Patent ID: 11932892
Assignee: BIOEXTRAX AB
Field: Biotechnology (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. A process for production of keratin microfibers from feather material, the process comprising:
a) Providing a fermentation medium;
b) Providing feather material at a concentration of at least 25 grams dry weight/L of fermentation medium;
c) Providing a keratin-degrading bacteria;
d) Contacting the fermentation medium, the feather material and the keratin-degrading bacteria, and thereby fermenting the feather material to obtain a fermented composition;
e) Separating the fermented composition obtained in step d) into one supernatant fraction and one precipitate fraction, wherein the precipitate fraction obtained in the separation step comprises keratin microfibers, thereby obtaining keratin microfibers, wherein said keratin microfibers comprise at least 75% dry weight keratin, and wherein said microfibers have a length of between 20 μm and 200 μm and a diameter of between 1 μm and 10 μm, and wherein said keratin microfibers comprise hollow cylindrical structures.