WO2017169311A1 - ネポジン高含有ギシギシ抽出物の製造方法及びネポジン高含有ギシギシ抽出物 - Google Patents
ネポジン高含有ギシギシ抽出物の製造方法及びネポジン高含有ギシギシ抽出物 Download PDFInfo
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- WO2017169311A1 WO2017169311A1 PCT/JP2017/006435 JP2017006435W WO2017169311A1 WO 2017169311 A1 WO2017169311 A1 WO 2017169311A1 JP 2017006435 W JP2017006435 W JP 2017006435W WO 2017169311 A1 WO2017169311 A1 WO 2017169311A1
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- nepodin
- nepogin
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- 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)
- A61K36/70—Polygonaceae (Buckwheat family), e.g. spineflower or dock
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/12—Ketones
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2236/00—Isolation or extraction methods of medicinal preparations of undetermined constitution containing material from algae, lichens, fungi or plants, or derivatives thereof, e.g. traditional herbal medicine
- A61K2236/30—Extraction of the material
- A61K2236/39—Complex extraction schemes, e.g. fractionation or repeated extraction steps
Definitions
- the present invention relates to a method for producing a Nepodin-rich Gishigishi extract using Gishigishi and a Nepodin-rich Gishigishi extract.
- Nepodin (CAS registration number: 3785-24-8) is also called mucidin or dianeridine, and has a structure represented by the following formula (1). Nepodin has pharmacological actions that improve various symptoms by activating 5 'adenosine monophosphate-activated protein kinase (AMPK), such as glucose tolerance improving action, blood lipid level improving action, and metabolic syndrome improving action.
- AMPK 5 'adenosine monophosphate-activated protein kinase
- Gishigishi which is a perennial plant of the genus Sorbusaceae ( Rumex ).
- sorrel sorrel (R.japonicus), Nagabagishigishi (R.crispus), Rumex obtusifolius (R.obtusifolius), such as Scarabaeidae sorrel (R.maritimus) are known.
- Non-patent Documents 1 and 2 As a method for obtaining apargin from Gishigishi, there is known a method in which rhizomes such as the roots and stems of Gishigishi are subjected to an extraction treatment using a nepodin-soluble organic solvent such as ethanol or ethyl acetate (Non-patent Documents 1 and 2 below). The entire description of which is incorporated herein by reference).
- Nepodin contained in Gishigishi has several pharmacological actions as described in Patent Document 1, and therefore, the demand as an active ingredient for pharmaceuticals and quasi drugs is increasing. Therefore, if there is a method for efficiently producing an extract of a natural product containing nepodin (hereinafter referred to as nepodin-containing extract), the strigdin-containing extract can be used as an active ingredient or additive such as a pharmaceutical product. Expect more.
- Non-Patent Documents 1 and 2 are methods that can obtain a romancedin-containing extract
- the obtained nepodin-containing extract contains a large amount of contaminants such as fatty acids derived from Gishigishi. There is a problem that it is contained.
- the obtained nepodin-containing extract in order to obtain a high content of nepodin, the obtained strigdin-containing extract must be subjected to a concentration treatment. Such a concentration treatment requires enormous facilities and time depending on the amount of the extraction solvent. Therefore, there is a problem that it is difficult to implement industrially.
- the present invention is a method for producing a apardin-containing extract containing apardin at a high concentration and containing less contaminants, while being easy to implement on an industrial scale as compared with the prior art. It is a problem to be solved by the invention.
- the inventors of the present invention contain nepogin by subjecting a crude extract obtained by subjecting a squeezed swordfish to an extraction treatment to a hydration treatment and / or a concentration treatment. It was found that a solid was obtained. Further, the solid is subjected to a weak alkali treatment and further subjected to a strong alkali treatment to obtain a nepogin-containing aqueous solution. Further, the nepodin-containing aqueous solution is subjected to a neutralization treatment, so that nepogin is finally contained in an amount of 20 to 40 wt%. It has succeeded in producing a apardin-containing squeeze extract that contains a high concentration of glycine but reduced contamination of fatty acid-derived impurities such as fatty acids. The present invention has been completed based on such knowledge and success.
- a method for producing a romancedin-containing scouring extract comprising the following steps (1) to (5).
- a step of obtaining a crude extract of borage by subjecting it to an extraction treatment using a nepogin-soluble solvent (2)
- Step (3) of obtaining an extract solid content (3)
- Step of obtaining a strongly alkaline lysate by providing (5)
- Step of obtaining a nepogin-containing squeezed extract by subjecting the strong alkali lysate to neutralization treatment
- the socialdin-soluble solvent is 20 to 100% (v / v) ethanol.
- the weak alkali treatment is a weak alkali treatment using a weak alkaline aqueous solution having a pH of 8 to 10.
- the weak alkali treatment is a weak alkali treatment obtained by mixing sodium hydrogen carbonate and water and using a weak alkaline aqueous solution having a pH of 8 to 10. is there.
- the strong alkali treatment is a strong alkali treatment using a strong alkaline aqueous solution having a pH of 12 to 14.
- the strong alkali treatment is a strong alkali treatment obtained by mixing sodium hydroxide and water and using a strong alkaline aqueous solution having a pH of 12 to 14. is there.
- the neutralization treatment is a neutralization treatment using an acidic aqueous solution having a pH of 1 to 3.
- the neutralization treatment is obtained by mixing an acid component selected from the group consisting of acetic acid and hydrochloric acid and water, and is an acidic aqueous solution having a pH of 1 to 3.
- the socialdin-containing scallop extract is a constructivedin-containing swordfish extract containing 20 to 40 wt% constructivegin.
- a nepodin-containing scouring extract containing 20-40 wt% nepodin and 60 wt% or less fatty acid.
- the nepodin-containing scouring extract of one aspect of the present invention is a constructivedin-containing squeaking extract obtained by the production method of one aspect of the present invention.
- the production method of one embodiment of the present invention in principle, it is a method consisting of addition of a solution and solid-liquid separation, and a simple process. Therefore, it can be easily carried out on an industrial scale as compared with the prior art.
- As a method it is possible to produce a constructivegin-containing scallop extract containing apardin at a high concentration and containing a small amount of contaminants derived from swordfish.
- the nepodin-containing scouring extract of one aspect of the present invention a wide variety of pharmaceuticals and quasi-drugs containing, as an active ingredient, nepozin-containing scouring extract itself or purified constructivedin obtained by purification from a neposin-containing squeaking extract.
- Product can be manufactured.
- the constructivegin-containing squeeze extract or purified constructivedin of one embodiment of the present invention is used alone or in combination with other additives, powders, granules, tablets, liquids, pastes for pharmaceuticals or quasi-drugs, It can be provided in various forms such as capsules and gels.
- FIG. 1 is a flowchart schematically illustrating a manufacturing method according to an embodiment of the present invention.
- the manufacturing method of 1 aspect of this invention is related with the method of manufacturing the bark extract which contains a high amount of nepogin by using the solid content of a bark extract for a weak alkali process, a strong alkali process, and a neutralization process.
- the first aspect of the present invention includes at least the following steps (1) to (5). (1) A step of obtaining a crude extract of borage by subjecting it to an extraction treatment using a nepogin-soluble solvent (2) A step of crumpling of the burrow by subjecting the crude extract to hydration and / or concentration.
- Step (3) of obtaining an extract solid content (3) Step of obtaining a weak alkali insoluble material by subjecting the crude extract solid content to a weak alkali treatment (4) Step of obtaining a strongly alkaline lysate by providing (5) Step of obtaining a constructivegin-containing squeezed extract by subjecting the strong alkali lysate to neutralization treatment
- Gishigishi is a kind of the family Taceae as is known in the art. For example, it is a perennial that is distributed throughout Japan, and is known as a weed that is often found on roadsides and the paddy fields. Gishigishi is also known as a plant that stretches about 1 m of stem in early summer and attaches a flower similar to buckwheat to a bell.
- Sorrel is not particularly limited as long as it contains the Nepojin, for example, sorrel (Rumex japonicus), Nagabagishigishi (R.crispus), Rumex obtusifolius (R.obtusifolius), Great Gray Bruno rhubarb (R.gmelini), Kibunedaiou (R .nepalensis), R. hastatus, R. alpinus , sorrel ( R. acetosa ), R. cripus, R. stenophyllus , R.A. patientia, R. chalepensis, R. orientalis and the like.
- a swordfish includes plants closely related to swordfish.
- the closely related plant Rumex for example, Polygonaceae family plant and bellflower run is closely related plants (Dianella ensifolia), D. revoluta, D. callicarpa, D. nigra; Hosobakisuge (Hemerocallis minor); a agave plant of the family Simethis bicolor Kunth; plumbaginaceae a Limonium plant Limonium myrianthum; rhamnaceae plants in which Rhamnus prinoides, R. wightii, R. procumbens; a myrsinaceae Tsuruman Ryo Genus Myrsine africana; other but such Maesopsis eminii the like a plant, without limitation.
- the borage may be one kind or two or more kinds of the above-mentioned laceaceae plants or close-up plants, and may be a hybrid of the plants mentioned as the above specific examples.
- the burrowing site is not particularly limited as long as it contains nepogin, but it is preferably a root because the content per unit mass of nepogin is large.
- other parts such as stems, leaves, and flowers may be mixed.
- burrows include burrows, yellow-tailed daisies, Nagabagi-shigishi, yellow-tailed daisies, Ezonogishigishi, R. hastatus, D. ensifolia , D.M. callicarpa (Liliaceae), D. nigra, the roots of Hosobakisuge and Myrsine africana; R. Leaves of prinoides; R. such as the bark of wightii .
- the root of Gigi is preferred because it has been used as a herbal medicine in the name of sheep's hoof.
- the root of borage contains chrysophanol, emodin, chrysophane noanthrone, oxalic acid, etc., and is known to have antibacterial action and blood clot action.
- the squeegee immediately after harvesting in the production method of one embodiment of the present invention.
- it is preferably stored by a storage means usually used by those skilled in the art such as low-temperature storage in order to prevent the burrow of the burrow.
- the borage may be subjected to a pretreatment such as a drying treatment, a pulverization treatment, a fragmentation treatment, or a combination of these after harvesting.
- a pretreatment such as a drying treatment, a pulverization treatment, a fragmentation treatment, or a combination of these after harvesting.
- the squeeze can be made into a dry powder.
- the drying process and the pulverization process may be performed at the same time, or any of them may be performed first, but it is preferable to perform the pulverization process after the drying process is performed first for the convenience of work.
- a drying process is not specifically limited, For example, the process which dries so that the water content of a borage will be 10 mass% (wt%) or less, Preferably it is 5 wt% or less is mentioned.
- the drying process is known to those skilled in the art such as a method of drying in the sun, hot air drying, hot air drying, high pressure steam drying, spray drying, reduced pressure drying, fluidized drying, electromagnetic wave drying, freeze drying using a dryer. This can be done by any method. Drying by heating can be carried out at a temperature and time that does not alter stigmatism or constructivedin by heating at, for example, 30 to 140 ° C., preferably 40 to 100 ° C.
- the pulverization process is not particularly limited, and examples thereof include a process of pulverizing a plant body by an arbitrary method commonly used by those skilled in the art using a crusher, a mill, a blender, a millstone, or the like.
- the fragmentation process is not particularly limited, for example, a method commonly used by a person skilled in the art, such as slicing, crushing, and shredding, to fragment a plant can be used.
- a scallop crude extract is obtained by subjecting a swordfish stored or pretreated immediately after harvesting or after harvesting to an extraction treatment using a nepodin-soluble solvent.
- the solvent that is soluble in romancedin is not particularly limited as long as it is a solvent that can dissolve nepogin.
- a solvent that is readily soluble in nepodin specifically, an organic solvent such as ethanol or ethyl acetate, and these organic solvents.
- examples thereof include a mixed solvent with water.
- a mixed solvent of ethanol and water is used as the nepodin-soluble solvent, for example, it is preferably 20 to 100% (v / v) ethanol. If the ethanol concentration is less than 20% (v / v), the extraction efficiency may be poor.
- the romancedin-soluble solvent is more preferably 20 to 80% (v / v) ethanol, more preferably 20 to 60% (v / v) ethanol. .
- the conditions for the extraction treatment are not particularly limited as long as nepodin in borage is suitable for dissolving in a solvent, and can be appropriately set according to the state and amount of burrow and the type and amount of nepodin-soluble solvent.
- the conditions for the extraction treatment can be determined by confirming the concentration of nepogin in the treatment solution by, for example, appropriately sampling a treatment solution obtained from borage and constructivegin soluble solvent.
- the recovery rate of constructivedin in the constructivegin extract is not particularly limited, but it is preferably 50% or more based on the assumed content of constructivegin contained in the raw material Gishigishi.
- the scallop crude extract obtained by the step (1) contains a certain amount of solid content derived from scouring. Therefore, from the viewpoint of the processing efficiency of the subsequent step (2), the crude extract obtained by the step (1) is subjected to a commonly known solid-liquid separation means such as centrifugation or filtration, and the residue of It is preferable to obtain it as a liquid component from which is removed.
- a commonly known solid-liquid separation means such as centrifugation or filtration
- the scallop crude extract obtained by the step (1) is subjected to a hydration treatment, a concentration treatment, or a hydration treatment and a concentration treatment.
- a solid is obtained.
- the water treatment is not particularly limited as long as water is added to the rough extract, and the solid content in the rough extract is precipitated.
- the hydrolysis treatment is 0.1 to 5 times that of the rough extract.
- the concentration treatment is not particularly limited as long as the solid content in the rough extract is precipitated by a commonly known concentration means, for example, the rough extract is, for example, under reduced pressure or low temperature, By leaving it to stand for several minutes to several hours to several days, it can be carried out by volatilizing the liquid component in the rough extract.
- the degree of concentration is not particularly limited. For example, the volume may be reduced to about 1/2 to 1/10, and the liquid component may be volatilized until it becomes dry.
- Either one or both of the hydration treatment and the concentration treatment can be performed.
- count of a hydration process and a concentration process are not specifically limited,
- a concentration process can be implemented after a hydration process.
- the crude extract solid content obtained by the hydrolysis and / or concentration treatment is used as it is or as a solid content obtained by subjecting it to a commonly known solid-liquid separation means such as centrifugation or filtration. Used for.
- the scouring crude extract solid content may be subjected to the above-described drying treatment or pulverization treatment.
- the concentration of nepodin (content) in the solid content of the rough extract is not particularly limited, and is, for example, 10 wt% or more, preferably 15 wt% or more, based on the wet mass of the solid extract.
- the crude extract solid matter obtained in the step (2) is subjected to a weak alkali treatment, whereby a weak alkali insoluble as an insoluble nepodin-containing component is obtained. Get things.
- the weak alkali is not particularly limited as long as it decomposes impurities in the solid content of the rough extract and does not dissolve nepogin.
- sodium hydrogen carbonate, aqueous ammonia, sodium carbonate, calcium carbonate, magnesium carbonate A solution in which a weak alkali component such as magnesium oxide is dissolved in a nepodin-insoluble solvent such as water and the pH is set to 7.5 to 11, preferably 8 to 10, is preferable. More preferably, the aqueous solution is a sodium hydrogen carbonate aqueous solution.
- the use concentration of the weak alkali component is not particularly limited as long as it is a concentration that gives a predetermined pH.
- an aqueous sodium hydrogen carbonate solution is preferably an aqueous solution of 0.01% to 10% (w / v) sodium hydrogen carbonate, more preferably an aqueous solution of 0.05% to 0.5% (w / v).
- Sodium aqueous solution is preferably an aqueous solution of 0.01% to 10% (w / v) sodium hydrogen carbonate, more preferably an aqueous solution of 0.05% to 0.5% (w / v).
- the weak alkali treatment is not particularly limited as long as it is carried out under the condition that it can decompose impurities in the solid content of the rough extract and precipitate constructivegin as an insoluble component, for example, the solid extract of the rough extract and the weak alkaline solution And at a temperature of 10 to 30 ° C., preferably at room temperature, for several minutes to several hours to several days until a suspension is obtained.
- the mixture of the solid extract solid content and the weak alkali may be subjected to a commonly known suspending means such as stirring and ultrasonic waves.
- the weak alkali-insoluble matter obtained by the weak alkali treatment is in a state where the liquid component is removed, for example, as a solid content obtained by subjecting to a commonly known solid-liquid separation means such as centrifugation or filtration, in the subsequent step. used.
- the weak alkali-insoluble material may be subjected to the above-described drying treatment or pulverization treatment.
- the weak alkali-insoluble material obtained in the step (3) is subjected to a strong alkali treatment, whereby a strong alkali-soluble material is obtained as a soluble nepodin-containing component. obtain.
- the strong alkali is not particularly limited as long as it can dissolve nepodin in a weak alkali-insoluble material.
- a strong alkali component such as sodium hydroxide, potassium hydroxide, or calcium hydroxide is dissolved in a solvent such as water.
- a solution having a pH set to 11.5 to 14, preferably 12 to 14, is preferable, and an aqueous sodium hydroxide solution having a pH set to 12 to 14 is more preferable.
- the use concentration of the strong alkali component is not particularly limited as long as it is a concentration that gives a predetermined pH.
- a sodium hydroxide aqueous solution is preferably 0.01% to 10% (w / v) sodium hydroxide aqueous solution, more preferably 0.05% to 0.5% (w / v) hydroxide.
- Sodium aqueous solution is preferably 0.01% to 10% (w / v) sodium hydroxide aqueous solution, more preferably 0.05% to 0.5% (w / v) hydroxide.
- the strong alkali treatment is not particularly limited as long as it is carried out under the condition of dissolving nepodin in a weak alkali insoluble material to obtain a strong alkali dissolved material as a nepodin-containing component, for example, a weak alkali insoluble material and a strong alkaline solution For 10 minutes at a temperature of 10 to 30 ° C., preferably at room temperature, for a few minutes to a few hours.
- a mixture of a weak alkali insoluble material and a strong alkali may be subjected to a commonly known dissolution means such as stirring or ultrasonic waves.
- Strong alkaline lysate obtained by the strong alkali treatment is used in the subsequent steps as a liquid component obtained by removing the solids, for example, by being subjected to a commonly known solid-liquid separation means such as centrifugation or filtration. Is done.
- the strong alkali solution obtained in the step (4) is subjected to a neutralization treatment to neutralize the strong alkali solution, and the neutrality.
- a constructivegin-containing scouring extract is obtained as a solid insoluble in the solution.
- the neutralization treatment can be carried out, for example, using an acid capable of bringing the strong alkaline solution into a vicinity of neutrality, preferably a pH of about 6 to 8.
- the acid is not particularly limited as long as it is an acid that is usually used for neutralization treatment. Examples thereof include inorganic acids and organic acids such as acetic acid, hydrochloric acid, formic acid, sulfuric acid, and phosphoric acid. 3 acetic acid and hydrochloric acid.
- the acid may be a mixture with a nepodin insoluble solvent such as water.
- the neutralization treatment is not particularly limited as long as it is carried out under conditions that neutralize the strong alkaline solution and precipitate apardin as an insoluble component.
- the strong alkaline solution and acid are brought into contact with the suspension. Can be carried out at 10 to 30 ° C., preferably at room temperature, for several minutes to several hours to several days.
- the mixture of the strongly alkaline solution and the acid may be subjected to a commonly known suspending means such as stirring and ultrasonic waves.
- the volleyballgin-containing squeezed extract obtained by the neutralization treatment is preferably obtained as a solid content obtained by subjecting it to a generally known solid-liquid separation means such as centrifugation or filtration in a state where the liquid component is removed.
- the nepodin-containing extract when used as a raw material for an oral composition or an external composition, it is preferably washed with water or the like.
- the constructivegin-containing scouring extract may be subjected to a purification step.
- a constructivedin-containing scouring extract with reduced impurities as a liquid component can be obtained by solid-liquid separation of a mixture of a constructivedin-containing squeaky extract collected and washed with water and a volleyballdin-soluble solvent.
- the volleyballgin-containing stigmata extract obtained by the production method of one embodiment of the present invention is a sigmig-derived composition containing nepodin at a high concentration as compared with the prior art.
- the nepodin concentration (content) in the nepodin-containing scouring extract is not particularly limited, and is, for example, 20 wt% or more, preferably 30 wt% or more, more preferably 40 wt% or more, based on the dry mass of the nepogin-containing scouring extract.
- the recovery rate of constructivegin in the constructivegin-containing Gishigishi extract is, for example, 40% or more, preferably 50% or more, more preferably 60% or more, relative to the amount of constructivedin in the solid content of Gishigishi crude extract.
- the amount of the fatty acid or the complex thereof in the romancegin-containing extract is, for example, preferably 60 wt% or less, more preferably 40 wt% or less, and further preferably about 30 wt%.
- the nepodin-containing extract may contain by-products, and may contain about 1 to 15 wt%, preferably 10 wt% or less of nakahalene, which is a nepodin analog, and an anthraquinone such as emodin, chrysophanol, physcion and the like may be contained in an amount of about 1 to 10 wt%, preferably 8 wt% or less.
- Extraction treatment 30 is performed by adding 2 to 10 times by mass of ethanol to the stigma root and adding 5 to 15 times the ethanol to the squeeze root after pulverizing the dried stigma root 10 and weighing a predetermined amount.
- borage residue 20 is removed by solid-liquid separation means to obtain the burrow crude extract 11.
- water and a concentration treatment 31 are carried out by adding 0.2 to 0.5 times as much water to the obtained crude extract 11, and then subjecting it to vacuum concentration.
- the solid extract 12 is obtained by removing the rough extract liquid component 21 by the solid-liquid separation means.
- only the hydration treatment or only the concentration treatment may be performed.
- the obtained rough extract crude solid content 12 was subjected to weak alkali treatment 32 using 0.05 to 1% (w / v) weak alkaline aqueous solution (pH 8 to 10), and solid-liquid separation means was used. By removing the weak alkaline solution 22, the weak alkali insoluble material 13 is obtained.
- the obtained weak alkali-insoluble matter 13 was subjected to a strong alkali treatment 33 using 0.05 to 1% (w / v) strong alkaline aqueous solution (pH 12 to 14), and strong by solid-liquid separation means. By removing the alkali insoluble matter 23, a strong alkali soluble matter 14 is obtained.
- the obtained strong alkaline solution 14 is subjected to neutralization treatment 34 using an acid (pH 1 to 3) so that the pH of the solution becomes 7 to 8, and neutralized solution is obtained by solid-liquid separation means.
- an acid pH 1 to 3
- neutralized solution is obtained by solid-liquid separation means.
- the volleyballgin-containing scouring extract produced by the production method of one aspect of the present invention can be included in the present invention as another aspect.
- the constructivegin-containing squeeze extract of one aspect of the present invention is not particularly limited as long as it is a composition that is produced by the production method of one aspect of the present invention and contains constructivegin at a higher concentration than the conventional technique.
- the content of constructivegin per dry mass of the constructivegin-containing scouring extract is preferably 20 wt% or more from the viewpoint of the cost of producing a product by applying it as a raw material for an oral composition or an external composition, for example. More preferably, it is 30 wt% or more, and more preferably 40 wt% or more.
- the use of the socialdin-containing scouring extract of one embodiment of the present invention is not particularly limited.
- various effects can be obtained by activating AMPK such as glucose tolerance improving action, blood lipid concentration improving action, and metabolic syndrome improving action of romancedin.
- the composition can be used as a raw material for each composition such as an oral composition such as a food or drink or a pharmaceutical, or an external composition such as a cosmetic, or the composition itself.
- the content of constructivegin in the nepodin-containing scouring extract of one embodiment of the present invention can be measured by the method described in the examples described later.
- Example 1 Method for measuring apargin
- Nepogin-rich Gishigishi raw root extract production method (1) 500 g of fresh root of R. japonicus was added to 2.5 L of ethanol, and left at room temperature for 9 hours to obtain a rough extract of Gishigishi root. The obtained scouring root extract was suction filtered using a filter paper to obtain a scouring root extract. The nepogin concentration in the Gishigishi root extract concentrate obtained by concentrating a part of the crude Gishigishi root extract under reduced pressure was 2.8 wt%.
- a supernatant (2) containing an alkaline lysate and a precipitate (2) containing a strong alkali insoluble were obtained.
- the resulting supernatant (2) is mixed with 1 ml of acetic acid and gently shaken to precipitate the solid, and then separated by centrifugation (40 ⁇ 100 rpm, 20 minutes), and the supernatant containing acid lysate (3) and a precipitate (3) containing acid insolubles were obtained.
- the content of nepodin in the obtained precipitate (3) 25.8 mg was 13.1 mg, and the dry mass concentration of constructivedin in the precipitate (3) was 50.8 wt%.
- Nepogin-rich Gishigishi raw root extract production method (2) In 1 L of ethanol, 500 g of fresh root of R. japonicus was added and allowed to stand at room temperature for 8 hours to obtain a rough extract of Gishigishi root. The obtained scouring root crude extract was suction filtered using a diaphragm pump and a filter bottle to obtain a scouring root extract.
- the obtained solid content was added to 150 ml of a 0.1% (w / v) aqueous sodium hydrogen carbonate solution and stirred to obtain a suspension.
- the resulting suspension was separated by centrifugation (4,000 rpm, 10 minutes) to obtain a supernatant (1) and a precipitate (1).
- the obtained precipitate (1) was added to 150 ml of 0.1% (w / v) aqueous sodium hydroxide solution, stirred, and then separated by centrifugation (4,000 rpm, 30 minutes). 2) and a precipitate (2) were obtained.
- the resulting supernatant (2) is neutralized by adding an appropriate amount of acetic acid to precipitate a solid, and then separated by centrifugation (4,000 rpm, 10 minutes), and the supernatant (3) and the precipitate are separated.
- a product (3) was obtained.
- the amount of the dried precipitate (3) was 556 mg. Further, the concentration of nepogin in the dried precipitate (3) was 41.4 wt%.
- Example 4 Method for producing Nepodin-rich Goshigishi raw root extract (3)
- 500 g of fresh root of R. obtusifolius was added and allowed to stand at room temperature for 8 hours to obtain a rough extract of stigmatism .
- the obtained scouring root crude extract was suction filtered using a diaphragm pump and a filter bottle to obtain a scouring root extract.
- the obtained solid content was added to 100 ml of 0.1% (w / v) aqueous sodium hydrogen carbonate solution and stirred to obtain a suspension.
- the resulting suspension was separated by centrifugation (7,500 rpm, 10 minutes) to obtain a supernatant (1) and a precipitate (1).
- the obtained precipitate (1) was added to 200 ml of 0.1% (w / v) aqueous sodium hydroxide solution, stirred, and then separated by centrifugation (7,500 rpm, 10 minutes). 2) and a precipitate (2) were obtained.
- the resulting supernatant (2) is neutralized by adding an appropriate amount of acetic acid to precipitate a solid, and then separated by centrifugation (7,500 rpm, 10 minutes), and the supernatant (3) is precipitated.
- a product (3) was obtained.
- the amount of the dried precipitate (3) was 241.3 mg.
- the concentration of nepodin in the dried precipitate (3) was 40.5 wt%. The results are shown in Table 1.
- the weight of the Ezonogishigishi root extract is calculated by concentrating part of the solution.
- Example 5 Method for producing Nepodin-rich Gishigishi dried root extract (1)
- the roots of R. obtusifolius were dried with hot air at 40 ° C. for 8 hours to obtain dried roots of R. obtusifolius.
- 170 g of dried root of Ezonogishigishi was added to 1 L of ethanol, and allowed to stand at room temperature for 8 hours to obtain a crude extract of Gishigishi root.
- the obtained scouring root crude extract was suction filtered using a diaphragm pump and a filter bottle to obtain a scouring root extract.
- the obtained solid content was added to 100 ml of 0.1% (w / v) aqueous sodium hydrogen carbonate solution and stirred to obtain a suspension.
- the resulting suspension was separated by centrifugation (7,500 rpm, 10 minutes) to obtain a supernatant (1) and a precipitate (1).
- the obtained precipitate (1) was added to 200 ml of 0.1% (w / v) aqueous sodium hydroxide solution, stirred, and then separated by centrifugation (7,500 rpm, 10 minutes). 2) and a precipitate (2) were obtained.
- the resulting supernatant (2) is neutralized by adding an appropriate amount of acetic acid to precipitate a solid, and then separated by centrifugation (7,500 rpm, 10 minutes), and the supernatant (3) is precipitated.
- a product (3) was obtained.
- the amount of the dried precipitate (3) was 128.4 mg.
- the concentration of nepodin in the dried precipitate (3) was 22.7 wt%. The results are shown in Table 2.
- the weight of the Ezonogishigishi root extract is calculated by concentrating part of the solution.
- Rigid root (wet) 50 g was extracted with 100% ethanol at room temperature, 40 ° C., 60 ° C. or 80 ° C. Table 4 below shows the extract weight, content and content.
- Example 7 Production method of dried root extract with high content of nepodin (2)] 500 g of the root of R. obtusifolius was cut with a garden shredder (“GS-2010”, RYOBI), and then dried with hot air at 40 ° C. for 24 hours to obtain 100 g of dried stigma root. Next, dried borage root was added to 1 L of ethanol, and allowed to stand at room temperature for 8 hours to obtain a burrow root crude extract. The obtained scouring root crude extract was suction filtered using a diaphragm pump and a filter bottle to obtain a scouring root extract.
- GS-2010 garden shredder
- RYOBI RYOBI
- the obtained solid content was added to 100 ml of 0.1% (w / v) aqueous sodium hydrogen carbonate solution and stirred to obtain a suspension.
- the resulting suspension was separated by centrifugation (7,500 rpm, 10 minutes) to obtain a supernatant (1) and a precipitate (1).
- the obtained precipitate (1) was added to 200 ml of 0.1% (w / v) aqueous sodium hydroxide solution, stirred, and then separated by centrifugation (7,500 rpm, 10 minutes). 2) and a precipitate (2) were obtained.
- the resulting supernatant (2) is neutralized by adding an appropriate amount of acetic acid to precipitate a solid, and then separated by centrifugation (7,500 rpm, 10 minutes), and the supernatant (3) is precipitated.
- a product (3) was obtained.
- the amount of the dried precipitate (3) was 52 mg.
- the concentration of nepodin in the dried precipitate (3) was 39.6 wt%. The results are shown in Table 5.
- the weight of the Ezonogishigishi root extract is calculated by concentrating part of the solution.
- the fatty acid complex was contained in about 30%, among which the nepodin analog (8%; nakahalene) and anthraquinone represented by the following formula (2) (5%; emodin, chrysophanol, physcion).
- the solid content of the crude extract of borage root ethanol extracted with ethanol is further treated with water, a weak alkali, a strong alkali and an acid, so that a high concentration of narcissus root containing nepodin at a high concentration is obtained.
- An extract was obtained.
- the obtained Nepodin-rich burrow root extract contains constructivedin at a concentration several times higher than the previous burrow root ethanol crude extract, and is therefore useful as a nepodin-containing material derived from natural products. It is useful in producing economically advantageous.
- the present invention is useful in the field of pharmaceuticals and quasi-drugs.
- the present invention provides symptoms by activating AMPK such as a glucose tolerance improving agent, a blood lipid level reducing agent, and a preventive and / or therapeutic agent for metabolic syndrome. This is useful in that it can produce an active ingredient that can be incorporated into drugs and quasi drugs for diseases that can be improved.
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Abstract
Description
(1)ギシギシを、ネポジン可溶性溶媒を用いた抽出処理に供することにより、ギシギシ粗抽出物を得る工程
(2)前記ギシギシ粗抽出物を、加水処理及び/又は濃縮処理に供することにより、ギシギシ粗抽出物固形分を得る工程
(3)前記ギシギシ粗抽出物固形分を、弱アルカリ処理に供することにより、弱アルカリ不溶解物を得る工程
(4)前記弱アルカリ不溶解物を、強アルカリ処理に供することにより、強アルカリ溶解物を得る工程
(5)前記強アルカリ溶解物を、中和処理に供することにより、ネポジン含有ギシギシ抽出物を得る工程
好ましくは、本発明の一態様の製造方法において、前記弱アルカリ処理は、pH 8~10である弱アルカリ性水溶液を用いた弱アルカリ処理である。
好ましくは、本発明の一態様の製造方法において、前記弱アルカリ処理は、炭酸水素ナトリウムと水とを混合して得られ、かつ、pH 8~10である弱アルカリ性水溶液を用いた弱アルカリ処理である。
好ましくは、本発明の一態様の製造方法において、前記強アルカリ処理は、pH 12~14である強アルカリ性水溶液を用いた強アルカリ処理である。
好ましくは、本発明の一態様の製造方法において、前記強アルカリ処理は、水酸化ナトリウムと水とを混合して得られ、かつ、pH 12~14である強アルカリ性水溶液を用いた強アルカリ処理である。
好ましくは、本発明の一態様の製造方法において、前記中和処理は、pH 1~3である酸性水溶液を用いた中和処理である。
好ましくは、本発明の一態様の製造方法において、前記中和処理は、酢酸及び塩酸からなる群から選ばれる酸成分と水とを混合して得られ、かつ、pH 1~3である酸性水溶液を用いた中和処理である。
好ましくは、本発明の一態様の製造方法において、前記ネポジン含有ギシギシ抽出物は、20~40wt%のネポジンを含有するネポジン含有ギシギシ抽出物である。
好ましくは、本発明の一態様のネポジン含有ギシギシ抽出物は、本発明の一態様の製造方法によって得られるネポジン含有ギシギシ抽出物である。
本発明の一態様の製造方法は、ギシギシ粗抽出物の固形分を弱アルカリ処理、強アルカリ処理及び中和処理に供することにより、ネポジンを高含有するギシギシ抽出物を製造する方法に関する。本発明の第1の態様は、少なくとも以下の工程(1)~(5)を含む。
(1)ギシギシを、ネポジン可溶性溶媒を用いた抽出処理に供することにより、ギシギシ粗抽出物を得る工程
(2)前記ギシギシ粗抽出物を、加水処理及び/又は濃縮処理に供することにより、ギシギシ粗抽出物固形分を得る工程
(3)前記ギシギシ粗抽出物固形分を、弱アルカリ処理に供することにより、弱アルカリ不溶解物を得る工程
(4)前記弱アルカリ不溶解物を、強アルカリ処理に供することにより、強アルカリ溶解物を得る工程
(5)前記強アルカリ溶解物を、中和処理に供することにより、ネポジン含有ギシギシ抽出物を得る工程
ネポジンの含有量(mg)は、カラムとしてCOSMOSIL 5C18-AR-2カラム及び移動相としてMeOH:H2O=70:30 0.1%TFAを用いて、流速1ml/min、測定波長225.0nmに設定して、約11~12分のリテンション・タイムを有するピークとして検量線法により測定した。
エタノール 2.5Lの中にギシギシ(R.japonicus)の生根 500gを加え、室温で、9時間静置して、ギシギシ根粗抽出物を得た。得られたギシギシ根粗抽出物をろ紙を用いて吸引ろ過して、ギシギシ根粗抽出液を得た。ギシギシ根粗抽出液の一部を減圧濃縮して得られたギシギシ根抽出液濃縮物におけるネポジン濃度は2.8wt%であった。
エタノール 1Lの中にギシギシ(R.japonicus)の生根 500gを加え、室温で、8時間静置して、ギシギシ根粗抽出物を得た。得られたギシギシ根粗抽出物をダイヤフラムポンプ及びろ過瓶を用いて吸引ろ過して、ギシギシ根粗抽出液を得た。
エタノール 1Lの中にエゾノギシギシ(R.obtusifolius)の生根 500gを加え、室温で、8時間静置して、ギシギシ根粗抽出物を得た。得られたギシギシ根粗抽出物をダイヤフラムポンプ及びろ過瓶を用いて吸引ろ過して、ギシギシ根粗抽出液を得た。
エゾノギシギシ(R.obtusifolius)の根を熱風により40℃で8時間乾燥してエゾノギシギシ乾燥根を得た。次いで、エタノール 1Lの中にエゾノギシギシの乾燥根 170gを加え、室温で、8時間静置して、ギシギシ根粗抽出物を得た。得られたギシギシ根粗抽出物をダイヤフラムポンプ及びろ過瓶を用いて吸引ろ過して、ギシギシ根粗抽出液を得た。
ギシギシ(R.japonicus)の低温真空乾燥物 50gを100%エタノール、80%エタノール又は60%エタノール 500mlのいずれかにより、室温で抽出した。下記表3に抽出物重量、含有率及び含有量を示す。
エゾノギシギシ(R.obtusifolius)の根 500gを、ガーデンシュレッダ(「GS-2010」、RYOBI社)で切断し、次いで40℃で24時間温風乾燥を行ない、100gの乾燥ギシギシ根を得た。次いで、エタノール 1Lの中に乾燥ギシギシ根を加え、室温で、8時間静置して、ギシギシ根粗抽出物を得た。得られたギシギシ根粗抽出物をダイヤフラムポンプ及びろ過瓶を用いて吸引ろ過して、ギシギシ根粗抽出液を得た。
11 ギシギシ粗抽出物
12 ギシギシ粗抽出物固形分
13 弱アルカリ不溶解物
14 強アルカリ溶解物
15 ネポジン含有ギシギシ抽出物
20 ギシギシ残渣
21 ギシギシ粗抽出物液体成分
22 弱アルカリ溶解物
23 弱アルカリ不溶解物
24 中和溶液溶解物
30 抽出処理
31 加水処理及び濃縮処理
32 弱アルカリ処理
33 強アルカリ処理
34 中和処理
Claims (10)
- 以下の工程(1)~(5)を含む、ネポジン含有ギシギシ抽出物の製造方法。
(1)ギシギシを、ネポジン可溶性溶媒を用いた抽出処理に供することにより、ギシギシ粗抽出物を得る工程
(2)前記ギシギシ粗抽出物を、加水処理及び/又は濃縮処理に供することにより、ギシギシ粗抽出物固形分を得る工程
(3)前記ギシギシ粗抽出物固形分を、弱アルカリ処理に供することにより、弱アルカリ不溶解物を得る工程
(4)前記弱アルカリ不溶解物を、強アルカリ処理に供することにより、強アルカリ溶解物を得る工程
(5)前記強アルカリ溶解物を、中和処理に供することにより、ネポジン含有ギシギシ抽出物を得る工程 - 前記ネポジン可溶性溶媒が、20~100%(v/v)エタノールである、請求項1に記載のネポジン含有ギシギシ抽出物の製造方法。
- 前記弱アルカリ処理は、pH 8~10である弱アルカリ性水溶液を用いた弱アルカリ処理である、請求項1に記載のネポジン含有ギシギシ抽出物の製造方法。
- 前記弱アルカリ処理は、炭酸水素ナトリウムと水とを混合して得られ、かつ、pH 8~10である弱アルカリ性水溶液を用いた弱アルカリ処理である、請求項1に記載のネポジン含有ギシギシ抽出物の製造方法。
- 前記強アルカリ処理は、pH 12~14である強アルカリ性水溶液を用いた強アルカリ処理である、請求項1に記載のネポジン含有ギシギシ抽出物の製造方法。
- 前記強アルカリ処理は、水酸化ナトリウムと水とを混合して得られ、かつ、pH 12~14である強アルカリ性水溶液を用いた強アルカリ処理である、請求項1に記載のネポジン含有ギシギシ抽出物の製造方法。
- 前記中和処理は、pH 1~3である酸性水溶液を用いた中和処理である、請求項1に記載のネポジン含有ギシギシ抽出物の製造方法。
- 前記中和処理は、酢酸及び塩酸からなる群から選ばれる酸成分と水とを混合して得られ、かつ、pH 1~3である酸性水溶液を用いた中和処理である、請求項1に記載のネポジン含有ギシギシ抽出物の製造方法。
- 前記ネポジン含有ギシギシ抽出物は、20~40wt%のネポジンを含有するネポジン含有ギシギシ抽出物である、請求項1に記載のネポジン含有ギシギシ抽出物の製造方法。
- 請求項1~9のいずれか1項に記載の製造方法によって得られる、20~40wt%のネポジンを含有し、かつ、60wt%以下の脂肪酸を含有する、ネポジン含有ギシギシ抽出物。
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|---|---|---|---|
| US16/089,370 US10500242B2 (en) | 2016-03-31 | 2017-02-21 | Method of producing high-nepodin-containing rumex plant extract and high-nepodin-containing rumex plant extract |
| CN201780020679.2A CN108883144A (zh) | 2016-03-31 | 2017-02-21 | 含有高浓度酸模素的酸模属植物提取物的制造方法和含有高浓度酸模素的酸模属植物提取物 |
| JP2018508585A JP6876679B2 (ja) | 2016-03-31 | 2017-02-21 | ネポジン高含有ギシギシ抽出物の製造方法及びネポジン高含有ギシギシ抽出物 |
| EP17773859.8A EP3437648A4 (en) | 2016-03-31 | 2017-02-21 | METHOD FOR PRODUCING A NEPODINOUS EXTRACT FROM AMPFER AND NEPODINE EXTRACT FROM AMP |
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| JP2016-071165 | 2016-03-31 | ||
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| WO2019009354A1 (ja) * | 2017-07-05 | 2019-01-10 | 株式会社沖縄リサーチセンター | 排尿障害改善用組成物 |
| JP2022127020A (ja) * | 2021-02-19 | 2022-08-31 | 合同会社天然資源研究開発センター | 高純度月桃抽出物及びその製造方法 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5356310A (en) * | 1976-10-30 | 1978-05-22 | Nippon Zoki Pharmaceutical Co | Extraction of naphthalin derivative from polygonum and antibacterial medicine for external use of naphthalin derivative |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5166375A (en) * | 1990-08-09 | 1992-11-24 | Nippon Oil And Fats Company, Limited | Antioxidant and an oxidation resistant polyunsaturated oil |
| CN101967088A (zh) * | 2010-06-28 | 2011-02-09 | 南京泽朗医药科技有限公司 | 一种酸模素的提取纯化方法 |
| WO2012014524A1 (ja) | 2010-07-30 | 2012-02-02 | 株式会社エリナ | 糖代謝改善用組成物及びその組成物を含有する医薬製剤 |
-
2017
- 2017-02-21 EP EP17773859.8A patent/EP3437648A4/en not_active Withdrawn
- 2017-02-21 US US16/089,370 patent/US10500242B2/en active Active
- 2017-02-21 WO PCT/JP2017/006435 patent/WO2017169311A1/ja not_active Ceased
- 2017-02-21 JP JP2018508585A patent/JP6876679B2/ja active Active
- 2017-02-21 CN CN201780020679.2A patent/CN108883144A/zh active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5356310A (en) * | 1976-10-30 | 1978-05-22 | Nippon Zoki Pharmaceutical Co | Extraction of naphthalin derivative from polygonum and antibacterial medicine for external use of naphthalin derivative |
Non-Patent Citations (2)
| Title |
|---|
| See also references of EP3437648A4 * |
| TSUTOMU ODANI ET AL.: "Studies on the Antifungal Substance of Crude Drug. I : The Root of Rumex japonicus HOUTT", THE JAPANESE JOURNAL OF PHARMACOGNOSY, vol. 31, no. 2, 1977, pages 151 - 154, XP009514837, ISSN: 0037-4377 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019009354A1 (ja) * | 2017-07-05 | 2019-01-10 | 株式会社沖縄リサーチセンター | 排尿障害改善用組成物 |
| JP2022127020A (ja) * | 2021-02-19 | 2022-08-31 | 合同会社天然資源研究開発センター | 高純度月桃抽出物及びその製造方法 |
| JP7727960B2 (ja) | 2021-02-19 | 2025-08-22 | 合同会社天然資源研究開発センター | 高純度月桃抽出物及びその製造方法 |
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| US20190105363A1 (en) | 2019-04-11 |
| JPWO2017169311A1 (ja) | 2019-02-07 |
| JP6876679B2 (ja) | 2021-05-26 |
| US10500242B2 (en) | 2019-12-10 |
| EP3437648A1 (en) | 2019-02-06 |
| CN108883144A (zh) | 2018-11-23 |
| EP3437648A4 (en) | 2019-11-20 |
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