WO2020079210A1 - Procédé de préparation de molécules organiques par fermentation anaérobie - Google Patents
Procédé de préparation de molécules organiques par fermentation anaérobie Download PDFInfo
- Publication number
- WO2020079210A1 WO2020079210A1 PCT/EP2019/078329 EP2019078329W WO2020079210A1 WO 2020079210 A1 WO2020079210 A1 WO 2020079210A1 EP 2019078329 W EP2019078329 W EP 2019078329W WO 2020079210 A1 WO2020079210 A1 WO 2020079210A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fermentation
- organic molecules
- juice
- recovery
- fermentation juice
- Prior art date
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Classifications
-
- 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
- C12P7/40—Preparation of oxygen-containing organic compounds containing a carboxyl group including Peroxycarboxylic acids
- C12P7/52—Propionic acid; Butyric acids
-
- 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
- C12P39/00—Processes involving microorganisms of different genera in the same process, simultaneously
-
- 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
- C12P7/40—Preparation of oxygen-containing organic compounds containing a carboxyl group including Peroxycarboxylic acids
- C12P7/54—Acetic acid
Definitions
- the present invention relates to the preparation of organic molecules by anaerobic fermentation of biomass, in which the fermentation juice is aerated before the step of recovering organic molecules.
- the step of isolating organic molecules from the fermentation juice is generally preceded by a concentration of the fermentation juice by evaporation of the water.
- this evaporation step can cause part of the organic molecules with the evaporation of water and a loss in final yield.
- the invention lies in a simple step which consists in aerating the fermentation juice before its concentration.
- the invention therefore relates to a process for the preparation of organic molecules comprising the steps a) of anaerobic fermentation of a biomass in an aqueous fermentation medium, b) of recovery of a fermentation juice from the fermentation must and c) of recovery of organic molecules from the fermentation juice, in which the fermentation juice is aerated before step c) of recovery of the molecules.
- step c) of recovery of the organic molecules comprises a step c1) of concentration of the fermentation juice which precedes a step c2) of recovery of the organic molecules from the concentrated fermentation juice.
- the fermentation process aims to produce organic acids, more particularly volatile organic acids, such as acetic, propionic, butyric, isobutyric, valeric, isovaleric, caproic acids. and their mixtures.
- organic acids more particularly volatile organic acids, such as acetic, propionic, butyric, isobutyric, valeric, isovaleric, caproic acids. and their mixtures.
- the methods for preparing organic molecules by anaerobic fermentation include the steps a) of anaerobic fermentation of a biomass in an aqueous fermentation medium, b) of recovering a fermentation juice from the fermentation wort and recovering organic molecules from the fermentation juice, in which the fermentation juice is aerated before step c) of recovery of the molecules.
- the invention relates to an improvement of these anaerobic fermentation processes which consists in aerating the fermentation juice before the recovery of these organic molecules.
- the organic molecules produced in these anaerobic fermentation processes are in particular alcohols, organic acids, and in particular volatile organic acids, derivatives of these organic acids such as polyhydroxyalkanoates or esters, or even amino acids.
- the fermentation process aims to produce organic acids, more particularly volatile organic acids, such as acetic, propionic, butyric, isobutyric, valeric, isovaleric, caproic acids and their mixtures.
- organic acids more particularly volatile organic acids, such as acetic, propionic, butyric, isobutyric, valeric, isovaleric, caproic acids and their mixtures.
- the biomass comprises any biomass capable of being fermented in anaerobic mode, comprising the nutrients necessary for the growth of anaerobic microorganisms and the production of the chosen organic molecules.
- the various exploitable biomasses are well known to those skilled in the art according to the anaerobic fermentation processes used. These fermentable biomasses are, for example, by-products from agriculture or the food industry, such as from cereals, potato sorting deviations, slaughterhouse waste, brewer's dregs, vinasse or livestock effluents. All methanisable substrates are also examples of fermentable biomass.
- the conventional fermentation substrates used in biotechnology or in the food industry such as sugars such as sucrose, glucose, fructose or alcohols such as glycerol are also examples of fermentable biomass.
- the biomass is molasses and / or beet pulp.
- the anaerobic fermentation process is carried out with molasses and / or pulp as a carbon source, for the preparation of organic acids, in particular volatile organic acids as identified above.
- the invention consists in aerating the fermentation juice before the recovery of the organic molecules and the skilled person will be able to determine the most appropriate means and conditions for aeration of the fermentation juice according to the volume of juice to be treated and the molecules organic to recover.
- aeration can be carried out by introducing air or bubbling air through the fermentation juice, or even by simply stirring the fermentation juice in contact with the air by any suitable means such as recirculation pumps. , spargers, venturi mixers etc.
- aeration is obtained by stirring the fermentation juice.
- the fermentation juice coming from an anaerobic fermentation stage comprises large amounts of dissolved carbon dioxide. Aeration, by eliminating the carbon dioxide dissolved in the fermentation juice, may increase the pH.
- the aeration is maintained until a fermentation juice with a pH of at least 7, preferably at least 8, is obtained.
- Ventilation is maintained for at least 15 minutes, up to 30 minutes or more.
- the aeration time will essentially depend on the pH of the fermentation juice recovered at the end of fermentation, the person skilled in the art knowing how to determine the aeration time as a function of this pH, but also on the organic molecules to be recovered and on the methods of recovering said aids. organic molecules.
- organic molecules are organic acids, more particularly volatile organic acids such as acetic, propionic, butyric, isobutyric, valeric, isovaleric, caproic acids and their mixtures.
- Stage a) of fermentation will generally be carried out in mesophilic and anaerobic mode in a stirred fermenter.
- the culture method can be continuous or discontinuous.
- the biomass, in particular the molasses or the pulp used for fermentation are preferably residues from the sugar industry, in particular from the processing of sugar cane or sugar beet, preferably sugar beet pulp. or sugar beet molasses.
- Molasses and pulp can be used together in the same fermenter, in all proportions, or separately in different fermenters.
- pulp and / or molasses are the only sources of carbon for anaerobic fermentation.
- Anaerobic fermentation is generally carried out with microorganisms alone or in mixtures. These can be lines and mixtures of microorganisms seeded in the biomass for the start of fermentation. It may also be the native flora of the biomass which grows under the conditions of anaerobic culture.
- the aqueous medium is water.
- the aqueous fermentation medium consists of water and vinasse mixed in all proportions.
- the aqueous fermentation medium can be supplemented with vitamins, yeast extract or any other adjuvants allowing optimization of the fermentation performance.
- step b recovery is done at the end of fermentation according to standard filtration techniques to eliminate potential solid residues present in the fermentation must, for example by centrifugation, centrifugal decantation, etc.
- the aeration step is carried out on a liquid medium after fermentation where the state of the art describes the influence of aeration on the fermentation conditions, equivalent to step a) of the process according to the invention , upstream of stage b) of recovery of the fermentation juice (Wei & al., 2014; EP 1 892 300; Cheng & al., 2004; Yimalztekin & al., 2013; Botheju & al., 201 1) .
- Step c) of recovery of organic molecules is generally done by extraction, precipitation and / or distillation.
- this step c) of recovery of the organic molecules comprises a step c1) of concentration of the fermentation juice which precedes a step c2) of recovery of the organic molecules from the concentrated fermentation juice.
- the concentration step c1) is carried out according to the usual methods of evaporation, known to those skilled in the art.
- Step c2) of recovery of organic molecules is advantageously carried out on the concentrated fermentation juice after elimination of at least part of the water, and if necessary with the addition of an organic solvent to promote the partition of different molecules.
- Mention will in particular be made of the extraction methods described in applications WO 2015/036683, WO 2014/100424.
- a person skilled in the art knows and will know how to choose the means best suited to the organic molecules to be isolated, this step not being limiting with regard to the invention which first relates to step c1) of concentration.
- step c2) of recovery of the molecules organic is preceded by an acidification step by adding a strong acid, in particular sulfuric acid, to a pH below 5, which can range up to 3 or less.
- a strong acid in particular sulfuric acid
- This addition of a strong acid is particularly suitable before isolating the organic acids, and more particularly the volatile organic acids.
- the fermentation juice can come from a single fermentation must or from a mixture of several fermentation juices from several fermentation must, where appropriate after concentration.
- each fermentation must may come independently from the fermentation of pulp or molasses or from a mixture of pulp and molasses.
- Table 1 reports the summary of the results of rising pH by aeration at different times from various juices from anaerobic fermentation of molasses-type agro-industrial by-products.
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- Organic Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Zoology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Microbiology (AREA)
- General Chemical & Material Sciences (AREA)
- Biotechnology (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Bioinformatics & Cheminformatics (AREA)
- General Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA3116801A CA3116801A1 (fr) | 2018-10-19 | 2019-10-18 | Procede de preparation de molecules organiques par fermentation anaerobie |
EP19786620.5A EP3867392A1 (fr) | 2018-10-19 | 2019-10-18 | Procédé de préparation de molécules organiques par fermentation anaérobie |
BR112021007179-2A BR112021007179A2 (pt) | 2018-10-19 | 2019-10-18 | método para preparar moléculas orgânicas por fermentação anaeróbia |
US17/286,669 US11795482B2 (en) | 2018-10-19 | 2019-10-18 | Method for preparing organic molecules by anaerobic fermentation |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1859671 | 2018-10-19 | ||
FR1859671A FR3087449A1 (fr) | 2018-10-19 | 2018-10-19 | Procede de preparation de molecules organiques par fermentation anaerobie |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2020079210A1 true WO2020079210A1 (fr) | 2020-04-23 |
Family
ID=65494359
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2019/078329 WO2020079210A1 (fr) | 2018-10-19 | 2019-10-18 | Procédé de préparation de molécules organiques par fermentation anaérobie |
Country Status (6)
Country | Link |
---|---|
US (1) | US11795482B2 (fr) |
EP (1) | EP3867392A1 (fr) |
BR (1) | BR112021007179A2 (fr) |
CA (1) | CA3116801A1 (fr) |
FR (1) | FR3087449A1 (fr) |
WO (1) | WO2020079210A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4202051A1 (fr) * | 2021-12-23 | 2023-06-28 | Fundación Centro Gallego de Investigaciones del Agua | Procédé et système d'obtention d'acides gras volatils de grande pureté |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1892300A1 (fr) | 2005-06-03 | 2008-02-27 | Tsinghua University | Procede permettant de preparer le propanediol-1,3 en se servant de la glycerine en tant que sous-produit du carburant diesel biologique |
WO2010047815A2 (fr) | 2008-10-21 | 2010-04-29 | Blue Marble Energy Corporation | Systèmes et procédés de digestion anaérobie et de collecte de produits |
WO2014100424A1 (fr) | 2012-12-21 | 2014-06-26 | Ee-Terrabon Biofuels Llc | Systèmes et procédés pour obtenir des produits à partir d'une biomasse |
WO2015036683A1 (fr) | 2013-09-11 | 2015-03-19 | Afyren | Procédé de préservation du potentiel fermentescible d'un substrat organique et installation correspondante |
WO2016012701A1 (fr) | 2014-07-25 | 2016-01-28 | Afyren | Procédé de production de molécules organiques à partir de biomasse fermentescible |
WO2016135397A1 (fr) | 2015-02-27 | 2016-09-01 | Afyren | Procede de production d'acides amines a partir de precurseurs obtenus par fermentation anaerobie a partir de biomasse fermentescible |
WO2016135396A1 (fr) | 2015-02-27 | 2016-09-01 | Afyren | Procede de production de polyhydroxyalcanoates a partir de precurseurs obtenus par fermentation anaerobie a partir de biomasse fermentescible |
WO2017013335A1 (fr) | 2015-07-23 | 2017-01-26 | Afyren | Procédé d'extraction d'acides carboxyliques produits par fermentation anaérobie a partir de biomasse fermentescible |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2632486C1 (ru) | 2008-04-30 | 2017-10-05 | Ксилеко, Инк. | Переработка биомассы |
EA032496B1 (ru) | 2012-11-09 | 2019-06-28 | ДСМ АйПи АССЕТС Б.В. | Способ ферментативного гидролиза лигноцеллюлозного материала и ферментации сахаров |
-
2018
- 2018-10-19 FR FR1859671A patent/FR3087449A1/fr active Pending
-
2019
- 2019-10-18 CA CA3116801A patent/CA3116801A1/fr active Pending
- 2019-10-18 BR BR112021007179-2A patent/BR112021007179A2/pt unknown
- 2019-10-18 US US17/286,669 patent/US11795482B2/en active Active
- 2019-10-18 EP EP19786620.5A patent/EP3867392A1/fr active Pending
- 2019-10-18 WO PCT/EP2019/078329 patent/WO2020079210A1/fr active Application Filing
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
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EP1892300A1 (fr) | 2005-06-03 | 2008-02-27 | Tsinghua University | Procede permettant de preparer le propanediol-1,3 en se servant de la glycerine en tant que sous-produit du carburant diesel biologique |
WO2010047815A2 (fr) | 2008-10-21 | 2010-04-29 | Blue Marble Energy Corporation | Systèmes et procédés de digestion anaérobie et de collecte de produits |
WO2014100424A1 (fr) | 2012-12-21 | 2014-06-26 | Ee-Terrabon Biofuels Llc | Systèmes et procédés pour obtenir des produits à partir d'une biomasse |
WO2015036683A1 (fr) | 2013-09-11 | 2015-03-19 | Afyren | Procédé de préservation du potentiel fermentescible d'un substrat organique et installation correspondante |
WO2016012701A1 (fr) | 2014-07-25 | 2016-01-28 | Afyren | Procédé de production de molécules organiques à partir de biomasse fermentescible |
WO2016135397A1 (fr) | 2015-02-27 | 2016-09-01 | Afyren | Procede de production d'acides amines a partir de precurseurs obtenus par fermentation anaerobie a partir de biomasse fermentescible |
WO2016135396A1 (fr) | 2015-02-27 | 2016-09-01 | Afyren | Procede de production de polyhydroxyalcanoates a partir de precurseurs obtenus par fermentation anaerobie a partir de biomasse fermentescible |
WO2017013335A1 (fr) | 2015-07-23 | 2017-01-26 | Afyren | Procédé d'extraction d'acides carboxyliques produits par fermentation anaérobie a partir de biomasse fermentescible |
Non-Patent Citations (8)
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BOTHEJU, THE OPEN WASTE MANAGEMENT JOURNA, vol. 4, no. 1, 2011, pages 1 - 19 |
CHENG K-K ET AL: "1,3-Propanediol production by Klebsiella pneumoniae under different aeration strategies", BIOTECHNOLOGY LETTERS, KLUWER ACADEMIC PUBLISHERS, DORDRECHT, vol. 26, no. 11, 1 June 2004 (2004-06-01), pages 911 - 915, XP002607992, ISSN: 0141-5492 * |
CHENG, BIOTECHNOLOGY LETTERS, vol. 26, no. 11, 2004, pages 911 - 915 |
DESHAI BOTHEJU ET AL: "Oxygen Effects in Anaerobic Digestion - A Review", THE OPEN WASTE MANAGEMENT JOURNAL, vol. 4, no. 1, 14 April 2011 (2011-04-14), pages 1 - 19, XP055119737, ISSN: 1876-4002, DOI: 10.2174/1876400201104010001 * |
LIM JUN WEI ET AL: "Microbial community structure reveals how microaeration improves fermentation during anaerobic co-digestion of brown water and food waste", BIORESOURCE TECHNOLOGY, ELSEVIER, AMSTERDAM, NL, vol. 171, 19 August 2014 (2014-08-19), pages 132 - 138, XP029067367, ISSN: 0960-8524, DOI: 10.1016/J.BIORTECH.2014.08.050 * |
MURAT YILMAZTEKIN ET AL: "Effects of Fermentation Temperature and Aeration on Production of Natural Isoamyl Acetate by Williopsis saturnus var. saturnus", BIOMED RESEARCH INTERNATIONAL, vol. 2013, 1 January 2013 (2013-01-01), pages 1 - 6, XP055597192, ISSN: 2314-6133, DOI: 10.1155/2013/870802 * |
WEI, BIORESOURCE TECHNOLOGY, vol. 171, 2014, pages 132 - 138 |
YIMALZTEKIN, BIOMED RESEARCH INTERNATIONAL, vol. 2013, 2013, pages 1 - 6 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4202051A1 (fr) * | 2021-12-23 | 2023-06-28 | Fundación Centro Gallego de Investigaciones del Agua | Procédé et système d'obtention d'acides gras volatils de grande pureté |
Also Published As
Publication number | Publication date |
---|---|
US11795482B2 (en) | 2023-10-24 |
US20220243231A1 (en) | 2022-08-04 |
CA3116801A1 (fr) | 2020-04-23 |
EP3867392A1 (fr) | 2021-08-25 |
BR112021007179A2 (pt) | 2021-07-20 |
FR3087449A1 (fr) | 2020-04-24 |
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