EP4267546A1 - Granulés d'acide férulique et leur procédé de préparation - Google Patents
Granulés d'acide férulique et leur procédé de préparationInfo
- Publication number
- EP4267546A1 EP4267546A1 EP21843933.9A EP21843933A EP4267546A1 EP 4267546 A1 EP4267546 A1 EP 4267546A1 EP 21843933 A EP21843933 A EP 21843933A EP 4267546 A1 EP4267546 A1 EP 4267546A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ferulic acid
- acid
- equal
- ferulic
- granules
- 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.)
- Withdrawn
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C59/00—Compounds having carboxyl groups bound to acyclic carbon atoms and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups
- C07C59/40—Unsaturated compounds
- C07C59/58—Unsaturated compounds containing ether groups, groups, groups, or groups
- C07C59/64—Unsaturated compounds containing ether groups, groups, groups, or groups containing six-membered aromatic rings
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/58—Preparation of carboxylic acid halides
- C07C51/64—Separation; Purification; Stabilisation; Use of additives
-
- 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
- C12P7/22—Preparation of oxygen-containing organic compounds containing a hydroxy group aromatic
Definitions
- the present invention relates to ferulic acid granules and their method of preparation.
- the invention finds applications in particular in the field of food, cosmetics and flavorings.
- Ferulic acid or 3-(4-hydroxy-3-methoxyphenyl)prop-2-enoic acid is an antioxidant naturally present in plants and in particular cereals such as rice, corn, wheat or oats. It can also be present in solid or liquid co-products from the agri-food industry, in particular from the oilseed, cereal, sugar or alcohol sectors.
- Ferulic acid can be prepared by chemical synthesis, or by a biotechnological route involving microbial fermentation or plant tissue culture. It can also be obtained by a route qualified as natural and/or biosourced in which a plant material is treated in order to extract ferulic acid from said plant material. For example, it can be extracted from by-products of the food industry or from grains, for example according to the process described in WO2014/187784.
- Ferulic acid is used in various fields ranging from cosmetics to food, in particular in the preparation of a flavoring substance, vanillin.
- the document WO2004/110975 describes the treatment of the cooking juice with lime from the corn grain leading to an effluent called nejayote containing ferulic acid, the treatment comprising a filtration, an acidification, the adsorption of the ferulic acid on a matrix then washing the matrix and eluting with an organic solvent.
- the recovered ferulic acid then undergoes an additional recrystallization step.
- the document CN104628553 describes the purification of an alkaline solution of ferulic acid in which the solution undergoes successive passages in membrane separation systems which can cause losses of ferulic acid and a reduction in the yield of ferulic acid.
- the permeate then obtained is acidified in order to precipitate the ferulic acid which is recovered by centrifugation or filtration.
- the ferulic acid obtained undergoes an additional step of purification on activated charcoal and purification by recrystallization.
- Document EP3612511 describes the extraction and purification of ferulic acid from agricultural biomass. Purification of extracted ferulic acid can be achieved by extraction methods using an organic solvent.
- One of the objectives of the present invention is to provide a new presentation of ferulic acid as well as a method of preparation making it possible to overcome the aforementioned drawbacks.
- the present invention refers to ferulic acid granules having a particle size expressed by the median diameter (dso) greater than or equal to 400 ⁇ m and a dio of between 150 ⁇ m and 250 ⁇ m.
- the present invention also refers to granules of trans-ferulic acid having a particle size expressed by the median diameter (dso) greater than or equal to 400 ⁇ m.
- a third aspect of the present invention relates to a process for the preparation of ferulic acid granules by precipitation.
- the present invention also relates to the use of ferulic acid according to the present invention in cosmetics, pharmacy or food.
- the present invention refers to a process for the preparation of vanillin by fermentation of ferulic acid according to the present invention.
- Figure 1 shows a photo, taken with a Leica M420 microscope and magnified 25 times, of ferulic acid granules according to the present invention.
- Figure 2 is a photo of ferulic acid (Leica M420 microscope and magnified 23.9 times) according to example 2 (comparative).
- Figure 2 is a photo of ferulic acid in powder form (Leica M420 microscope and magnified 25 times).
- the present invention refers to ferulic acid granules having a particle size expressed by the median diameter (dso) greater than or equal to 400 ⁇ m and a dio of between 150 ⁇ m and 250 ⁇ m.
- the granules according to the present invention have particular physico-chemical properties, presented below.
- the ferulic acid according to the present invention can be of natural or biosourced origin.
- Ferulic acid of natural origin corresponds to the following formula, the double bond of ferulic acid of natural origin is in the trans position:
- Ferulic acid when biobased, can be referred to as a “natural product”. According to regulations in Europe and the United States, this means that the product is obtained by physical, enzymatic or microbiological processes and from plant or animal materials.
- bio-based ferulic acid we mean ferulic acid entirely or significantly of vegetable or marine origin.
- bio-based ferulic acid can be derived from agricultural by-products, plants, seeds, forestry materials or algae.
- bio-based ferulic acid is of vegetable origin. Thus, biobased ferulic acid is not the result of chemical synthesis.
- the present invention also refers to trans-ferulic acid granules having a particle size expressed by the median diameter (dso) greater than or equal to 400 ⁇ m.
- the ferulic acid granules according to the present invention are in the form of beads, these beads are essentially spherical in shape, preferably the particle size distribution is monomodal.
- the median diameter (dso) of the ferulic acid granules is greater than or equal to 400 ⁇ m.
- the median diameter of the ferulic acid granules is greater than or equal to 500 ⁇ m, preferably greater than or equal to 550 ⁇ m, and very preferably greater than or equal to 600 ⁇ m.
- the median diameter of the ferulic acid granules is less than or equal to 2.0 mm, preferably less than or equal to 1.5 mm, and very preferably less than or equal to 1.0 mm.
- the median diameter of the ferulic acid granules may be less than or equal to 950 ⁇ m, preferably less than or equal to 900 ⁇ m, and very preferably less than or equal to 800 ⁇ m.
- the median diameter is defined as being such that 50% by weight of the particles have a diameter greater or less than the median diameter.
- FIG. 1 represents a photograph taken under an optical microscope which illustrates the bead-like morphology of the ferulic acid obtained according to the invention. A uniform particle size distribution is observed on the product obtained.
- the ferulic acid granules have a dio of between 150 uni and 250 ⁇ m.
- the dio is defined as being such that 10% by weight of the particles have a diameter less than or equal to the value of said dio. By way of illustration, if the dio is 200 ⁇ m, this means that 10% of the particles have a size less than or equal to 200 ⁇ m.
- the ferulic acid granules according to the present invention have a percentage by volume of fine particles having a diameter less than or equal to 150 ⁇ m less than or equal to 3.0%, preferably less than or equal to 2.0%.
- the ferulic acid granules according to the present invention have a volume percentage of fine particles having a diameter less than or equal to 100 ⁇ m less than or equal to 2.0%, preferably less than or equal to 1.0%.
- Ferulic acid has a minimum ignition energy of less than 3 mJ.
- the minimum ignition energy is measured as the minimum energy which must be supplied to the mixture, in the form of a flame or a spark, to cause ignition
- the very low content of fine particles (less than 150 ⁇ m and less than 100 ⁇ m) of the ferulic acid granules according to the present invention is particularly advantageous, reducing the risk of explosion.
- the ferulic acid granules according to the present invention thus improve the handling and storage conditions of ferulic acid compared to ferulic acid in powder form.
- the content of ferulic acid, preferably trans-ferulic acid, in the ferulic acid granules according to the present invention is greater than or equal to 75% by weight, preferably greater than or equal to 80% by weight , very preferably greater than or equal to 90% by weight, even more preferably greater than or equal to 95% by weight and very preferably greater than or equal to 99% by weight.
- the granules according to the present invention have a physical form which gives them good resistance to attrition, in particular during transport and storage operations. These granules have good flowability properties, which is particularly advantageous during handling operations. These ferulic acid granules also have good dissolution properties, in particular comparable to those of ferulic acid in powder form. Granules can be used in the same applications as ferulic acid in powder form.
- the ferulic acid granules according to the present invention can in particular be used in a process for the preparation of vanillin, in particular by fermentation. In particular, the yields of the fermentation process are not negatively affected by the use of said granules.
- the present invention relates to a process for the preparation of ferulic acid granules by precipitation of a solution of ferulic acid.
- the term "precipitation” refers to a process of conversion by chemical reaction of a chemical substance into a solid from a solution.
- the solid formed is the precipitate.
- a chemical agent is used to cause the formation of the precipitate.
- the process comprises a preliminary step to precipitation to allow the preparation of a solution of ferulic acid.
- a powder of ferulic acid is dissolved.
- the ferulic acid powder is placed in aqueous solution.
- the content of ferulic acid, preferably of trans-ferulic acid, in the ferulic acid powder used is greater than or equal to 75% by weight, preferably greater than or equal to 80% by weight, very preferably greater than or equal to 82% by weight.
- the pH of the ferulic acid solution obtained at the end of the preliminary stage is greater than or equal to 7.
- the ferulic acid in solution can be in the form of a salt of the acid ferulic, such as sodium or potassium ferulate in particular
- the preliminary step is carried out at a temperature of between 25° C. and 100° C., preferably between 40° C. and 60° C., even more preferably between 45° C. °C and 55°C, for example at 50°C.
- the concentration of ferulic acid or the corresponding salt is generally greater than or equal to 2% by weight, preferably greater than or equal to 3% by weight, very preferably greater than or equal to 4% by weight. In general, the concentration of ferulic acid or the corresponding salt is less than or equal to 15% by weight relative to the total weight of the solution, preferably less than or equal to 13% by weight, very preferably less than or equal to 10% by weight ..
- the method of the present invention comprises a step of precipitation of the ferulic acid solution obtained at the end of the preliminary step. Generally, the precipitation step is carried out by adding at least one mineral acid, preferably a very water-soluble mineral acid.
- At least one mineral acid is chosen from acids having a pKa less than or equal to 2, more preferably chosen from the group consisting of hydrochloric acid, sulfuric acid, hydrobromic acid, perchloric acid, p-toluenesulfonic acid, nitric acid or chloric acid.
- the at least one mineral acid is added during the precipitation step to the ferulic acid solution so as to reach a pH of between 1 and 5, preferably between 2 and 3. addition of the mineral acid must be rapid. Generally, the at least one mineral acid is added with a rate greater than or equal to 1 mol [H + ]/h/mol of initial ferulic acid. By way of example, in the case where sulfuric acid is used, this is added with a flow rate which may be 0.5 mol [H2SO4]/hour/mol of initial ferulic acid. Surprisingly, it has been found that by operating with a lower flow rate, the agglomeration to form the ferulic acid granules is lower. The granules obtained have a smaller particle size.
- the precipitation step is carried out at a temperature between 25°C and 55°C.
- the temperature may be maintained for the duration of the precipitation or may vary during the precipitation.
- the precipitation step is carried out at atmospheric pressure.
- the precipitation is generally carried out with stirring.
- the process of the present invention allows the preparation of ferulic acid granules having the properties described above.
- the process of the present invention allows the preparation of ferulic acid granules whose particle size represented by the median diameter is greater than or equal to 400 ⁇ m.
- the content of ferulic acid, preferably of trans-ferulic acid, in the ferulic acid granules according to the present invention is greater than or equal to 75% by weight, preferably greater than or equal to 80% by weight, very preferably greater than or equal to 82% by weight.
- the ferulic acid content in the ferulic acid granules is higher than the ferulic acid content in the ferulic acid powder used in the precipitation process.
- the precipitation process is also likely to allow purification of the ferulic acid used.
- the present invention also refers to granules of ferulic acid which can be obtained according to the process of the present invention.
- the present invention refers to the use of ferulic acid according to the present invention or capable of being obtained according to the process of the present invention in cosmetics, pharmacy or food.
- the cosmetic, pharmaceutical or food products using these ferulic acid granules have properties comparable to products using ferulic acid powder.
- the present invention also refers to a method for preparing vanillin, in particular natural vanillin, by fermentation of ferulic acid according to the present invention or capable of being obtained according to the method of the present invention.
- Example 1 (according to the invention):
- a 7.7% by weight sodium ferulate solution is heated to 50° C. with stirring.
- the pH of the solution is about 7.
- An aqueous solution of sulfuric acid (at 32% by weight) is added with a flow rate of 1 mol[H + ]/h/mol of initial ferulic acid so as to reach a pH of between 2 and 3.
- the acid ferulic precipitates, and the precipitate is filtered off at room temperature, washed with water and dried at 45°C.
- the ferulic acid obtained has the characteristics shown in Table 1.
- a 7.7% by weight sodium ferulate solution is heated to 50° C. with stirring.
- the pH of the solution is about 7.
- aqueous solution of sulfuric acid (at 32% by weight) is added at a rate of 0.62 mol[H + ]/h/mol of initial ferulic acid so as to reach a pH of between 2 and 3.
- ferulic acid precipitates, and the precipitate is filtered off at room temperature, washed with water and dried at 45°C.
- the ferulic acid obtained has the characteristics shown in Table 1.
- the ferulic acid obtained according to the process of the invention has improved properties compared to ferulic acid powder ( Figure 3).
- the ferulic acid according to the invention has a very different morphology from the powder or from the ferulic acid according to example 2, in particular only very few fine particles are observed. ( Figures 1 to 3)
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Zoology (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Biotechnology (AREA)
- General Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Microbiology (AREA)
- General Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Seasonings (AREA)
- Coloring Foods And Improving Nutritive Qualities (AREA)
- Cosmetics (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2013918A FR3118033B1 (fr) | 2020-12-22 | 2020-12-22 | Granulés d’acide férulique et leur procédé de préparation |
| PCT/EP2021/086948 WO2022136346A1 (fr) | 2020-12-22 | 2021-12-21 | Granulés d'acide férulique et leur procédé de préparation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4267546A1 true EP4267546A1 (fr) | 2023-11-01 |
Family
ID=75438927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21843933.9A Withdrawn EP4267546A1 (fr) | 2020-12-22 | 2021-12-21 | Granulés d'acide férulique et leur procédé de préparation |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20240025836A1 (fr) |
| EP (1) | EP4267546A1 (fr) |
| JP (1) | JP2023554102A (fr) |
| CN (1) | CN116670110A (fr) |
| FR (1) | FR3118033B1 (fr) |
| MX (1) | MX2023006740A (fr) |
| WO (1) | WO2022136346A1 (fr) |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0623129B2 (ja) * | 1986-02-28 | 1994-03-30 | 三井東圧化学株式会社 | 桂皮酸類の製法 |
| US4950787A (en) * | 1988-08-24 | 1990-08-21 | Monsanto Company | Chemical process |
| JPH0778032B2 (ja) * | 1991-03-13 | 1995-08-23 | 和歌山県 | フェルラ酸の製造方法 |
| JP2004267131A (ja) * | 2003-03-10 | 2004-09-30 | Tsuno Rice Fine Chemicals Co Ltd | 好アルカリ性菌を用いるバニリンの製造方法 |
| AU2003241211A1 (en) | 2003-06-19 | 2005-01-04 | Biokab, S.A. De C.V. | Method for the recovery of ferulic acid |
| WO2008116319A1 (fr) * | 2007-03-27 | 2008-10-02 | The Royal Institution For The Advancement Of Learning/Mcgill University | Bioproduction d'acide férulique et ses utilisations |
| CN102443551B (zh) * | 2011-08-19 | 2013-08-07 | 甘肃省商业科技研究所 | 一种枯草芽孢杆菌及其生物转化阿魏酸生产香兰素的方法 |
| EP2999687B1 (fr) | 2013-05-21 | 2020-03-11 | Rhodia Operations | Procede optimise d'extraction d'acide ferulique avec pretraitement |
| CN103319328B (zh) * | 2013-05-23 | 2015-06-10 | 暨南大学 | 一种阿魏酸的制备方法 |
| CN104628553A (zh) | 2013-11-08 | 2015-05-20 | 上海凯鑫分离技术有限公司 | 阿魏酸的纯化工艺 |
| US11155513B2 (en) | 2017-04-20 | 2021-10-26 | Spero Renewables, Llc | Extraction of natural ferulate and coumarate from biomass |
-
2020
- 2020-12-22 FR FR2013918A patent/FR3118033B1/fr active Active
-
2021
- 2021-12-21 MX MX2023006740A patent/MX2023006740A/es unknown
- 2021-12-21 EP EP21843933.9A patent/EP4267546A1/fr not_active Withdrawn
- 2021-12-21 US US18/256,533 patent/US20240025836A1/en active Pending
- 2021-12-21 CN CN202180087157.0A patent/CN116670110A/zh active Pending
- 2021-12-21 WO PCT/EP2021/086948 patent/WO2022136346A1/fr not_active Ceased
- 2021-12-21 JP JP2023537148A patent/JP2023554102A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR3118033A1 (fr) | 2022-06-24 |
| US20240025836A1 (en) | 2024-01-25 |
| WO2022136346A1 (fr) | 2022-06-30 |
| CN116670110A (zh) | 2023-08-29 |
| FR3118033B1 (fr) | 2023-12-15 |
| MX2023006740A (es) | 2023-06-19 |
| JP2023554102A (ja) | 2023-12-26 |
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