Jellyfish collagen and method for preparing the same

Abstract

The disclosed collagen extracted from jellyfish mesoglea belongs to white fiber solid or light-yellow solid powder with bulk density as 0.110-0.645g / ml, shows clear liquid after dissolving in acidic solution completely; has single-bond molecular weight as 100-300 thousands dalton, sugar content as 2.5-5%, amino acid content as 80-95%mg / 100mg with 7.9-8.3% aspartic acid, 10.0-12.9% glutamic acid, 3.5-4.0% threonine, 3.5-3.9% valine, 2.2 -2.5% isoleucine, 3.4-3.8% lycine, and 2.0-2.7% hydroxylysine. Besides, the opposite preparation method comprises: (1) selecting salinized or fresh jellyfish; (2) pre-treating; (3) separating the mesoglea; (4) dissociating mesoglea; (5) ultrafiltrating, separating, and condensing. This invention has trapping rate as 95-98% and high product purity.

Description

technical field [0001] The invention relates to the improvement of marine biochemical raw materials, in particular to a jellyfish collagen and a preparation method thereof. It belongs to the technical field of biomedicine and chemical industry. Background technique [0002] Jellyfish, also known as jellyfish, is a coelenterate. Jellyfish are carnivorous, feeding on plankton, small crustaceans, polychaetes and even small fish. The body is hemispherical, and the diameter of the umbrella is generally 30 to 45 centimeters, and the largest one can reach 100 centimeters. Between the epidermis and stomach layer of jellyfish is the mesoglea, which is very developed and occupies almost the entire thickness of its body, which contains fibers and a small amount of cells derived from the ectoderm. The middle glue layer is hard and thick, and there are many small fibers in the middle glue layer that can be seen under the electron microscope. The main component in the middle glue laye...

AI Technical Summary

Problems solved by technology

Many domestic literatures report the technology and process of extracting collagen from beef tendon, pig skin, pig cartilage, fish skin and fish scale, all of which use enzymatic hydrolysis and salting out extraction process. The problem with salting out extraction is that protease recovery is difficult , Difficulties in salt recovery and recycling of acidic solutions

Dissolution and dissociation of this endodermal miscellaneous protein affects the extraction of jellyfish collagen

In addition, most of them use the combination of collagenase dissociation and salting-out process for extraction. The disadvantage of the salting-out process is that a large amount of salt is used, which is harmful to the formation of saline wastewater.

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