Ossein

Ossein is the organic extracellular matrix of bone, which is made of 95% collagen. This substance is used in industry for the production of gelatin and bone glue.

In the early 20th century, bones were found to consist of three types of proteins: ossein (collagens), osseomucoid (proteoglycans) and osseoalbuminoid (elastin).[1] Advances in molecular biology rendered these terms obsolete.

  1. ^ Cantarow, Abraham; Schepartz, Bernard (1957). Biochemistry. Saunders. p. 711.