JP5938160B2 - 同時糖化発酵による有価物製造方法 - Google Patents
同時糖化発酵による有価物製造方法 Download PDFInfo
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- JP5938160B2 JP5938160B2 JP2009205829A JP2009205829A JP5938160B2 JP 5938160 B2 JP5938160 B2 JP 5938160B2 JP 2009205829 A JP2009205829 A JP 2009205829A JP 2009205829 A JP2009205829 A JP 2009205829A JP 5938160 B2 JP5938160 B2 JP 5938160B2
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- simultaneous saccharification
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- 238000000855 fermentation Methods 0.000 title claims description 104
- 230000004151 fermentation Effects 0.000 title claims description 104
- 238000004519 manufacturing process Methods 0.000 title description 6
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- 238000006243 chemical reaction Methods 0.000 claims description 59
- 244000005700 microbiome Species 0.000 claims description 31
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 29
- 238000000034 method Methods 0.000 claims description 25
- 240000004808 Saccharomyces cerevisiae Species 0.000 claims description 16
- 239000002994 raw material Substances 0.000 claims description 16
- 239000002028 Biomass Substances 0.000 claims description 12
- 108010059892 Cellulase Proteins 0.000 claims description 9
- 235000015097 nutrients Nutrition 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 2
- 108090000790 Enzymes Proteins 0.000 description 13
- 102000004190 Enzymes Human genes 0.000 description 13
- 235000014680 Saccharomyces cerevisiae Nutrition 0.000 description 13
- 229940088598 enzyme Drugs 0.000 description 13
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 7
- 239000008103 glucose Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 238000000926 separation method Methods 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- 238000011282 treatment Methods 0.000 description 6
- 229940106157 cellulase Drugs 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 229920002678 cellulose Polymers 0.000 description 4
- 239000001913 cellulose Substances 0.000 description 4
- 239000000306 component Substances 0.000 description 3
- 229920005610 lignin Polymers 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 230000035484 reaction time Effects 0.000 description 3
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- 239000000126 substance Substances 0.000 description 3
- 229920002488 Hemicellulose Polymers 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
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- 150000002402 hexoses Chemical class 0.000 description 2
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- 235000009566 rice Nutrition 0.000 description 2
- 239000011343 solid material Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 108010084185 Cellulases Proteins 0.000 description 1
- 102000005575 Cellulases Human genes 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 240000009088 Fragaria x ananassa Species 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 238000010306 acid treatment Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 1
- 239000002551 biofuel Substances 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
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- 239000012295 chemical reaction liquid Substances 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
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- 150000002772 monosaccharides Chemical class 0.000 description 1
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Classifications
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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
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- Preparation Of Compounds By Using Micro-Organisms (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
- Processing Of Solid Wastes (AREA)
Description
(1)発酵用微生物の新規投入を減量もしくは削減することができる。
総反応量を100gとし、反応槽中に原料であるOA紙が15重量%になるように水を用いて調整し、セルラーゼ酵素(ジェネンコア社製アクセララーゼ)をOA紙1g当たり15FPU加えた。以下の実施例における同時糖化発酵についても同様にして原料を調整した。さらにそれぞれに同時糖化発酵用微生物として酵母(サッカロマイセスセルビジエ)を反応槽当たり湿重量で1g加え、38℃で3日間反応させることにより同時糖化発酵後の醪を得た(表1)。
実施例1と同様の原料を用い、残渣を含む同時糖化発酵反応液の調整を行った。反応容量を100gで行い、反応槽中の原料であるOA紙が15重量%になるように水で調整し、セルラーゼ酵素(ジェネンコア社製アクセララーゼ)を紙1g当たり10FPU加え、同時糖化発酵用微生物として酵母(サッカロマイセスセルビジエ)を湿重量で1g加え38℃で3日間反応させることにより同時糖化発酵後の醪を得た(表4)。
実施例1の対照区Aの同時糖化発酵反応液を、反応終了後温度を41℃に上昇させ、6時間インキュベートした場合としない場合で雑菌汚染の度合いを調べた(表6)。
実施例2の実施区Dを対照区Dとし、表4で示した醪の残りを、増殖に適した温度である30℃で6時間インキュベートした場合(実施区E)において、同時糖化発酵反応によるエタノール生成能を比較した。醪の返送量は1/10量とした。この結果を図4に示す。温度低下処理をすることで反応液中に残存する発酵用微生物の活性が向上したと考えられる。
Claims (7)
- セルロース系バイオマスのみを原料とし、セルラーゼ酵素および酵母による同時糖化発酵方法において、同時糖化発酵反応を行った後に生じたままのエタノールを含む醪のうち1/5以上にあたる量を、次に行う、前回と同一の原料でかつ同一の条件下での同時糖化発酵反応に、次に行う同時糖化発酵反応に供給されるべき酵母に代えて加えることを特徴とする同時糖化発酵方法。
- 同時糖化発酵反応を行った後に生じたままのエタノールを含む醪のうち1/2以上にあたる量を、次に行う同時糖化発酵反応に供給されるべき酵母に代えて、これを次に行う同時糖化発酵反応に加える、請求項1に記載の同時糖化発酵方法。
- 前記次に行う同時糖化発酵反応に供給される醪は、次に行う同時糖化発酵反応に使用される前に、微生物が成育できる限界温度以下まで昇温させられる、請求項1または2に記載の同時糖化発酵方法。
- 前記昇温度は、同時糖化発酵反応の温度よりも2℃以上高い温度である、請求項3に記載の同時糖化発酵方法。
- 前記次に行う同時糖化発酵反応に供給される醪は、同時糖化発酵反応終了時の温度よりも低い温度に降温させた後に、次の同時糖化発酵反応に使用される、請求項1または2に記載の同時糖化発酵方法。
- 前記降温は、同時糖化発酵反応終了時の温度よりも2℃以上低い温度である、請求項5に記載の同時糖化発酵方法。
- 前記降温の際に発酵用微生物が要求する栄養塩を加える、請求項5に記載の同時糖化発酵方法。
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JP6467566B2 (ja) * | 2016-10-20 | 2019-02-13 | 株式会社ジェイコム | バイオエタノールの製造方法と製造装置 |
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US4009075A (en) * | 1975-08-22 | 1977-02-22 | Bio-Industries, Inc. | Process for making alcohol from cellulosic material using plural ferments |
JPS6460370A (en) * | 1987-05-27 | 1989-03-07 | Sankyo Co | High-temperature culture of yeast |
JP2001299327A (ja) * | 2000-04-28 | 2001-10-30 | Mitsubishi Chemical Engineering Corp | 回分式発酵プラントにおける温度制御方法 |
JP4196276B2 (ja) * | 2003-07-24 | 2008-12-17 | 豊 土屋 | C/n比率管理による生ゴミの微生物処理方法 |
JP3897750B2 (ja) * | 2003-10-31 | 2007-03-28 | 宣明 熊澤 | 生ゴミの分解菌、微生物製剤、及び分解処理方法 |
JP2005246365A (ja) * | 2004-03-06 | 2005-09-15 | System Kaihatsu Kk | 生ゴミ加熱攪拌処理装置 |
JP2006122879A (ja) * | 2004-11-01 | 2006-05-18 | Yasuo Morikawa | メタンガスを生産する方法及びその装置、ならびに、メタンガスを生産する方法を利用して電気を造り出す方法 |
JP2008104452A (ja) * | 2006-09-29 | 2008-05-08 | Kumamoto Univ | アルコール生産システムおよびアルコール生産方法 |
JP4854568B2 (ja) * | 2007-03-30 | 2012-01-18 | 三井造船株式会社 | アルコール生産方法 |
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