JP7530388B2 - キャロブエキスからピニトールを分離するためのプロセス - Google Patents
キャロブエキスからピニトールを分離するためのプロセス Download PDFInfo
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- JP7530388B2 JP7530388B2 JP2021564573A JP2021564573A JP7530388B2 JP 7530388 B2 JP7530388 B2 JP 7530388B2 JP 2021564573 A JP2021564573 A JP 2021564573A JP 2021564573 A JP2021564573 A JP 2021564573A JP 7530388 B2 JP7530388 B2 JP 7530388B2
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- pinitol
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- DSCFFEYYQKSRSV-KLJZZCKASA-N D-pinitol Chemical compound CO[C@@H]1[C@@H](O)[C@@H](O)[C@H](O)[C@H](O)[C@H]1O DSCFFEYYQKSRSV-KLJZZCKASA-N 0.000 title claims description 98
- DSCFFEYYQKSRSV-UHFFFAOYSA-N 1L-O1-methyl-muco-inositol Natural products COC1C(O)C(O)C(O)C(O)C1O DSCFFEYYQKSRSV-UHFFFAOYSA-N 0.000 title claims description 97
- VJXUJFAZXQOXMJ-UHFFFAOYSA-N D-1-O-Methyl-muco-inositol Natural products CC12C(OC)(C)OC(C)(C)C2CC(=O)C(C23OC2C(=O)O2)(C)C1CCC3(C)C2C=1C=COC=1 VJXUJFAZXQOXMJ-UHFFFAOYSA-N 0.000 title claims description 97
- 239000000284 extract Substances 0.000 title claims description 78
- 240000008886 Ceratonia siliqua Species 0.000 title claims description 71
- 235000013912 Ceratonia siliqua Nutrition 0.000 title claims description 70
- 238000000034 method Methods 0.000 title claims description 61
- 230000008569 process Effects 0.000 title claims description 44
- 239000000243 solution Substances 0.000 claims description 52
- 239000007864 aqueous solution Substances 0.000 claims description 46
- CDAISMWEOUEBRE-UHFFFAOYSA-N scyllo-inosotol Natural products OC1C(O)C(O)C(O)C(O)C1O CDAISMWEOUEBRE-UHFFFAOYSA-N 0.000 claims description 35
- CDAISMWEOUEBRE-LKPKBOIGSA-N 1D-chiro-inositol Chemical compound O[C@H]1[C@@H](O)[C@H](O)[C@H](O)[C@@H](O)[C@@H]1O CDAISMWEOUEBRE-LKPKBOIGSA-N 0.000 claims description 32
- 239000011347 resin Substances 0.000 claims description 28
- 229920005989 resin Polymers 0.000 claims description 28
- 239000012610 weak anion exchange resin Substances 0.000 claims description 14
- 229930006000 Sucrose Natural products 0.000 claims description 13
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 claims description 13
- 239000012609 strong anion exchange resin Substances 0.000 claims description 13
- 239000012607 strong cation exchange resin Substances 0.000 claims description 13
- 239000005720 sucrose Substances 0.000 claims description 13
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- SQUHHTBVTRBESD-UHFFFAOYSA-N Hexa-Ac-myo-Inositol Natural products CC(=O)OC1C(OC(C)=O)C(OC(C)=O)C(OC(C)=O)C(OC(C)=O)C1OC(C)=O SQUHHTBVTRBESD-UHFFFAOYSA-N 0.000 claims description 3
- 238000005903 acid hydrolysis reaction Methods 0.000 claims description 3
- CDAISMWEOUEBRE-GPIVLXJGSA-N inositol Chemical compound O[C@H]1[C@H](O)[C@@H](O)[C@H](O)[C@H](O)[C@@H]1O CDAISMWEOUEBRE-GPIVLXJGSA-N 0.000 claims description 3
- 229960000367 inositol Drugs 0.000 claims description 3
- 239000000203 mixture Substances 0.000 description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 13
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- 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 11
- 239000008103 glucose Substances 0.000 description 11
- 238000001914 filtration Methods 0.000 description 10
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- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 9
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- RFSUNEUAIZKAJO-ARQDHWQXSA-N Fructose Chemical compound OC[C@H]1O[C@](O)(CO)[C@@H](O)[C@@H]1O RFSUNEUAIZKAJO-ARQDHWQXSA-N 0.000 description 9
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- 239000010451 perlite Substances 0.000 description 7
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- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- 150000001768 cations Chemical class 0.000 description 6
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 6
- 235000019441 ethanol Nutrition 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
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- 244000068988 Glycine max Species 0.000 description 5
- 235000010469 Glycine max Nutrition 0.000 description 5
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- 102100022851 Rab5 GDP/GTP exchange factor Human genes 0.000 description 5
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- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 4
- 239000003729 cation exchange resin Substances 0.000 description 4
- CVSVTCORWBXHQV-UHFFFAOYSA-N creatine Chemical compound NC(=[NH2+])N(C)CC([O-])=O CVSVTCORWBXHQV-UHFFFAOYSA-N 0.000 description 4
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- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- 101100325756 Arabidopsis thaliana BAM5 gene Proteins 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 101150046378 RAM1 gene Proteins 0.000 description 3
- 101100476489 Rattus norvegicus Slc20a2 gene Proteins 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000003463 adsorbent Substances 0.000 description 3
- 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 3
- 125000002091 cationic group Chemical group 0.000 description 3
- 210000004534 cecum Anatomy 0.000 description 3
- 239000003456 ion exchange resin Substances 0.000 description 3
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- 230000000813 microbial effect Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 235000012239 silicon dioxide Nutrition 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- CHRJZRDFSQHIFI-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;styrene Chemical compound C=CC1=CC=CC=C1.C=CC1=CC=CC=C1C=C CHRJZRDFSQHIFI-UHFFFAOYSA-N 0.000 description 2
- DSCFFEYYQKSRSV-HMSOCMLXSA-N D-pinitol Natural products CO[C@H]1[C@@H](O)[C@@H](O)[C@@H](O)[C@H](O)[C@H]1O DSCFFEYYQKSRSV-HMSOCMLXSA-N 0.000 description 2
- 229920002527 Glycogen Polymers 0.000 description 2
- 235000017367 Guainella Nutrition 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 2
- 241000018646 Pinus brutia Species 0.000 description 2
- 235000011613 Pinus brutia Nutrition 0.000 description 2
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- 230000001143 conditioned effect Effects 0.000 description 2
- 229960003624 creatine Drugs 0.000 description 2
- 239000006046 creatine Substances 0.000 description 2
- 238000012258 culturing Methods 0.000 description 2
- 238000007791 dehumidification Methods 0.000 description 2
- 235000015872 dietary supplement Nutrition 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 239000003480 eluent Substances 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- 229940096919 glycogen Drugs 0.000 description 2
- NOESYZHRGYRDHS-UHFFFAOYSA-N insulin Chemical group N1C(=O)C(NC(=O)C(CCC(N)=O)NC(=O)C(CCC(O)=O)NC(=O)C(C(C)C)NC(=O)C(NC(=O)CN)C(C)CC)CSSCC(C(NC(CO)C(=O)NC(CC(C)C)C(=O)NC(CC=2C=CC(O)=CC=2)C(=O)NC(CCC(N)=O)C(=O)NC(CC(C)C)C(=O)NC(CCC(O)=O)C(=O)NC(CC(N)=O)C(=O)NC(CC=2C=CC(O)=CC=2)C(=O)NC(CSSCC(NC(=O)C(C(C)C)NC(=O)C(CC(C)C)NC(=O)C(CC=2C=CC(O)=CC=2)NC(=O)C(CC(C)C)NC(=O)C(C)NC(=O)C(CCC(O)=O)NC(=O)C(C(C)C)NC(=O)C(CC(C)C)NC(=O)C(CC=2NC=NC=2)NC(=O)C(CO)NC(=O)CNC2=O)C(=O)NCC(=O)NC(CCC(O)=O)C(=O)NC(CCCNC(N)=N)C(=O)NCC(=O)NC(CC=3C=CC=CC=3)C(=O)NC(CC=3C=CC=CC=3)C(=O)NC(CC=3C=CC(O)=CC=3)C(=O)NC(C(C)O)C(=O)N3C(CCC3)C(=O)NC(CCCCN)C(=O)NC(C)C(O)=O)C(=O)NC(CC(N)=O)C(O)=O)=O)NC(=O)C(C(C)CC)NC(=O)C(CO)NC(=O)C(C(C)O)NC(=O)C1CSSCC2NC(=O)C(CC(C)C)NC(=O)C(NC(=O)C(CCC(N)=O)NC(=O)C(CC(N)=O)NC(=O)C(NC(=O)C(N)CC=1C=CC=CC=1)C(C)C)CC1=CN=CN1 NOESYZHRGYRDHS-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
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- 150000008163 sugars Chemical class 0.000 description 2
- 239000006228 supernatant Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 241001316288 Bougainvillea spectabilis Species 0.000 description 1
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 244000212127 Gliricidia sepium Species 0.000 description 1
- 235000009664 Gliricidia sepium Nutrition 0.000 description 1
- 102000004877 Insulin Human genes 0.000 description 1
- 108090001061 Insulin Proteins 0.000 description 1
- 208000008589 Obesity Diseases 0.000 description 1
- 240000009222 Prosopis chilensis Species 0.000 description 1
- 240000004808 Saccharomyces cerevisiae Species 0.000 description 1
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
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- 235000015157 algarrobo Nutrition 0.000 description 1
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- 125000000129 anionic group Chemical group 0.000 description 1
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- 230000008901 benefit Effects 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
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- 229910052906 cristobalite Inorganic materials 0.000 description 1
- YXWPCGCWTYGSKY-UHFFFAOYSA-N cyclohexane-1,1,2,2,3,3,4-heptol Chemical compound OC1CCC(O)(O)C(O)(O)C1(O)O YXWPCGCWTYGSKY-UHFFFAOYSA-N 0.000 description 1
- 238000005115 demineralization Methods 0.000 description 1
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- 230000006377 glucose transport Effects 0.000 description 1
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- 229940125396 insulin Drugs 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
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- 235000020824 obesity Nutrition 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 229920001467 poly(styrenesulfonates) Polymers 0.000 description 1
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Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/74—Separation; Purification; Use of additives, e.g. for stabilisation
- C07C29/76—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment
- C07C29/86—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment by liquid-liquid treatment
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K36/00—Medicinal preparations of undetermined constitution containing material from algae, lichens, fungi or plants, or derivatives thereof, e.g. traditional herbal medicines
- A61K36/18—Magnoliophyta (angiosperms)
- A61K36/185—Magnoliopsida (dicotyledons)
- A61K36/48—Fabaceae or Leguminosae (Pea or Legume family); Caesalpiniaceae; Mimosaceae; Papilionaceae
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
- B01D15/08—Selective adsorption, e.g. chromatography
- B01D15/10—Selective adsorption, e.g. chromatography characterised by constructional or operational features
- B01D15/18—Selective adsorption, e.g. chromatography characterised by constructional or operational features relating to flow patterns
- B01D15/1814—Selective adsorption, e.g. chromatography characterised by constructional or operational features relating to flow patterns recycling of the fraction to be distributed
- B01D15/1821—Simulated moving beds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
- B01D15/08—Selective adsorption, e.g. chromatography
- B01D15/26—Selective adsorption, e.g. chromatography characterised by the separation mechanism
- B01D15/36—Selective adsorption, e.g. chromatography characterised by the separation mechanism involving ionic interaction
- B01D15/361—Ion-exchange
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J39/00—Cation exchange; Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
- B01J39/26—Cation exchangers for chromatographic processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J41/00—Anion exchange; Use of material as anion exchangers; Treatment of material for improving the anion exchange properties
- B01J41/20—Anion exchangers for chromatographic processes
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C41/00—Preparation of ethers; Preparation of compounds having groups, groups or groups
- C07C41/01—Preparation of ethers
- C07C41/34—Separation; Purification; Stabilisation; Use of additives
- C07C41/36—Separation; Purification; Stabilisation; Use of additives by solid-liquid treatment; by chemisorption
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C43/00—Ethers; Compounds having groups, groups or groups
- C07C43/02—Ethers
- C07C43/18—Ethers having an ether-oxygen atom bound to a carbon atom of a ring other than a six-membered aromatic ring
- C07C43/196—Ethers having an ether-oxygen atom bound to a carbon atom of a ring other than a six-membered aromatic ring containing hydroxy or O-metal groups
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Natural Medicines & Medicinal Plants (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biotechnology (AREA)
- Microbiology (AREA)
- Alternative & Traditional Medicine (AREA)
- Sustainable Development (AREA)
- Botany (AREA)
- Medical Informatics (AREA)
- Medicinal Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mycology (AREA)
- Pharmacology & Pharmacy (AREA)
- Epidemiology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
a)ブリックス値が60超であり、ピニトール含有量がエキスの重量に基づく重量パーセントで5~25%である濾過および脱塩されたキャロブエキスを提供する工程と、
b)前記工程a)の前記キャロブエキスに、前記ピニトールのクロマトグラフィー分離プロセスを行なう工程であって、該プロセスは、前記エキスをクロマトグラフィー樹脂に少なくとも1回通し、これにより、ピニトール含有量が溶液の総重量に基づく重量パーセントで35~70%であり、ブリックス値が20以下である水溶液を得ることを含む工程と、
c)前記工程b)で得られた前記水溶液に精製工程を行なうことにより、ピニトール含有量が溶液の総重量に基づく重量パーセントで55%超である精製水溶液を得る工程と、を有する。
i.キャロブエキスを弱陰イオン交換樹脂に1回目に通す工程と、
ii.キャロブエキスを強陽イオン交換樹脂に1回目に通す工程と、
iii.キャロブエキスを弱陰イオン交換樹脂に2回目に通す工程と、
iv.キャロブエキスを強陰イオン交換樹脂に通す工程と、
v.キャロブエキスを強陽イオン交換樹脂に2回目に通す工程と、に順に行なうことによって行なわれる。
ピニトールの分離プロセス(図1~図8)
1)カラム1:Relite RAM1/M(イタリア国ミラノResindion S.r.l.)(弱陰イオン)
2)カラム2:Relite RPS(イタリア国ミラノResindion S.r.l.)(強陽イオン)
3)カラム3:Relite RAM1/M(イタリア国ミラノResindion S.r.l.)(弱陰イオン)
4)カラム3:Relite RAP1(イタリア国ミラノResindion S.r.l.)(強陰イオン)
5)カラム4:Relite RPS(イタリア国ミラノResindion S.r.l.)(強陽イオン)
W:水の流速
F:供給速度
P:精製溶液の体積
R:濃縮液の体積(「廃液」)
D-チロ-イノシトールの分離プロセス(図9、図10)
実施例1で得られた純度95%超の粉末ピニトール30gを1リットルのフラスコに加え、16gの水に入れ、この溶液に104gの33%塩酸を加えた。
Claims (8)
- キャロブエキスから少なくとも1種のイノシトールを分離するためのプロセスであって、
a)ブリックス値が60超であり、ピニトール含有量がエキスの重量に基づく重量パーセントで5~25%である濾過および脱塩されたキャロブエキスを提供する工程と、
b)前記工程a)の前記キャロブエキスに、前記ピニトールのクロマトグラフィー分離プロセスを行なう工程であって、該プロセスは、前記エキスをクロマトグラフィー樹脂に少なくとも1回通し、これにより、ピニトール含有量が溶液の総重量に基づく重量パーセントで35~70%であり、ブリックス値が20以下である水溶液を得ることを含む工程と、
c)前記工程b)で得られた前記水溶液に精製工程を行なうことにより、ピニトール含有量が溶液の総重量に基づく重量パーセントで55%超である精製水溶液を得る工程と、を有し、
前記工程a)の前記キャロブエキスが、少なくとも2つの弱陰イオン交換樹脂および少なくとも2つの強陽イオン交換樹脂に通すことによって脱塩され、
前記キャロブエキスを弱陰イオン交換樹脂に前記少なくとも1回通した後、強陽イオン交換樹脂に通す前に、前記キャロブエキスを強陰イオン交換樹脂に通し、
前記工程a)の前記キャロブエキスが、該エキスの重量に基づく重量パーセントで、5~15%のスクロースを含む、プロセス。 - 前記工程a)において、前記キャロブエキスが脱色されることをさらに含む、請求項1に記載のプロセス。
- 前記脱塩は、前記キャロブエキスに、
i.前記キャロブエキスを弱陰イオン交換樹脂に1回目に通す工程と、
ii.前記キャロブエキスを強陽イオン交換樹脂に1回目に通す工程と、
iii.前記キャロブエキスを弱陰イオン交換樹脂に2回目に通す工程と、
iv.前記キャロブエキスを強陰イオン交換樹脂に通す工程と、
v.前記キャロブエキスを強陽イオン交換樹脂に2回目に通す工程と、に順に行なうことにより行なわれる、請求項1または2に記載のプロセス。 - 前記工程a)の前記キャロブエキスが、該エキスの重量に基づく重量パーセントで、5~20%、または10~15%のピニトールを含む、請求項1~3のいずれか1項に記載のプロセス。
- 前記工程b)が、「擬似移動床クロマトグラフィー(SMBクロマトグラフィー)」法によって、改良連続クロマトグラフィー分離(ISMB)によって、または、ISMB(登録商標)(三菱化成工業株式会社)によって行なわれる、請求項1~4のいずれか1項に記載のプロセス。
- 前記精製工程c)が、前記工程b)で得られた前記溶液を、濃縮する、または熱により濃縮する工程を含む、請求項1~5のいずれか1項に記載のプロセス。
- 前記精製工程c)の最後に、ピニトールを少なくとも70%、少なくとも80%、少なくとも85%、少なくとも90%、または少なくとも95%の純度で含む濃縮物が得られる、請求項1~6のいずれか1項に記載のプロセス。
- 前記工程c)の後に、該工程c)で得られた前記水溶液に対しピニトールの酸加水分解を行ない、D-チロ-イノシトールを含む水溶液を得て、次に、D-チロ-イノシトールを含む前記水溶液を強陰イオン交換樹脂に少なくとも1回通すことにより、D-チロ-イノシトールを含む前記水溶液からD-チロ-イノシトールをクロマトグラフィー分離することにより、D-チロ-イノシトールを含む水溶液を得る工程d)が行なわれる、請求項1~7のいずれか1項に記載のプロセス。
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