Explanatory notes
… when proteins are hydrolysed or submitted to the action of certain enzymes (pepsin, papain, pancreatin, etc.). They … for bacterial cultures, etc. (2) Peptonates are derivatives of peptones. They are used principally in pharmacy; the … protein. (4) Keratins obtained from hair, nails, horns, hoofs, feathers, etc. (5) Nucleoproteids , being proteins …