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US 2025/0026865 A1Published application
Hyaluronic acid powder
AssigneeKewpie Corporation
InventorsShunichi FUJIKAWA, Mizuka OGURA
Life of this patent
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Abstract
Provided is hyaluronic acid powder including: hyaluronic acid particles, in which the hyaluronic acid particles contain hyaluronic acid and/or a salt thereof having an average molecular weight of greater than or equal to 1,500,000, and a content of the hyaluronic acid particles having a particle diameter of less than or equal to 100 micrometers is 0 mass % to 35 mass % based on a total mass of the hyaluronic acid powder.
Claims13
Hyaluronic acid powder comprising:
- hyaluronic acid particles,
- wherein the hyaluronic acid particles comprise hyaluronic acid and/or a salt thereof having an average molecular weight of greater than or equal to 1,500,000,
- wherein a content of the hyaluronic acid particles having a particle diameter of less than or equal to 100 μm is 0 mass % to 35 mass % based on a total mass of the hyaluronic acid powder, and
- wherein a relative standard deviation of a particle size distribution is less than or equal to 0.30%.
1 more element
A method for selecting a raw material hyaluronic acid powder used in a method for producing cross-linked hyaluronic acid and/or a salt thereof,
- wherein the raw material hyaluronic acid powder comprises hyaluronic acid particles,
- wherein the hyaluronic acid particles comprise hyaluronic acid and/or a salt thereof having an average molecular weight of greater than or equal to 1,500,000, and
- wherein a content of the hyaluronic acid particles having a particle diameter of less than or equal to 100 μm is 0 mass % to 35 mass % based on a total mass of the hyaluronic acid powder.
Dependencies are inferred from the claim text.