Collagen from achilles tendon

Insoluble, nondenatured, from bovine achilles tendon.

Prepared according to the method of Einbinder and Schubert (19) in which tendons are extracted with Na₂HPO₄ solution then KCl solution, de-salted, de-fatted, washed and lyophilized.

Contains less than 0.5% of insoluble matter after digestion with collagenase.

Suitable as a substrate for collagenase assay in the method of Mandl (20).