摘要:
A crystal of pyrroloquinoline quinone disodium salt having peaks at 2θ of 9.1°, 10.3°, 13.8°, 17.7°, 18.3°, 24.0°, 27.4°, 31.2° and 39.5° (±0.2° for each) in powder X-ray diffractometry using Cu Kα radiation, or a crystal of pyrroloquinoline quinone trisodium salt having peaks at 2θ of 6.6°, 11.4°, 13.0°, 22.6°, 26.9°, 27.9°, 37.0°, 38.9° and 43.4° (±0.2° for each) in powder X-ray diffractometry using Cu Kα radiation.
摘要:
A crystal of pyrroloquinoline quinone disodium salt having peaks at 2θ of 9.1°, 10.3°, 13.8°, 17.7°, 18.3°, 24.0°, 27.4°, 31.2° and 39.5° (±0.2° for each) in powder X-ray diffractometry using Cu Kα radiation, or a crystal of pyrroloquinoline quinone trisodium salt having peaks at 2θ of 6.6°, 11.4°, 13.0°, 22.6°, 26.9°, 27.9°, 37.0°, 38.9° and 43.4° (±0.2° for each) in powder X-ray diffractometry using Cu Kα radiation.
摘要:
An object of the present invention is to provide a method for conveniently producing reduced pyrroloquinoline quinone from oxidized pyrroloquinoline quinone without needing expensive equipment, and a method for stabilizing reduced pyrroloquinoline quinone. According to the present invention, high-quality reduced pyrroloquinoline quinone can be obtained conveniently and efficiently in a manner suitable for industrial-scale production by mixing pyrroloquinoline quinone and ascorbic acid in a solvent.
摘要:
An object of the present invention is to provide a method for conveniently producing pyrroloquinoline quinone in the free form without any organic solvent or ion-exchange resin and highly-pure crystals thereof. According to the present invention, there is provided a production method of pyrroloquinoline quinone in the free form and highly-pure crystals thereof, wherein the production method comprises preparing a solution having a pH of 1.5 or less by dissolving an alkali metal salt of pyrroloquinoline quinone to obtain a precipitate.
摘要:
An object of the present invention is to provide an industrially useful method for producing a calcium salt of pyrroloquinoline quinone, without using large amounts of organic solvents, and highly pure crystals produced thereby. According to the present invention, a highly pure calcium salt of pyrroloquinoline quinone can be produced by reacting an alkali metal salt of pyrroloquinoline quinone with a source of calcium ions.
摘要:
An object of the present invention is to provide an industrially useful method for producing a calcium salt of pyrroloquinoline quinone, without using large amounts of organic solvents, and highly pure crystals produced thereby. According to the present invention, a highly pure calcium salt of pyrroloquinoline quinone can be produced by reacting an alkali metal salt of pyrroloquinoline quinone with a source of calcium ions.
摘要:
An object of the present invention is to provide a gel containing pyrroloquinoline quinone that is capable of easily forming a gel near room temperature and is useful even in the food sector, and a method for producing the gel. According to the present invention, there is provided a gel containing pyrroloquinoline quinone that uses pyrroloquinoline quinone itself as a gelling agent and a method for producing the gel by adding a salt of pyrroloquinoline quinone to water and subsequently adjusting the temperature or the pH to reduce solubility.
摘要:
An object of the present invention is to provide a novel pyrroloquinoline quinone disodium crystal having excellent dispersibility in solvents and excellent permeability through skin, and a method for producing the pyrroloquinoline quinone disodium crystal with high efficiency. According to the present invention, provided are a novel pyrroloquinoline quinone disodium crystal which is produced by drying a crystal produced under specified conditions through a drying means such as lyophilization, ambient drying and vacuum drying, and a method for producing the pyrroloquinoline quinone disodium crystal.
摘要:
An object of the present invention is to provide a novel pyrroloquinoline quinone disodium crystal having excellent dispersibility in solvents and excellent permeability through skin, and a method for producing the pyrroloquinoline quinone disodium crystal with high efficiency. According to the present invention, provided are a novel pyrroloquinoline quinone disodium crystal which is produced by drying a crystal produced under specified conditions through a drying means such as lyophilization, ambient drying and vacuum drying, and a method for producing the pyrroloquinoline quinone disodium crystal.
摘要:
An object of the present invention is to provide a gel containing pyrroloquinoline quinone that is capable of easily forming a gel near room temperature and is useful even in the food sector, and a method for producing the gel. According to the present invention, there is provided a gel containing pyrroloquinoline quinone that uses pyrroloquinoline quinone itself as a gelling agent and a method for producing the gel by adding a salt of pyrroloquinoline quinone to water and subsequently adjusting the temperature or the pH to reduce solubility.