| 摘要 |
Oligopeptide compositions are obtained by hydrolysis of a keratin material wherein the material is subjected to a sensitising treatment carried out with an electrolyte in an aqueous medium at a concentration of at least 8 mols per litre, or with a polar solvent, or where the keratin material is in the form of keratin with a cuticle, with at least one cuticle-removing agent which is ultrasound or formic acid at a concentration of at least 90% by weight, as cuticle-removing agent. |
