxyalkylene compounds and polyoxyalkylene polyols (type and number of parts) shown in Table 4. Except for the changes, the additives 2 to 27 for the bioethanol fermentation process of the present invention were obtained in the same manner as in Example 1.
- Production efficiency (%) (volume of bioethanol fermentation liquid after 10 minutes) ⁇ 100
- the bioethanol fermentation process additive of the present invention had extremely good production efficiency as compared with a product that did not use the bioethanol fermentation process additive (blank).
- the additive for bioethanol fermentation process of the present invention is suitable as an additive for improving the production efficiency of bioethanol.
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Abstract
Description
本発明の目的は、上記のような問題を解決できる(すなわち、生産効率を向上できる)添加剤を提供することである。
すなわち、本発明のバイオエタノール発酵工程用添加剤の特徴は、グリフィンのHLB値が、0~6の範囲であるポリオキシアルキレンアルキル化合物(A)と、ポリオキシアルキレンポリオール(B)とを含有してなる点を要旨とする。
上記のバイオエタノール発酵工程用添加剤を発酵液に添加して発酵する発酵工程を含む点を要旨とする。
R1O-(AO)m-R2 (1)
R3O-(AO)n-(EO)p-R4 (2)
R5-[-(PO)q-H]r (3)
R6-[-(EO)s-(PO)q-H]r (4)
R7-[-(PO)q-(EO)s-H]r (5)
R8-[-(EO)s-(PO)q-(EO)t-H]r (6)
R9-[-(PO)q-(EO)s-(PO)z-H]r (7)
炭素数1~25の活性水素含有化合物としては、水酸基(-OH)、イミノ基(-NH-)、アミノ基(-NH2)及び/又はカルボキシル基(-COOH)を少なくとも1個含む化合物が含まれ、アルコール、アミド、アミン、カルボン酸、ヒドロキシカルボン酸及びアミノカルボン酸が含まれる。
ポリオキシアルキレン化合物(A)及びポリオキシアルキレンポリオール(B)は、公知のアルキレンオキシド付加反応及びエーテル化反応で製造できる。そして、ポリオキシアルキレン化合物(A)及びポリオキシアルキレンポリオール(B)を均一混合して、本発明のバイオエタノール発酵工程用添加剤が得られる。
糖質原料としては、糖質を多く含む食物資源であり、さとうきび、モラセス及び甜菜等が挙げられる。
エタノール発酵工程において、発酵液に上記のバイオエタノール発酵工程用添加剤を添加してから発酵させる。
バイオエタノール発酵工程用添加剤の添加量は特に限定されないが発酵液の重量に基づいて0.0001~5重量%程度が好ましい。
ポリオキシアルキレン化合物a11[9部]及びポリオキシアルキレン化合物a21[1部]を羽根型撹拌機にて30℃で30分間撹拌して均一混合した後、この混合物にポリオキシアルキレンポリオールb31[90部]を加えて30℃1時間撹拌し均一混合して、本発明のバイオエタノール発酵工程用添加剤1を得た。
ポリオキシアルキレン化合物a11[9部]、ポリオキシアルキレン化合物a21[1部]及びポリオキシアルキレンポリオールb31[90部]を、表4に示すポリオキシアルキレン化合物及びポリオキシアルキレンポリオール(種類及び部数)に変更したこと以外、実施例1と同様にして、本発明のバイオエタノール発酵工程用添加剤2~27を得た。
ラボレベルのバイオエタノール発酵では生産効率が比較できないことから、下記の促進試験を実施した。
市販のさとうきび糖みつ(株式会社丸協農産より購入した。)200部をイオン交換水800部で希釈して作成したバイオエタノール発酵液100mLを内径50mm×高さ350mmのガラス製メスシリンダーに入れ、測定試料(バイオエタノール発酵工程用添加剤)17μLをマイクロシリンジで添加し、デフューザーストーンを液の底部まで挿入して炭酸ガスを500mL/分で通気し、10分後のバイオエタノール発酵液体積(mL)を読み取り、次式から生産効率(%)を算出した。この値が小さいほど、生産で使用される発酵槽が小さくでき、生産効率が良好となる。
生産効率(%)=(10分後のバイオエタノール発酵液体積)÷100
Claims (6)
- グリフィンのHLB値が0~6の範囲であるポリオキシアルキレン化合物(A)と、ポリオキシアルキレンポリオール(B)とを含有してなることを特徴とするバイオエタノール発酵工程用添加剤。
- ポリオキシアルキレン化合物(A)が、一般式(1)で表されるポリオキシアルキレンアルキル化合物(A1)及び一般式(2)で表されるポリオキシアルキレンアルキル化合物(A2)の混合物である請求項1に記載の添加剤。
R1O-(AO)m-R2 (1)
R3O-(AO)n-(EO)p-R4 (2)
R1及びR3は炭素数4~28のアルキル基又はアルケニル基、R2及びR4は水素原子又は炭素数1~24の1価の有機基、AOは炭素数3~18のオキシアルキレン基又は、グリシドール、炭素数4~21のアルキルグリシジルエーテル若しくはアルケニルグリシジルエーテルの反応残基、EOはオキシエチレン基を表し、m及びnは1~100の整数、pは3~10の整数である。 - ポリオキシアルキレンポリオール(B)が、一般式(3)で表されるポリオキシプロピレンポリオール(B1)、一般式(4)で表されるポリオキシエチレンポリオキシプロピレンポリオール(B2)、一般式(5)で表されるポリオキシエチレンポリオキシプロピレンポリオール(B3)、一般式(6)で表されるポリオキシエチレンポリオキシプロピレンポリオール(B4)及び一般式(7)で表されるポリオキシエチレンポリオキシプロピレンポリオール(B5)からなる群より選ばれる少なくとも1種である請求項1又は2に記載の添加剤。
R5-[-(PO)q-H]r (3)
R6-[-(EO)s-(PO)q-H]r (4)
R7-[-(PO)q-(EO)s-H]r (5)
R8-[-(EO)s-(PO)q-(EO)t-H]r (6)
R9-[-(PO)q-(EO)s-(PO)z-H]r (7)
R5、R6、R7、R8及びR9は水酸基又は炭素数1~25の活性水素化合物の反応残基、POはオキシプロピレン基、EOはオキシエチレン基、q、s、t及びzは1~100の整数、rは1~10の整数である。一般式(4)、(5)、(6)及び(7)中のオキシエチレン基とオキシプロピレン基とはブロック状に結合している。 - ポリオキシアルキレン化合物(A)及びポリオキシアルキレンポリオール(B)の合計重量に基づいて、ポリオキシアルキレン化合物(A)の含有量が10~99.9重量%、ポリオキシアルキレンポリオール(B)の含有量が0.1~90重量%である請求項1~3のいずれかに記載の添加剤。
- ポリオキシアルキレン化合物(A)の重量に基づいて、一般式(1)で表されるポリオキシアルキレンアルキル化合物(A1)の含有量が0.1~90重量%、一般式(2)で表されるポリオキシアルキレンアルキル化合物(A2)の含有量が10~99.9重量%である請求項2~4のいずれかに記載の添加剤。
- 糖質原料、でんぷん原料及び木質(又はセルロース)原料からなる群より選ばれる少なくとも1種を原料としてバイオエタノールを製造する方法において、
請求項1~5のいずれかに記載された添加剤を発酵液に添加して発酵する発酵工程を含むことを特徴とするバイオエタノールの製造方法。
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WO2016132760A1 (ja) * | 2015-02-17 | 2016-08-25 | サンノプコ株式会社 | バイオエタノール発酵工程用添加剤及びバイオエタノールの製造方法 |
JP2018143150A (ja) * | 2017-03-03 | 2018-09-20 | サンノプコ株式会社 | バイオエタノール発酵工程用添加剤及びバイオエタノールの製造方法 |
JP2020043836A (ja) * | 2018-09-21 | 2020-03-26 | サンノプコ株式会社 | バイオエタノール発酵工程用添加剤及びバイオエタノールの製造方法 |
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US10087468B2 (en) | 2018-10-02 |
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