Explanatory notes
… in food preparations, for bacterial cultures, etc. (2) Peptonates are derivatives of peptones. They are used … , the main soya protein. (4) Keratins obtained from hair, nails, horns, hoofs, feathers, etc. (5) Nucleoproteids , … . Hide powder is used for the determination of tannin in natural tanning materials and in vegetable tanning extracts. …