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US 6,440,692 B1Granted
Method of treating hairs or feathers using microorganisms
AssigneeJapan Institute of Leather Research
InventorsYoh-ichi Koyama, Koki Suzuki, Koki Ogata, Masashi Kusubata, Shinkichi Irie
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Abstract
Large amounts of hairs and feathers can be decomposed and refined by treatment in an oxygen-containing gas stream with a fungus that can decompose hairs and feathers. The resulting decomposed and refined hairs and feathers are useful as a fertilizer.
Claims6
A process for preparing a powder of decomposed, refined hairs or feathers comprising:
- decomposing hairs or feathers by treating said hairs or feathers in an oxygen-containing gas stream with Chrysosporium keratinophilum (FERM BP-7099);
- converting the decomposed hairs or feathers into a powder;
- and
- recovering the powder.
1 more element
Dependencies are inferred from the claim text.