Hierarchy classification:

1. top of the aat hierarchies
2. Materials Facet
3. Materials (hierarchy name)
4. materials (substances)
5. [materials by origin]
6. biological material
7. animal material
8. processed animal material

Additional parents:

1. top of the aat hierarchies
2. Materials Facet
3. Materials
4. materials
5. materials by composition
6. organic material
7. protein
8. collagen

Narrower term/s

• photographic gelatin

Anotations

Scope note:

A water-soluble, tasteless colloidal form of processed collagen obtained from bones, hooves or skins and used as a dispersing agent, sizing medium, adhesive, or coating for photographic films, and stabilizer for foodstuffs and pharmaceutical preparations. Is high in molecular weight after processing, as opposed to more vigorously processed collagen which results in animal glue.