Sericin-containing powder and method for producing sericin-containing powder
A sericin-containing powder with a pH of 5.0 or less, produced using organic solvent extraction and acidic conditions, addresses the poor solubility and dispersibility of high-molecular-weight sericin, ensuring stable and easy formulation in cosmetics.
JP7765081B2Active Publication Date: 2025-11-06NAT AGRI & FOOD RES ORG
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Patent Information
- Application Number
- JP2022031782
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2022-03-02
- Publication Date
- 2025-11-06
- Estimated Expiration
- 2042-03-02
AI Technical Summary
Technical Problem
High-molecular-weight sericin has poor solubility and dispersibility, making it difficult to incorporate into cosmetic formulations, especially in powder form, and tends to gel over time when in solution.
Method used
A sericin-containing powder with a pH of 5.0 or less, containing high-molecular-weight sericin detected by SDS-PAGE, is produced using an organic solvent extraction and acidic conditions, followed by gel formation and drying, ensuring good dispersibility and stability.
Benefits of technology
The resulting powder maintains high-molecular-weight sericin with excellent dispersibility, preventing gelation during storage and facilitating easy incorporation into cosmetic formulations.
✦ Generated by Eureka AI based on patent content.
Abstract
To provide a sericin-containing powder with good dispersibility even though it contains high molecular weight sericin, and to provide a method for producing the same.SOLUTION: Provided is a sericin-containing powder that contains sericin and acid, the sericin being a sericin in which at least one band is detected in a range corresponding to a molecular weight of 150 kDa or more by SDS-PAGE method, and the pH being 5.0 or less when made into a 1.0 mass% aqueous dispersion.SELECTED DRAWING: None
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