Hierarchy classification:

1. top of the aat hierarchies
2. Materials Facet
3. Materials (hierarchy name)
4. materials (substances)
5. [materials by composition]
6. organic material
7. protein

Anotations

Scope note:

Gelatinous protein that cements silk fibers together in the cocoon. Sericin is secreted along with fibroin by the insect. It is usually removed, by boiling the raw silk in soap and water, during fabric manufacture.