Extraction of collagen from calcified tissues

US7109300B2 · kind B2 · utility

Assignee

• BOARD OF SUPERVISORS OF LOUISIANA STATE UNIVERSITY AND AGRICULTURAL AND MECHANICAL COLLEGE · US

Inventors

• Jack N. Losso · Baton Rouge, US
• Masahiro Ogawa · Ome, JP
• Ralph J. Portier · Baton Rouge, US
• Mark A. Schexnayder · Metairie, US

Key dates

• Filing date: Apr 18, 2005
• Grant date: Sep 19, 2006
• Expiry date: Aug 8, 2025

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07K14/78
• WIPO field: Biotechnology
• WIPO sector: Chemistry

Abstract

A method is disclosed for extracting collagen from calcified tissue without a prior decalcification step. The method may be used with calcified tissues such as fish skin with scales, alligator skeletons, and crustacean exoskeletons. It does not require the use of EDTA. When fish skin is used that contains substantial quantities of scales, it is not necessary first to remove scales from the skin before conducting the extraction of collagen.