WO1997019093A2 - Nouveau procede de fabrication du palatinitol - Google Patents
Nouveau procede de fabrication du palatinitol Download PDFInfo
- Publication number
- WO1997019093A2 WO1997019093A2 PCT/FR1996/001797 FR9601797W WO9719093A2 WO 1997019093 A2 WO1997019093 A2 WO 1997019093A2 FR 9601797 W FR9601797 W FR 9601797W WO 9719093 A2 WO9719093 A2 WO 9719093A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mixture
- palatinitol
- glucopyranosyl
- isomaltose
- gps
- 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.)
- Ceased
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H15/00—Compounds containing hydrocarbon or substituted hydrocarbon radicals directly attached to hetero atoms of saccharide radicals
- C07H15/02—Acyclic radicals, not substituted by cyclic structures
- C07H15/04—Acyclic radicals, not substituted by cyclic structures attached to an oxygen atom of the saccharide radical
Definitions
- the present invention relates to a new process for manufacturing palatinitol. It relates more particularly to a process for the production of palatinitol from isomaltose or ⁇ -D-glucopyranosyl- (1-6) -D-glucose.
- Palatinitol is a low-calorie, low-cariogenic sweetener obtained hitherto by catalytic hydrogenation at neutral pH of isomaltulose or ⁇ -D-glucopyranosyl- (1-6) -D-fructose.
- Isomaltulose is itself obtained by enzymatic isomerization, using a sucrose glysosyl transferase, sucrose or ⁇ -D-glucopyranosyl- (1-2) - ⁇ -D- fructofuranoside.
- sucrose which constitutes the raw material for obtaining palatinitol, a mixture in roughly equimolecular proportions, of ⁇ -D- glucopyranosyl (1-6) -D-sorbitol (GPS or isomaltitol) and of ⁇ -D- glucopyranosyl- (1-6) -D-mannitol (GPM).
- Palatinitol also known as isomalt, is sold in particular by the company Sud Weg Zucker AG under the name Palatinit®.
- the palatinitol is obtained by a process characterized in that in a first step, the epimerization of the isomaltose is carried out under conditions allowing a mixture of ⁇ -D-glucopyranosyl- to be obtained.
- palatinitol could be obtained from sucrose
- isomaltose which is obtained from glucose and therefore from various and varied starches.
- sucrose the structural formula of which includes a fructose motif
- sucrose the structural formula of which includes a fructose motif
- ketose ie isomaltulose
- the process of the invention does not at all use a starting product whose formula is similar to that of the desired palatinitol. Indeed, both the isomaltose that the glucose or the starch have a structure having no fructose motif and therefore very far from that of palatinitol.
- the process of the invention therefore makes it possible to dispense with the obligation to use sucrose as a raw material for the production of palatinitol since the isomaltose can be easily obtained from glucose and therefore from various and varied starches, whether they come from cereals or tubers.
- a process for obtaining isomaltose from glucose or from a corn syrup is for example described in French patent application 2,515,186.
- the epimerization of the isomaltose can be carried out as described in Japanese patent application 63-162698 using a metal salt and an amine, but it is preferably carried out the way that was described in the Japanese patent application 63-96195 and which consists in reacting at a pH between 2.5 and 4, in the presence of molybdic anhydride or hexavalent molybdenum salts, at a temperature between 90 ° C and 140 ° C, an aqueous solution of 'isomaltose.
- ammonium molybdate is used in a proportion of about 0.1 to 1.5% by weight relative to the isomaltose.
- the epimerization of the isomaltose is carried out in the form of an aqueous sugar solution containing from 10 to 70% of isomaltose.
- the epimerization conditions (essentially the catalyst rate, duration of the epimerization and reaction temperature) are adjusted, so as to obtain a mixture of isomaltose and ⁇ -D-glucopyranosyl- (1-6) -D-mannose , containing 10 to 40% of the latter compound.
- Mixtures containing less than 10% are not economical to process and mixtures containing more than 40% contain too many impurities which form under the extreme conditions of epimerization. It is preferred to work under conditions which make it possible to obtain 20 to 35% of ⁇ -D-glucopyranosyl- (1-6) -D- mannose and even more preferably, from 25 to 35% of this compound.
- the mixture thus obtained is then demineralized on ion-exchange resins in order to remove the salts which have served as catalyst.
- the hydrogenation of the epimerized mixture is carried out in a manner known per se, continuous or discontinuous, under a hydrogen pressure of 30 to 200 bars, at a temperature of 80 to 150 ° C in the presence of catalyst based on nickel or ruthenium and at a pH close to neutral. Hydrogenation conducted at a pH below 4.0 would result in partially hydrolyzing the isomaltose to glucose and the ⁇ -D- glucopyranosyl- (1-6) -D-mannose to glucose and mannose with the appearance of sorbitol and mannitol.
- Hydrogenation at a pH greater than 9 would have the undesired result of the formation of GPS and not of GPM from ⁇ -D-glucopyranosyl- (1-6) -D-mannose. Generally, the hydrogenation is continued until the content of reducing sugars, measured by the Bertrand method, becomes less than 1% and preferably less than 0.5%.
- the syrups obtained are purified to remove the catalyst, by filtration then demineralization on ion exchange resins, and these syrups are concentrated to a dry matter of between 10 and 70% for their chromatography. .
- These hydrogenated syrups then show an average composition ranging from 10 to 40% of GPM and from 60 to 90% of GPS.
- the hydrogenated syrups are then depleted in GPS by chromatographic means.
- the chromatography is carried out so that the two components are separated as completely as possible, ie in order to obtain a fraction A containing only very little component B and a fraction B containing very little component A.
- the depletion of the epimerized mixture in GPS is on the contrary carried out so as to obtain an excluded fraction containing a roughly equimolecular proportion of GPS and GPM, the other adsorbed fraction being it consisting of very pure GPS .
- roughly equimolecular is meant from 40 to 60% and more preferably from 45 to 55% of one of the two compounds relative to the total mass of the two compounds. This way of doing things has the advantage of obtaining palatinitol directly, without having to resort to remixes of pure fractions of GPM and GPS in the appropriate proportions.
- the chromatographic fraction containing the excess GPS can be marketed as it is after concentration, but it is preferable to crystallize the pure GPS from it that it is dried.
- GPS is indeed an excellent mass sweetener, low cariogenic and low in calories in the form of a crystalline, anhydrous and white powder flowing freely.
- This chromatographic step is very easily carried out on an industrial scale by application of the hydrogenated mixture on a column loaded with cation exchange resins of the sulfonated polystyrene type crosslinked with divinylbenzene.
- these resins must have a very fine and very homogeneous particle size advantageously between 150 and 400 microns and for their use are permuted in the form alkaline or alkaline earth.
- the mixture applied to the column is then fractionated by elution with water of the resin.
- This chromatography step can be carried out discontinuously on a single resin column or on several columns operating in parallel, but it is more advantageously carried out on multicolumn systems connected in a loop, operating according to the principle of the simulated moving bed. These systems have the advantage of obtaining better performance from the resin and of operating continuously.
- the fraction excluded at the start of the elution cycle, depleted in GPS is advantageously collected in a quantity such that it contains a roughly equimolecular proportion of GPM and GPS.
- the adsorbed fraction, representing the end of the elution cycle and containing essentially GPS and a little GPM is then concentrated and then crystallized under conditions known to those skilled in the art to extract the anhydrous GPS with a view to marketing it. .
- the fraction collected at the start of the elution cycle and containing in roughly equimolecular proportions the GPM and the GPS is then, but preferably only, demineralized on a mixed bed of strong cationic and anionic resins then it is concentrated, crystallized and dried to provide a commercial palatinitol powder which is in fact a mixture in roughly equimolecular proportions of anhydrous isomaltitol and GPM dihydrate.
- the present invention is illustrated by the example which follows and which is not limitative, the Applicant having for goal only to expose what seems to him to be one of the best means of implementing the method of his invention .
- First step Dissolving in 36 grams of water, 4 grams of crystallized isomaltose and 16 mg of ammonium molybdate (NH 4 ) 6 Mo 7 0 24 , or 0.4% by weight relative to 1 isomaltose then the pH of this solution is adjusted to 3.5 using hydrochloric acid. This solution is then brought to 130 ° C. for 15 minutes .
- this solution is demineralized on a mixed bed of strong cationic and anionic resins which provides an epimerized mixture whose resistivity is greater than 2.10 ohms. cm.
- HPLC chromatography of this epimerized mixture reveals the presence of 35% of ⁇ -D-glucopyranosyl- (1-6) -D- mannose and 65% of isomaltose. We also observe, although in trace amounts, the presence of glucose and mannose.
- This epimerized mixture was introduced into a hydrogenation reactor in the presence of 5% by weight of the sugars, of Raney nickel. After having put the apparatus under a hydrogen pressure of 50 bars which will be maintained throughout the duration of the hydrogenation, its contents are heated to the temperature of 125 ° C. The pH of the reaction medium is maintained during this hydrogenation at 8.0 using a solution of sodium bicarbonate. The hydrogenation is stopped after 8 hours, while the content of reducing sugars in the reaction medium, measured by the Bertrand method has become less than 0.1%.
- a 81 cm fraction consisting of a mixture very rich in GPS is recovered, the gas chromatographic analysis of which reveals a richness in GPS of 92% and 7% of GPM.
- This analysis also reveals traces of sorbitol and mannitol.
- This step is carried out 10 times to obtain a fraction of adsorbed GPS, with an average richness of 91.7% and a fraction excluded from a mixture of roughly equal parts of GPM and GPS containing 49.5% of GPS and 49 , 1% of GPM.
- the adsorbed chromatographic fraction, rich in GPS was concentrated under vacuum to a dry matter of 75%. As it cooled, it revealed crystals of anhydrous GPS.
- the excluded chromatographic fraction containing 49.1% of GPS and 49.5% of GPM, was concentrated so as to bring its two components to the state of crystals which were then dried to provide a white and non-hygroscopic powder of palatinitol. grading 5.1% moisture.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Genetics & Genomics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Biotechnology (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Crystallography & Structural Chemistry (AREA)
- Saccharide Compounds (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Removal Of Specific Substances (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
- Treatment Of Liquids With Adsorbents In General (AREA)
Abstract
Description
Claims
Priority Applications (14)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NZ322517A NZ322517A (en) | 1995-11-17 | 1996-11-14 | Method for making palatinitol |
| AU76284/96A AU7628496A (en) | 1995-11-17 | 1996-11-14 | Novel method for making palatinitol |
| PL96321185A PL321185A1 (en) | 1995-11-17 | 1996-11-14 | Novel method of obtaining palathynitole |
| CZ971860A CZ186097A3 (en) | 1995-11-17 | 1996-11-14 | Novel process for preparing palatinitol |
| AT96939118T ATE201690T1 (de) | 1995-11-17 | 1996-11-14 | Verfahren zur herstellung von palatinitol |
| EP96939118A EP0804449B1 (fr) | 1995-11-17 | 1996-11-14 | Nouveau procede de fabrication du palatinitol |
| US08/860,721 US6204378B1 (en) | 1995-11-17 | 1996-11-14 | Method for producing palatinitol |
| JP9519433A JPH11501328A (ja) | 1995-11-17 | 1996-11-14 | パラチニトールの新規な製法 |
| DK96939118T DK0804449T3 (da) | 1995-11-17 | 1996-11-14 | Fremgangsmåde til fremstilling af palatinitol |
| BR9606916A BR9606916A (pt) | 1995-11-17 | 1996-11-14 | Processo de fabricação do palatinitol |
| DE69613100T DE69613100T2 (de) | 1995-11-17 | 1996-11-14 | Verfahren zur herstellung von palatinitol |
| NO973174A NO306161B1 (no) | 1995-11-17 | 1997-07-09 | FramgangsmÕte for framstilling av palatinitol-2 |
| MXPA/A/1997/005399A MXPA97005399A (en) | 1995-11-17 | 1997-07-16 | New manufacturing procedure of palatini |
| GR20010401051T GR3036200T3 (en) | 1995-11-17 | 2001-07-11 | Novel method for making palatinitol |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9513648A FR2741349B1 (fr) | 1995-11-17 | 1995-11-17 | Nouveau procede de fabrication du palatinitol |
| FR95/13648 | 1995-11-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO1997019093A2 true WO1997019093A2 (fr) | 1997-05-29 |
| WO1997019093A3 WO1997019093A3 (fr) | 1997-06-19 |
Family
ID=9484666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR1996/001797 Ceased WO1997019093A2 (fr) | 1995-11-17 | 1996-11-14 | Nouveau procede de fabrication du palatinitol |
Country Status (21)
| Country | Link |
|---|---|
| US (1) | US6204378B1 (fr) |
| EP (1) | EP0804449B1 (fr) |
| JP (1) | JPH11501328A (fr) |
| KR (1) | KR19980701467A (fr) |
| CN (1) | CN1173871A (fr) |
| AT (1) | ATE201690T1 (fr) |
| AU (1) | AU7628496A (fr) |
| BR (1) | BR9606916A (fr) |
| CA (1) | CA2209268A1 (fr) |
| CZ (1) | CZ186097A3 (fr) |
| DE (1) | DE69613100T2 (fr) |
| DK (1) | DK0804449T3 (fr) |
| ES (1) | ES2158365T3 (fr) |
| FR (1) | FR2741349B1 (fr) |
| GR (1) | GR3036200T3 (fr) |
| HU (1) | HUP9801720A2 (fr) |
| NO (1) | NO306161B1 (fr) |
| NZ (1) | NZ322517A (fr) |
| PL (1) | PL321185A1 (fr) |
| PT (1) | PT804449E (fr) |
| WO (1) | WO1997019093A2 (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1054016A1 (fr) * | 1999-05-17 | 2000-11-22 | Roquette FrÀ¨res | Préparation d'un mélange de glucosyl-mannitol et de glucosyl-sorbitol |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6746541B2 (en) * | 2000-02-17 | 2004-06-08 | Kabushiki Kaisha Ueno Seiyaku Oyo Kenkyusho | Crystalline mixture solid composition and process for preparation thereof |
| JP4942902B2 (ja) * | 2000-05-22 | 2012-05-30 | 上野製薬株式会社 | 含蜜結晶組成物およびその製造法 |
| WO2002088374A1 (fr) * | 2001-04-27 | 2002-11-07 | Kabushiki Kaisha Hayashibara Seibutsu Kagaku Kenkyujo | Processus de production d'isomaltose et utilisation de celui-ci |
| US20040052915A1 (en) * | 2002-09-13 | 2004-03-18 | Carlson Ting L. | Use of low glycemic index sweeteners in food and beverage compositions |
| BRPI0507583A (pt) * | 2004-03-17 | 2007-07-03 | Cargill Inc | adoçantes com baixo ìndice glicêmico e produtos feitos usando os mesmos |
| BRPI0608080B1 (pt) * | 2005-02-15 | 2017-11-21 | Cargill Incorporated | Processes for manufacture of syrup and food or drink, syrup and composition of food or drink |
| KR102812549B1 (ko) * | 2018-09-11 | 2025-05-23 | 쥐드주커 아게 | 개선된 감미료 제조 방법 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2520173C3 (de) * | 1975-05-06 | 1989-08-10 | Südzucker AG Mannheim/Ochsenfurt, 6800 Mannheim | Verfahren zur Herstellung von Glucopyranosido-1,6-mannit sowie seine Verwendung als Zuckeraustauschstoff |
| DE2756270A1 (de) * | 1977-12-16 | 1979-06-21 | Bayer Ag | Verfahren zur herstellung von niedermolekularen polyhydroxylverbindungen |
| JPS5872598A (ja) | 1981-10-26 | 1983-04-30 | Hayashibara Biochem Lab Inc | 高純度イソマルト−スの製造方法 |
| DE3403973A1 (de) * | 1984-02-04 | 1985-08-14 | Bayer Ag, 5090 Leverkusen | Verfahren zur herstellung eines gemisches von (alpha)-d-glucopyranosido-1,6-mannit und (alpha)-d-glucopyranosido-1,6-sorbit aus (alpha)-d-glucopyranosido-1,6-fructose |
| JPH07100711B2 (ja) | 1986-10-13 | 1995-11-01 | 日本ピー・エム・シー株式会社 | 還元性オリゴ糖のエピ化法 |
| JPH07103137B2 (ja) | 1986-12-26 | 1995-11-08 | 日本ピー・エム・シー株式会社 | 糖質のエピ化法 |
| JPH04121198A (ja) * | 1990-09-11 | 1992-04-22 | Showa Denko Kk | グルコピラノシル―1,6―ソルビトールの製造法 |
| DE9321600U1 (de) * | 1993-05-06 | 2000-04-06 | Südzucker Aktiengesellschaft Mannheim/Ochsenfurt, 68165 Mannheim | Süssungsmittel |
-
1995
- 1995-11-17 FR FR9513648A patent/FR2741349B1/fr not_active Expired - Fee Related
-
1996
- 1996-11-14 PL PL96321185A patent/PL321185A1/xx unknown
- 1996-11-14 WO PCT/FR1996/001797 patent/WO1997019093A2/fr not_active Ceased
- 1996-11-14 JP JP9519433A patent/JPH11501328A/ja active Pending
- 1996-11-14 CN CN96191824A patent/CN1173871A/zh active Pending
- 1996-11-14 AT AT96939118T patent/ATE201690T1/de not_active IP Right Cessation
- 1996-11-14 KR KR1019970704857A patent/KR19980701467A/ko not_active Abandoned
- 1996-11-14 BR BR9606916A patent/BR9606916A/pt not_active Application Discontinuation
- 1996-11-14 ES ES96939118T patent/ES2158365T3/es not_active Expired - Lifetime
- 1996-11-14 PT PT96939118T patent/PT804449E/pt unknown
- 1996-11-14 NZ NZ322517A patent/NZ322517A/xx unknown
- 1996-11-14 DE DE69613100T patent/DE69613100T2/de not_active Expired - Fee Related
- 1996-11-14 CZ CZ971860A patent/CZ186097A3/cs unknown
- 1996-11-14 EP EP96939118A patent/EP0804449B1/fr not_active Expired - Lifetime
- 1996-11-14 AU AU76284/96A patent/AU7628496A/en not_active Abandoned
- 1996-11-14 DK DK96939118T patent/DK0804449T3/da active
- 1996-11-14 US US08/860,721 patent/US6204378B1/en not_active Expired - Fee Related
- 1996-11-14 HU HU9801720A patent/HUP9801720A2/hu unknown
- 1996-11-14 CA CA002209268A patent/CA2209268A1/fr not_active Abandoned
-
1997
- 1997-07-09 NO NO973174A patent/NO306161B1/no not_active IP Right Cessation
-
2001
- 2001-07-11 GR GR20010401051T patent/GR3036200T3/el not_active IP Right Cessation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1054016A1 (fr) * | 1999-05-17 | 2000-11-22 | Roquette FrÀ¨res | Préparation d'un mélange de glucosyl-mannitol et de glucosyl-sorbitol |
| FR2793797A1 (fr) * | 1999-05-17 | 2000-11-24 | Roquette Freres | Procede de preparation d'un melange de glucosyl-mannitol et de glucosyl-sorbitol par hydrogenation de la glucosyl-glucosone |
Also Published As
| Publication number | Publication date |
|---|---|
| PL321185A1 (en) | 1997-11-24 |
| FR2741349B1 (fr) | 1998-01-23 |
| GR3036200T3 (en) | 2001-10-31 |
| ATE201690T1 (de) | 2001-06-15 |
| US6204378B1 (en) | 2001-03-20 |
| CA2209268A1 (fr) | 1997-05-29 |
| EP0804449B1 (fr) | 2001-05-30 |
| FR2741349A1 (fr) | 1997-05-23 |
| WO1997019093A3 (fr) | 1997-06-19 |
| BR9606916A (pt) | 1997-11-11 |
| DE69613100T2 (de) | 2001-11-22 |
| AU7628496A (en) | 1997-06-11 |
| MX9705399A (es) | 1997-10-31 |
| KR19980701467A (ko) | 1998-05-15 |
| DE69613100D1 (de) | 2001-07-05 |
| NO306161B1 (no) | 1999-09-27 |
| NO973174D0 (no) | 1997-07-09 |
| ES2158365T3 (es) | 2001-09-01 |
| JPH11501328A (ja) | 1999-02-02 |
| HUP9801720A2 (hu) | 1998-12-28 |
| DK0804449T3 (da) | 2001-08-20 |
| EP0804449A2 (fr) | 1997-11-05 |
| CN1173871A (zh) | 1998-02-18 |
| NZ322517A (en) | 1999-05-28 |
| CZ186097A3 (en) | 1997-11-12 |
| NO973174L (no) | 1997-07-09 |
| PT804449E (pt) | 2001-11-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FR2538394A1 (fr) | Procede pour la purification de glycosides anthracyclinoniques par adsorption selective sur des resines | |
| EP1287000A1 (fr) | Procede de purification d'une composition contenant au moins un produit de deshydratation interne d'un sucre hydrogene | |
| EP0804449B1 (fr) | Nouveau procede de fabrication du palatinitol | |
| EP2624709B1 (fr) | Procede de fabrication de sirops de sorbitol de haute purete a partir de saccharose et utilisations | |
| FR2601385A1 (fr) | Procede de preparation a partir de saccharose d'un melange de sucres a haute teneur en isomaltose par voie enzymatique et produits obtenus | |
| CH616908A5 (fr) | ||
| EP0804450B1 (fr) | Nouveau procede de fabrication du palatinitol | |
| FR2573763A1 (fr) | Maltopentose cristallise et procede de preparation | |
| EP0234065B1 (fr) | Procédé de traitement de jus sucré aqueux en vue de séparer et sélectionner les saccharides à fonction cétonique | |
| EP0580490B1 (fr) | Procédé de fabrication de mannitol | |
| MXPA97005398A (es) | Nuevo procedimiento de fabricacion de palatinitol | |
| EP0999197A2 (fr) | Procédé de conversion de sucres oxydés en sucres hydrogénés par hydrogénation catalytique | |
| BE1000199A4 (fr) | Procede de preparation de derives de la moranoline. | |
| LU81707A1 (fr) | Procede de production des acides ascorbique et erythorbique | |
| BE821884Q (fr) | Procede de preparation de n-isopropylaniline | |
| EP0796268B1 (fr) | Procede de preparation en continu d'une solution de cetose par isomerisation d'aldose, et installation de mise en oeuvre | |
| WO1990000554A1 (fr) | Procede de separation de l'arabinose contenu dans un jus sucre de saccharides | |
| MXPA97005399A (en) | New manufacturing procedure of palatini | |
| BE889787A (fr) | Procede de preparation de cobalt-corrinoides | |
| CH641472A5 (fr) | Procede de production d'acide 2-cetogulonique, de ses esters alkyliques et de ses sels. | |
| FR2695122A1 (fr) | Utilisation d'hydrates de carbone à l'état solide comme support chiral de réactions chimiques. | |
| FR2778664A1 (fr) | Procede de preparation de maltulose monohydrate cristallise | |
| FR2711654A1 (fr) | Procédé d'obtention de lactulitol et lactulitol obtenu selon ce procédé. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WWE | Wipo information: entry into national phase |
Ref document number: 96191824.1 Country of ref document: CN |
|
| AK | Designated states |
Kind code of ref document: A2 Designated state(s): AL AM AT AU AZ BA BB BG BR BY CA CH CN CU CZ DE DK EE ES FI GB GE HU IL IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK TJ TM TR TT UA UG US UZ VN AM AZ BY KG KZ MD RU TJ TM |
|
| AL | Designated countries for regional patents |
Kind code of ref document: A2 Designated state(s): KE LS MW SD SZ UG AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG |
|
| WWE | Wipo information: entry into national phase |
Ref document number: PV1997-1860 Country of ref document: CZ |
|
| AK | Designated states |
Kind code of ref document: A3 Designated state(s): AL AM AT AU AZ BA BB BG BR BY CA CH CN CU CZ DE DK EE ES FI GB GE HU IL IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK TJ TM TR TT UA UG US UZ VN AM AZ BY KG KZ MD RU TJ TM |
|
| AL | Designated countries for regional patents |
Kind code of ref document: A3 Designated state(s): KE LS MW SD SZ UG AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG |
|
| ENP | Entry into the national phase |
Ref document number: 2209268 Country of ref document: CA Ref document number: 2209268 Country of ref document: CA Kind code of ref document: A |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 322517 Country of ref document: NZ |
|
| WWE | Wipo information: entry into national phase |
Ref document number: PA/a/1997/005399 Country of ref document: MX Ref document number: 1019970704857 Country of ref document: KR |
|
| ENP | Entry into the national phase |
Ref document number: 1997 519433 Country of ref document: JP Kind code of ref document: A |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 1996939118 Country of ref document: EP |
|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
| WWE | Wipo information: entry into national phase |
Ref document number: 08860721 Country of ref document: US |
|
| WWP | Wipo information: published in national office |
Ref document number: 1996939118 Country of ref document: EP |
|
| WWP | Wipo information: published in national office |
Ref document number: PV1997-1860 Country of ref document: CZ |
|
| REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
| WWP | Wipo information: published in national office |
Ref document number: 1019970704857 Country of ref document: KR |
|
| WWW | Wipo information: withdrawn in national office |
Ref document number: 1019970704857 Country of ref document: KR |
|
| WWR | Wipo information: refused in national office |
Ref document number: PV1997-1860 Country of ref document: CZ |
|
| WWG | Wipo information: grant in national office |
Ref document number: 1996939118 Country of ref document: EP |