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...

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