WO2023120367A1 - 経口組成物及びエルゴチオネインに由来する苦味を抑制する方法 - Google Patents
経口組成物及びエルゴチオネインに由来する苦味を抑制する方法 Download PDFInfo
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- WO2023120367A1 WO2023120367A1 PCT/JP2022/046208 JP2022046208W WO2023120367A1 WO 2023120367 A1 WO2023120367 A1 WO 2023120367A1 JP 2022046208 W JP2022046208 W JP 2022046208W WO 2023120367 A1 WO2023120367 A1 WO 2023120367A1
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- ergothioneine
- theanine
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES, NOT OTHERWISE PROVIDED FOR; PREPARATION OR TREATMENT THEREOF
- A23L33/00—Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof
- A23L33/10—Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof using additives
- A23L33/17—Amino acids, peptides or proteins
- A23L33/175—Amino acids
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K20/00—Accessory food factors for animal feeding-stuffs
- A23K20/10—Organic substances
- A23K20/142—Amino acids; Derivatives thereof
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES, NOT OTHERWISE PROVIDED FOR; PREPARATION OR TREATMENT THEREOF
- A23L33/00—Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof
- A23L33/10—Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof using additives
- A23L33/105—Plant extracts, their artificial duplicates or their derivatives
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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
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/41—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with two or more ring hetero atoms, at least one of which being nitrogen, e.g. tetrazole
- A61K31/4164—1,3-Diazoles
- A61K31/4172—Imidazole-alkanecarboxylic acids, e.g. histidine
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/06—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite
- A61K47/16—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite containing nitrogen, e.g. nitro-, nitroso-, azo-compounds, nitriles, cyanates
- A61K47/18—Amines; Amides; Ureas; Quaternary ammonium compounds; Amino acids; Oligopeptides having up to five amino acids
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P17/00—Drugs for dermatological disorders
- A61P17/18—Antioxidants, e.g. antiradicals
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P37/00—Drugs for immunological or allergic disorders
- A61P37/02—Immunomodulators
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
Definitions
- the present invention relates to an oral composition containing ergothioneine or a salt thereof and theanine.
- the present invention also relates to a method for suppressing bitterness derived from ergothioneine.
- Ergothioneine is one of the hydrophilic sulfur-containing amino acids and is known to have various physiological activities including antioxidant ability.
- Patent Document 1 reports immune response activation cytokine production promotion action and the like.
- ergothioneine has attracted attention as a food, cosmetic, and pharmaceutical product because of its various physiological activities.
- Patent Document 2 describes adjusting the pH of a composition containing ergothioneine and/or a derivative thereof and/or incorporating a storage stabilizer into the composition.
- a method of inhibiting odor and/or discoloration characterized by:
- ergothioneine since ergothioneine has useful physiological activities, foods such as supplements containing ergothioneine or salts thereof are useful for maintaining or promoting health. However, ergothioneine or a salt thereof has a peculiar flavor, particularly a tongue-stinging bitterness (bitterness), and there is room for improvement in making it an oral composition.
- the present invention includes the following compositions and the like.
- An oral composition comprising (A) ergothioneine or a salt thereof and (B) theanine.
- the weight ratio ((B)/(A)) of component (B) (in terms of L-glutamic acid- ⁇ -ethylamide) to component (A) (in terms of ergothioneine) is 2 to 90.
- [3] The composition according to [1] or [2] above, which is a food or drink product.
- a method for suppressing bitterness derived from ergothioneine or a salt thereof in an oral composition containing ergothioneine or a salt thereof comprising the step of blending (B) theanine derived from ergothioneine or a salt thereof method of suppressing the bitterness that causes [5]
- the weight ratio ((B)/(A)) of component (B) (in terms of L-glutamic acid- ⁇ -ethylamide) to component (A) (in terms of ergothioneine) in the oral composition is 2 to 90.
- Use of (B) theanine for suppressing bitterness derived from (A) ergothioneine or a salt thereof comprising the step of blending (B) theanine derived from ergothioneine or a salt thereof.
- an oral composition containing ergothioneine or a salt thereof with reduced bitterness derived from ergothioneine or a salt thereof ADVANTAGE OF THE INVENTION
- the method of suppressing the bitterness which originates in ergothioneine or its salt in the oral composition containing ergothioneine or its salt can be provided.
- composition of the present invention is an oral composition containing (A) ergothioneine or a salt thereof and (B) theanine.
- Ergothioneine is a kind of sulfur-containing amino acid.
- ergothioneine is preferably L-ergothioneine.
- the salt of ergothioneine is not particularly limited as long as it is a pharmacologically acceptable salt or a salt acceptable for food and drink, and may be either an acid salt or a basic salt.
- Acid salts include, for example, inorganic salts such as hydrochlorides, sulfates, nitrates, phosphates; Examples include organic acid salts such as acid salts and propionate salts.
- Examples of basic salts include alkali metal salts such as sodium salts and potassium salts; alkaline earth metal salts such as calcium salts and magnesium salts;
- Ergothioneine or a salt thereof is not at all limited by its form, production method, and the like. Ergothioneine or a salt thereof may be a chemically synthesized product, or may be extracted and purified from natural products. A large amount of L-ergothioneine is contained in Golden/Yellow Oyster Mushroom (scientific name: Pleurotus cornucopiae var. citrinopileatus), which is a mushroom belonging to the genus Oyster mushroom of the family Oysteraceae.
- Golden/Yellow Oyster Mushroom scientific name: Pleurotus cornucopiae var. citrinopileatus
- L-ergothioneine is used in white button mushrooms, crimini mushrooms, portabella mushrooms such as Agaricus bisporus, Gray Oyster Mushroom (Pleurotus ostreatus), shiitake (Lentinula edodes), maitake (Scientific name: Grifola frondosa), Ganoderma lucidum (Scientific name: Ganoderma lucidum), Hericium erinaceus (Scientific name: Hericium erinaceus), Willow matsutake (Scientific name: Agrocybe aegerita), Chanterelle (Scientific name: Cantharellus cibarius), Porcini (Scientific name: Name: Boletus edulis), Morels ( It is also contained in mushrooms such as Morchella esculenta (scientific name: Morchella esculenta).
- L-ergothioneine When L-ergothioneine is obtained from a natural product, it is preferably extracted from Pleurotus cornucopia. Ergothioneine or a salt thereof can also be produced by microbial fermentation. Ergothioneine or a salt thereof may be isolated. As the ergothioneine or a salt thereof, for example, one derived from Pleurotus cornucopia can be used, and the composition of the present invention may or may not contain dried Pleurotus cornucopia.
- Theanine is a kind of amino acid and a derivative of glutamic acid, and is one of the umami components of tea.
- Theanine has a unique flavor (a persistent unpleasant aftertaste due to the coexistence of excessive umami with a slight sweetness).
- the composition of the present invention has reduced bitterness derived from ergothioneine or a salt thereof. Therefore, continuous intake of ergothioneine or a salt thereof is facilitated.
- the flavor derived from theanine can be suppressed.
- theanine examples include L-glutamic acid- ⁇ -ethylamide (L-theanine), L-glutamic acid- ⁇ -methylamide, D-glutamic acid- ⁇ -ethylamide (D-theanine) and D-glutamic acid- ⁇ -methylamide. mentioned. One or a combination of two or more of these can be used as theanine.
- Theanine is selected from the group consisting of L-glutamic acid- ⁇ -ethylamide (L-theanine), L-glutamic acid- ⁇ -methylamide, D-glutamic acid- ⁇ -ethylamide (D-theanine) and D-glutamic acid- ⁇ -methylamide is one of the preferred embodiments of the present invention. L-theanine and D-theanine are more preferred as theanine, and L-theanine is even more preferred.
- the theanine used in the present invention is not limited by its form, production method, etc., and chemically synthesized products may be used, and those extracted and purified from natural products may be used.
- Specific examples of the method for producing theanine include a separation and purification method from tea leaves, a tissue culture method using tea cells, and a method utilizing an enzymatic reaction.
- a method using an enzymatic reaction there is a method in which a mixture of glutamine and ethylamine is reacted with glutaminase to obtain theanine, and theanine produced in this way is also available as a commercial product.
- Theanine obtained by an enzymatic reaction is preferably used as theanine (L form) in the present invention.
- theanine for example, one derived from green tea leaves can be used, and the composition of the present invention may or may not contain green tea leaves.
- the weight ratio of component (B) (in terms of L-glutamic acid- ⁇ -ethylamide) to component (A) (in terms of ergothioneine) is not particularly limited, but may be 1 to 100, and the weight ratio of component (B) (L-glutamic acid- ⁇ -ethylamide conversion) to component (A) (ergothioneine conversion) is the above.
- the bitterness derived from the component (A) can be sufficiently suppressed.
- the weight ratio is preferably from 2 to 90, whereby the flavor derived from the component (B) can be sufficiently suppressed, and the composition becomes easier to ingest.
- the weight ratio is more preferably 3-80, still more preferably 5-70, particularly preferably 8-60, and most preferably 10-50.
- the amount in terms of ergothioneine or a similar expression means the amount in the case of ergothioneine, and in the case of a salt of ergothioneine, the value obtained by multiplying the number of moles of the salt by the molecular weight of ergothioneine. means.
- the content of ergothioneine or a salt thereof contained in the composition of the present invention is not particularly limited, and can be set according to its form and the like.
- the content of ergothioneine or a salt thereof in the composition of the present invention is preferably 0.1% by weight or more, more preferably 0.5% by weight or more, more preferably 0.6% by weight in terms of ergothioneine in the composition.
- the content of ergothioneine or a salt thereof is preferably 0.1 to 50% by weight, more preferably 0.5 to 40% by weight, more preferably 0.6 to 30% by weight in terms of ergothioneine in the composition of the present invention. % by weight is more preferred, 0.8 to 20% by weight is even more preferred, and 1 to 10% by weight is particularly preferred.
- the content of ergothioneine can be measured by a high performance liquid chromatography (HPLC) method.
- the content of theanine contained in the composition of the present invention is not particularly limited, and can be set according to its form and the like.
- the total content of theanine in the composition of the present invention is, for example, preferably 1% by weight or more, more preferably 1.5% by weight or more, still more preferably 2% by weight or more, and 2.5% by weight in the composition.
- the total content of theanine in the composition of the present invention is preferably 1 to 90% by weight, more preferably 1.5 to 85% by weight, in terms of L-glutamic acid- ⁇ -ethylamide.
- the above total content is the total content when two or more theanines are contained.
- the content of theanine can be measured by HPLC method.
- the content of ergothioneine or a salt thereof is preferably 1 to 100 mg, more preferably 2 to 50 mg, more preferably 5 to 25 mg in terms of ergothioneine per day for adults. more preferably 5 to 20 mg, particularly preferably 5 to 20 mg.
- the content of theanine in the composition of the present invention is preferably 10 to 2000 mg, more preferably 20 to 1000 mg, and more preferably 50 mg in terms of L-glutamic acid- ⁇ -ethylamide per day for adults. More preferably ⁇ 500 mg.
- Ergothioneine or its salts and theanine are compounds that are contained in natural products and foods and drinks and have been eaten. Therefore, from the viewpoint of safety, it is considered that ergothioneine or its salt and theanine, for example, can be ingested every day without any problems. According to the present invention, it is possible to provide a composition that is highly safe, has reduced bitterness derived from ergothioneine or a salt thereof, and is easy to ingest.
- ergothioneine or a salt thereof is known to exhibit various physiological activities and health functions.
- UV absorption effect, melanin production inhibitory effect, reactive oxygen species scavenging effect, elastase activity inhibitory effect, wrinkle formation inhibitory effect, skin sagging inhibitory effect, autophagy promoting effect, etc. are known. Therefore, the composition of the present invention is used for antioxidant, brain function improvement, anti-aging, eye disease, whitening, ultraviolet absorption, suppression of melanin production, elimination of reactive oxygen species, and inhibition of elastase activity. , for suppressing wrinkle formation, for suppressing skin sagging, for promoting autophagy, and the like.
- Theanine has a relaxing effect, a stress control effect, a sleep promoting effect, a neuroprotective effect, a memory and concentration enhancing effect, a high blood pressure preventive effect, an effect to improve sensitivity to cold, and an improvement in the symptoms of premenstrual syndrome and menopausal disorders. It is known to exert various health functions such as the effect of Since the composition of the present invention contains theanine, it can also be used to obtain the above effects exhibited by theanine.
- compositions of the present invention can be applied for either therapeutic use (medical use) or non-therapeutic use (non-medical use).
- Non-therapeutic is a concept that does not involve medical intervention, i.e. human surgery, treatment or diagnosis.
- the composition of the present invention can be in the form of foods and beverages, pharmaceuticals, quasi-drugs, feeds, and the like.
- the composition of the present invention may be a material or formulation that is used by being blended in foods and beverages, pharmaceuticals, quasi-drugs, feeds, and the like.
- the composition of the present invention is an oral composition, and specific examples of the oral composition include food and drink, oral pharmaceuticals, quasi-drugs, feeds, etc., preferably food and drink or oral It is a pharmaceutical, more preferably a food or drink.
- the composition of the present invention can contain optional additives and optional ingredients as long as the effects of the present invention are not impaired.
- additives and ingredients can be selected according to the form of the composition, etc., and those generally usable for oral compositions such as food and drink, pharmaceuticals, quasi-drugs, and feeds can be used.
- the manufacturing method is not particularly limited, and it can be manufactured by a general method.
- the composition of the present invention may consist of ergothioneine or a salt thereof and theanine.
- the form of the oral composition of the present invention is not particularly limited, and may be solid (powder, granule, tablet, etc.), liquid, paste, or the like.
- composition of the present invention when used as a food or drink, ergothioneine or a salt thereof and theanine are blended with ingredients that can be used in food or drink (e.g., food materials, food additives used as necessary).
- ingredients that can be used in food or drink e.g., food materials, food additives used as necessary.
- Food and drink are not particularly limited, and examples thereof include general food and drink, health food, health supplement, health drink, food with function claims, food for specified health use, and food and drink for sick people.
- Health foods, health supplements, foods with function claims, foods for specified health use, etc. are, for example, fine granules, tablets, granules, powders, capsules, chewables, dry syrups, syrups, liquids, beverages, and drinks. It can be used as various formulation forms such as medicines and liquid foods.
- composition of the present invention When the composition of the present invention is used as a drug or quasi-drug, for example, ergothioneine or a salt thereof and theanine are blended with a pharmacologically acceptable carrier, an optional additive, etc. It can be used as pharmaceuticals or quasi-drugs in various dosage forms. Such carriers, additives, etc. may be those that can be used for pharmaceuticals or quasi-drugs and are pharmacologically acceptable. One or more of antioxidants, coloring agents and the like can be mentioned. Dosage forms for oral administration of pharmaceuticals or quasi-drugs include liquids, tablets, powders, fine granules, granules, sugar-coated tablets, capsules, suspensions, emulsions, chewables and the like.
- feed also includes feed additives.
- feeds include livestock feeds for cows, pigs, chickens, sheep, horses, etc.; small animal feeds for rabbits, rats, mice, etc.; pet foods for dogs, cats, small birds, etc.;
- Subjects to whom the composition of the present invention is ingested or administered are not particularly limited. Humans or non-human mammals are preferred, and humans are more preferred.
- the present invention also includes the following methods.
- a method for suppressing ergothioneine-derived bitterness in an oral composition containing ergothioneine or a salt thereof comprising the step of blending (B) theanine.
- B theanine.
- Adjustment of the weight ratio can be performed by adding component (A) and/or component (B), for example.
- the present invention also includes the following uses.
- ergothioneine or its salts and theanine and preferred embodiments thereof are the same as the compositions of the present invention described above.
- the mixing ratio and amount of component (B) (in terms of L-glutamic acid- ⁇ -ethylamide) to component (A) (in terms of ergothioneine) are not particularly limited, but a preferred range is is the same as the weight ratio of component (B) (converted to L-glutamic acid- ⁇ -ethylamide) to component (A) (converted to ergothioneine) in the composition of the present invention.
- the methods and uses described above can suppress bitterness derived from ergothioneine or salts thereof, and may be combined with other methods of suppressing bitterness.
- Other methods for suppressing bitterness include, for example, a method of adding a sweetening agent or a flavoring agent to a bitter component to prepare a formulation, a method of coating a bitter component with sugar coating to prepare a formulation, or a formulation by encapsulating the bitter component. and the like.
- a range represented by “1-2” means from 1 to 2 and includes 1 and 2.
- the upper limit and the lower limit may be any combination of ranges.
- Example 1 Flavor evaluation test for a composition containing ergothioneine and theanine> A composition containing ergothioneine and theanine was prepared and subjected to sensory evaluation by three panelists skilled in sensory evaluation. The amounts of (A) and (B) shown in Table 1 were mixed to prepare compositions of samples 1 to 5 (compositions containing ergothioneine and theanine). Table 1 shows the weight ratio of (B)/(A) in the compositions of Samples 1-5.
- Each of the three panelists put the total amount of the prepared composition (for example, in sample 1, a total of 20 mg of ergothioneine 10 mg and theanine 10 mg) directly on the tongue, and evaluated the strength of the bitterness derived from ergothioneine and the persistent aftertaste derived from theanine. Strength was evaluated according to the following criteria.
- (A) Evaluation criteria for bitterness derived from ergothioneine The intensity of the bitterness of (A) ergothioneine alone (10 mg) is set at 5 points (control 1), and the case where no bitterness derived from ergothioneine is felt is 1 point, 1 to 5 points ( 5 grades). Table 1 shows the average values (scores) of the evaluations of the three panelists. 5 points: feel the bitterness derived from ergothioneine strongly 4 points: feel the bitterness derived from ergothioneine 3 points: feel the bitterness derived from ergothioneine a little 2 points: do not feel the bitterness derived from ergothioneine much 1 point: do not feel the bitterness derived from ergothioneineine
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Abstract
Description
エルゴチオネインは、多様な生理活性を有することから、近年、食品用、化粧品用や医薬用として注目されている。
〔1〕下記の成分(A)及び(B):
(A)エルゴチオネイン又はその塩、及び、(B)テアニン、を含有する、経口組成物。
〔2〕成分(A)(エルゴチオネイン換算)に対する、成分(B)(L-グルタミン酸-γ-エチルアミド換算)の重量比((B)/(A))が、2~90である上記〔1〕に記載の組成物。
〔3〕飲食品である上記〔1〕又は〔2〕に記載の組成物。
〔4〕(A)エルゴチオネイン又はその塩を含有する経口組成物におけるエルゴチオネイン又はその塩に由来する苦味を抑制する方法であって、(B)テアニンを配合する工程を含む、エルゴチオネイン又はその塩に由来する苦味を抑制する方法。
〔5〕経口組成物中の成分(A)(エルゴチオネイン換算)に対する成分(B)(L-グルタミン酸-γ-エチルアミド換算)の重量比((B)/(A))が2~90となるように成分(B)を配合する、上記〔4〕に記載の方法。
〔6〕(B)テアニンの、(A)エルゴチオネイン又はその塩に由来する苦味を抑制するための使用。
エルゴチオネインの塩としては、薬理学的に許容される塩又は飲食品に許容される塩であれば特に限定されず、酸性塩及び塩基性塩のいずれであってもよい。酸性塩として、例えば、塩酸塩、硫酸塩、硝酸塩、リン酸塩等の無機酸塩;酢酸塩、クエン酸塩、マレイン酸塩、リンゴ酸塩、シュウ酸塩、乳酸塩、コハク酸塩、フマル酸塩、プロピオン酸塩等の有機酸塩等が挙げられる。塩基性塩として、例えば、ナトリウム塩、カリウム塩等のアルカリ金属塩;カルシウム塩、マグネシウム塩等のアルカリ土類金属塩等が挙げられる。
上記エルゴチオネイン又はその塩として、例えばタモギタケ由来のものを用いることができるが、本発明の組成物は、乾燥タモギタケを含んでいても含まないものであってもよい。
テアニンには特有の香味(過剰な旨味にわずかな甘みが共存することによる、しつこい嫌な後味。)がある。本発明の組成物は、テアニンを含むことによってエルゴチオネイン又はその塩に由来する苦味が低減されている。このため、エルゴチオネイン又はその塩の継続的な摂取が容易となる。
テアニンとエルゴチオネイン又はその塩と組み合わせることにより、テアニン由来の香味を抑制することもできる。
テアニンが、L-グルタミン酸-γ-エチルアミド(L-テアニン)、L-グルタミン酸-γ-メチルアミド、D-グルタミン酸-γ-エチルアミド(D-テアニン)及びD-グルタミン酸-γ-メチルアミドからなる群より選択される少なくとも1種である形態は、本発明の好ましい実施形態の1つである。
テアニンとしてより好ましくはL-テアニン、D-テアニンであり、更に好ましくはL-テアニンである。
酵素反応を利用する方法として、グルタミンとエチルアミンの混合物にグルタミナーゼを作用させてテアニンを得る方法があり、このように製造されたテアニンは市販品としても入手可能である。
酵素反応によって得られるテアニンは、本発明におけるテアニン(L体)として好適に用いられる。
上記テアニンとして、例えば緑茶葉由来のものを用いることができるが、本発明の組成物は、緑茶葉を含んでいても含まないものであってもよい。
上記重量比として好ましくは、2~90であり、これにより成分(B)に由来する香味も充分に抑制することができ、組成物がより摂取しやすいものとなる。上記重量比としてより好ましくは3~80であり、更に好ましくは5~70であり、特に好ましくは8~60であり、最も好ましくは10~50である。
本明細書中、エルゴチオネイン換算の量又はこれに類する表現は、エルゴチオネインの場合はその量を意味し、エルゴチオネインの塩の場合は、当該塩のモル数に、エルゴチオネインの分子量を乗じて得られる値を意味する。
本発明の組成物中のエルゴチオネイン又はその塩の含有量は、エルゴチオネイン換算で、例えば、該組成物中に0.1重量%以上が好ましく、0.5重量%以上がより好ましく、0.6重量%以上が更に好ましく、0.8重量%以上が更により好ましく、1重量%以上が特に好ましく、また、50重量%以下が好ましく、40重量%以下がより好ましく、30重量%以下が更に好ましく、20重量%以下が更により好ましく、10重量%以下が特に好ましい。一態様において、エルゴチオネイン又はその塩の含有量は、エルゴチオネイン換算で、本発明の組成物中に0.1~50重量%が好ましく、0.5~40重量%がより好ましく、0.6~30重量%が更に好ましく、0.8~20重量%が更により好ましく、1~10重量%が特に好ましい。エルゴチオネインの含有量は、高速液体クロマトグラフィー(HPLC)法により測定することができる。
本発明の組成物は、テアニンの含有量が、成人の1日摂取量当たり、L-グルタミン酸-γ-エチルアミド換算で10~2000mgであることが好ましく、20~1000mgであることがより好ましく、50~500mgであることが更に好ましい。
このため、本発明の組成物は、抗酸化用、脳機能改善用、抗老化用、眼疾患用、美白用、紫外線吸収用、メラニン産生抑制用、活性酸素種の消去用、エラスターゼ活性阻害用、シワ形成抑制用、肌のたるみ抑制用、オートファジー促進用等に好適に用いることができる。
本発明の組成物は、飲食品、医薬品、医薬部外品、飼料等の形態とすることができる。本発明の組成物は、飲食品、医薬品、医薬部外品、飼料等に配合して使用される素材又は製剤等であってもよい。
本発明の経口組成物の形態は特に限定されず、固体状(粉末状、顆粒状、タブレット状等)、液状、ペースト状等であってよい。
(A)エルゴチオネイン又はその塩を含有する経口組成物におけるエルゴチオネインに由来する苦味を抑制する方法であって、(B)テアニンを配合する工程を含む、エルゴチオネインに由来する苦味を抑制する方法。
経口組成物の調製において、成分(A)(エルゴチオネイン換算)に対する、成分(B)の重量比((B)/(A))を上記範囲に調整することで、エルゴチオネイン又はその塩に由来する苦味及びテアニンに由来する香味が抑制された経口組成物を得ることができる。上記重量比の調整は、例えば、成分(A)及び/又は成分(B)を添加することで行うことができる。
(B)テアニンの、(A)エルゴチオネイン又はその塩に由来する苦味を抑制するための使用。
上記の方法及び使用において、エルゴチオネイン又はその塩及びテアニン並びにそれらの好ましい態様は、上述した本発明の組成物と同じである。
また、上記の方法及び使用において、成分(A)(エルゴチオネイン換算)に対する、成分(B)(L-グルタミン酸-γ-エチルアミド換算)の配合比、使用量の割合は特に制限されないが、好ましい範囲としては、本発明の組成物における、成分(A)(エルゴチオネイン換算)に対する成分(B)(L-グルタミン酸-γ-エチルアミド換算)の重量比と同じである。
他の苦味抑制方法としては例えば、苦味を有する成分に甘味剤又は矯味剤を添加して製剤化する方法、苦味を有する成分を糖衣で被覆して製剤化する方法、又はカプセルに封入して製剤化する方法等が挙げられる。
(A)エルゴチオネイン:L-エルゴチオネイン100%含有原料
(B)テアニン:L-テアニン100%含有原料
エルゴチオネイン及びテアニンを含む組成物を調製し、官能評価に熟練したパネラー3名が官能評価を行った。
表1に示す量の上記(A)及び(B)を混合して、試料1~5の組成物(エルゴチオネイン及びテアニンを含む組成物)を調製した。試料1~5の組成物中の(B)/(A)の重量比を表1に示す。3名のパネラーがそれぞれ、調製した組成物の全量(例えば、試料1ではエルゴチオネイン10mgとテアニン10mgの合計20mg)を直接舌の上にのせて、エルゴチオネイン由来の苦味の強度、テアニン由来のしつこい後味の強度を以下の基準にしたがって評価した。
上記(A)エルゴチオネインのみ(10mg)の苦味の強度を5点とし(コントロール1)、エルゴチオネイン由来の苦味を感じない場合を1点として、1~5点(5段階)で評価した。
3名のパネラーの評価を集計し、平均値(点)を表1に示す。
5点:エルゴチオネイン由来の苦味を強く感じる
4点:エルゴチオネイン由来の苦味を感じる
3点:エルゴチオネイン由来の苦味を少し感じる
2点:エルゴチオネイン由来の苦味をあまり感じない
1点:エルゴチオネイン由来の苦味を感じない
上記(B)テアニンのみ(10mg)のしつこい後味の強度を5点とし(コントロール2)、テアニン由来のしつこい後味を感じない場合を1点として、1~5点(5段階)で評価した。
3名のパネラーの評価を集計し、平均値(点)を表1に示す。
5点:テアニン由来のしつこい後味を強く感じる
4点:テアニン由来のしつこい後味を感じる
3点:テアニン由来のしつこい後味を少し感じる
2点:テアニン由来のしつこい後味をあまり感じない
1点:テアニン由来のしつこい後味を感じない
エルゴチオネインとテアニンとを組み合わせることにより、エルゴチオネイン由来の苦味が抑制されることを確認した。
テアニンについても、テアニンのみではしつこい後味が強く摂取しにくいが、エルゴチオネインと組み合わせることにより、しつこい後味の程度が緩和されることを確認した。
Claims (6)
- 下記の成分(A)及び(B):
(A)エルゴチオネイン又はその塩、及び、
(B)テアニン、を含有する、経口組成物。 - 成分(A)(エルゴチオネイン換算)に対する、成分(B)(L-グルタミン酸-γ-エチルアミド換算)の重量比((B)/(A))が、2~90である、請求項1に記載の組成物。
- 飲食品である、請求項1又は2に記載の組成物。
- (A)エルゴチオネイン又はその塩を含有する経口組成物におけるエルゴチオネイン又はその塩に由来する苦味を抑制する方法であって、
(B)テアニンを配合する工程を含む、エルゴチオネイン又はその塩に由来する苦味を抑制する方法。 - 経口組成物中の成分(A)(エルゴチオネイン換算)に対する成分(B)(L-グルタミン酸-γ-エチルアミド換算)の重量比((B)/(A))が2~90となるように成分(B)を配合する、請求項4に記載の方法。
- (B)テアニンの、(A)エルゴチオネイン又はその塩に由来する苦味を抑制するための使用。
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| AU2022417968A AU2022417968A1 (en) | 2021-12-23 | 2022-12-15 | Oral composition and method for suppressing bitterness derived from ergothioneine |
| JP2023569371A JP7899224B2 (ja) | 2021-12-23 | 2022-12-15 | 経口組成物及びエルゴチオネインに由来する苦味を抑制する方法 |
| CN202280084303.9A CN118414094A (zh) | 2021-12-23 | 2022-12-15 | 口服组合物以及抑制来自麦角硫因的苦味的方法 |
| KR1020247024699A KR20240127427A (ko) | 2021-12-23 | 2022-12-15 | 경구 조성물 및 에르고티오네인에서 유래하는 쓴맛을 억제하는 방법 |
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| CN1748582B (zh) * | 2004-09-17 | 2011-03-09 | 太阳化学株式会社 | 风味改善组合物、饮食品和医药品以及改善饮食品和医药品风味的方法 |
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