Extraction process of shark chondroitin

• Main Author: YUAN HONGLIANG
• Format: Patent
• Language: Chinese; English
• Published: 16.04.2014
• Subjects: CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; COMPOSITIONS BASED THEREON; DERIVATIVES THEREOF; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; POLYSACCHARIDES; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; THEIR PREPARATION OR CHEMICAL WORKING-UP

The invention relates to an extraction method of chondroitin, particularly to an extraction process of shark chondroitin, and belongs to the technical field of natural product extraction. According to the extraction process, an enzymic method, membrane separation and carbon dioxide supercritical extraction are integrated. The extraction process comprises the steps as follows: taking fresh shark cartilage, washing the shark cartilage clean, crushing the shark cartilage into fine powder, and extracting the fine powder in a NaOH solution to obtain an extract liquid; adjusting the pH of the extract liquid, and then adding trypsin for enzymolysis to obtain enzymatic hydrolysate; performing enzyme deactivation on the enzymatic hydrolysate, filtering the enzymatic hydrolysate with an ultra-filtration membrane to obtain an ultra-filtration permeate, and filtering the permeate with a nanofiltration membrane to obtain a concentrated solution; and spray-drying the concentrated solution into powder, feeding the powder in