摘要:
A preparation for administration to animals, comprising a sparingly soluble L-ascorbic acid-2-phosphoric ester salt having a solubility in water of 10 wt % or less, the solubility being a value obtained by placing 100 g of purified water in a 200 ml-volume beaker, stirring the water while keeping the temperature at 20° C., adding 0.1 g of the L-ascorbic acid-2-phosphoric ester salt every 5 minutes by taking care not to cause gelation, and 30 minutes after the addition of L-ascorbic acid-2-phosphoric ester salt when the undissolved L-ascorbic acid-2-phosphoric ester salt is observed visually in the aqueous solution, determining the amount in weight percentage of L-ascorbic acid-2-phosphoric ester salt added based on water, and a method for feeding animals, using the preparation.
摘要:
An object of the present invention is to provide a composition for enhancing the immunological effects of a vaccine for viruses, bacteria and/or infectious disease pathogens, containing a stable activity-type provitamin; a method for enhancing the immunological effects of a vaccine for viruses, bacteria and/or infectious disease pathogens by administering the composition; and a method of employing the composition. A composition for enhancing the immunological effects of a vaccine for viruses, bacteria and/or infectious disease pathogens, contains L-ascorbic acid-2-phosphate and/or &agr;-tocopheryl phosphate as a stable activity antioxidant provitamin.
摘要:
The present invention relates to an agent for preventing and treating skin diseases comprising as an active ingredient an ascorbic acid derivative which is a compound represented by the following formula (1) or a salt thereof and which per se exhibits no anti-oxidation activity but is capable of transforming in vivo into a compound having an anti-oxidation activity; wherein R1 represents a group capable of bonding to the carbon at the 2-position of the ascorbic acid skeleton through an ether or ester bond and transformable in vivo into a hydroxyl group, and R2 to R4 may be the same or different and each represents a hydroxyl group or a group derived therefrom.
摘要:
L-Ascorbic acid 2-phosphate zinc salt and a salt hydrate thereof having excellent solubility and exhibiting good stability even under weakly acidic conditions. Also disclosed is a process of manufacturing L-ascorbic acid 2-phosphate zinc salt by displacing a cation of a salt of an L-ascorbic acid 2-phosphate other than a zinc salt with a zinc cation. Further disclosed is a composition containing L-ascorbic acid 2-phosphate zinc salt or a salt hydrate thereof as an active ingredient.
摘要:
Disclosed herein are a highly purified tocopheryl phosphate and/or a salt thereof (tocopheryl phosphates) wherein a P,P'-bistocopheryl hypophosphate and/or a salt thereof (P,P'-bistocopheryl diphoshates) is contained in a proportion of not higher than 3% by weight; a process for producing a highly purified tocopheryl phosphate and/or a salt thereof, which comprises the steps of reacting a tocopherol with an oxyphosphorus trihalide followed by treating with an acid or basic aqueous solution to thereby form tocopheryl phosphates (i) in which P,P'-bistocopheryl diphoshates (ii) formed as by-products are contained, hydrolyzing the P,P'-bistocopheryl diphoshates (ii) under acid condition, and, optionally, rendering the hydrolyzate neutral or basic under basic condition; and a method of analyzing tocopheryl phosphates, comprising analyzing a sample containing components (i) and (ii) with the use of a high-performance liquid chromatograph column packed with a gel of a polymethacrylate having, bonded thereto, long-chain alkyl groups. None or only an extremely minute amount of P,P'-bistocopheryl diphoshates are contained in the highly purified tocopheryl phosphates, so that the highly purified tocopheryl phosphates exhibit antioxidant and blood circulation promoting effects, have excellent water solubility, are powdery so that the handling thereof is extremely easy, are free from cutaneous irritation and allergenecity and ensure dermal safety. Therefore, the highly purified tocopheryl phosphates are useful as cosmetic ingredients. The amounts of components (i) and (ii) can be simply measured with high accuracy by the above method.
摘要:
A vitamin E source composition for administration to animals, which comprises a tocopheryl phosphate, a salt thereof or a composition containing a tocopheryl phosphate or a salt thereof. Also, disclosed is a method of supplying vitamin E to animals which comprises administering to animals the above vitamin E source composition. The tocopheryl phosphoric acid and a salt thereof can be formed into a composition and also can contain an antioxidant or the like.
摘要:
A novel ascorbic acid derivative having both sufficiently improved stability and liposolubility, and facilitated cellular uptake. Also disclosed is a process for producing the derivative and a composition capable of effectively providing the action of vitamin C, for use in medical preparations, agricultural chemicals, animal drugs, foods, feeds or cosmetic preparations. The ascorbic acid derivative is a compound represented by the following formula (1) or a salt thereof: ##STR1## wherein R represents an acyl group having eleven or more carbon atoms and n is 0, 1 or 2.
摘要:
An L-ascorbic acid drug for intracerebral administration comprising one or more stable activity L-ascorbic acid compounds and one or more blood brainbarrier deobstruents. Also disclosed is a method for increasing intracerebral concentration of L-ascorbic acid in a human being comprising administering by injection an L-ascorbic acid drug comprising one or more stable activity L-ascorbic acid compounds. Additionally disclosed is a method for increasing intracerebral concentration of L-ascorbic acid in a human being comprising administering by injection an L-ascorbic acid drug comprising one or more stable activity L-ascorbic acid compounds and one or more blood brainbarrier deobstruents. Also disclosed is a method for treating diseases or disorders that result from intracerebral bloodstream inhibition or intracerebral bloodstream lowering comprising administering by injection to a person in need of such treatment, a dosage effective amount of an L-ascorbic acid drug comprising one or more stable activity L-ascorbic acid compounds. Additionally disclosed is a method for treating diseases or disorders that result from intracerebral bloodstream inhibition or intracerebral bloodstream lowering comprising administering by injection to a person in need of such treatment, a dosage effective amount of an L-ascorbic acid drug comprising one or more stable activity L-ascorbic acid compounds and one or more blood brainbarrier deobstruents.
摘要:
A dermal agent for preventing or treating acne, comprising an ascorbic acid derivative which liberates in vivo ascorbic acid, and a zinc salt or comprising a zinc salt of the ascorbic acid-2-phosphate, and a composition comprising tretinoin and an ascorbic acid derivative or a salt thereof, relieving in the irritation of tretinoin by using the dermal agent and tretinoin in combination.
摘要:
Disclosed herein are a highly purified tocopheryl phosphate and/or a salt thereof (tocopheryl phosphates) wherein a P,P'-bistocopheryl hypophosphate and/or a salt thereof (P,P'-bistocopheryl diphoshates) is contained in a proportion of not higher than 3% by weight; a process for producing a highly purified tocopheryl phosphate and/or a salt thereof, which comprises the steps of reacting a tocopherol with an oxyphosphorus trihalide followed by treating with an acid or basic aqueous solution to thereby form tocopheryl phosphates (i) in which P,P'-bistocopheryl diphoshates (ii) formed as by-products are contained, hydrolyzing the P,P'-bistocopheryl diphoshates (ii) under acid condition, and, optionally, rendering the hydrolyzate neutral or basic under basic condition; and a method of analyzing tocopheryl phosphates, comprising analyzing a sample containing components (i) and (ii) with the use of a high-performance liquid chromatograph column packed with a gel of a polymethacrylate having, bonded thereto, long-chain alkyl groups. None or only an extremely minute amount of P,P'-bistocopheryl diphoshates are contained in the highly purified tocopheryl phosphates, so that the highly purified tocopheryl phosphates exhibit antioxidant and blood circulation promoting effects, have excellent water solubility, are powdery so that the handling thereof is extremely easy, are free from cutaneous irritation and allergenecity and ensure dermal safety. Therefore, the highly purified tocopheryl phosphates are useful as cosmetic ingredients. The amounts of components (i) and (ii) can be simply measured with high accuracy by the above method.