Method for extracting taurine from marine food product leftovers

Abstract

The invention discloses a method for extracting taurine from marine food product leftovers. The method comprises the following steps: S1, crushing the marine food product leftovers into granular powder through a crusher; S2, adding water to the powder prepared in S1 to dilute; heating for 30min to obtain a mixed solution; digesting the mixed solution for 20min, and removing solid impurities; and S3, adding hydrochloric acid to the mixed solution prepared in S2 to remove protein. According to the method, the marine food product leftovers are fully utilized to extract taurine; and sea cucumber intestine extracting liquid extracted with hot water cannot be concentrated or subjected to salt removing through ultrafiltration or strong acid cation exchange resin, the salt is completely removed byelectrodialysis, and then most of the impurities can be removed by ultrafiltration through an ultrafiltration membrane. Therefore, the technical steps are simplified; the purity of the taurine in crystallizing is increased, and the recrystallizing times are decreased; the purity of the taurine extracted and separated by the technical method is beyond 90%; the processes are simple; and the equipment input is low.

Description

technical field [0001] The invention relates to the technical field of extracting taurine from seafood, in particular to a method for extracting taurine from leftovers of seafood. Background technique [0002] Seafood leftovers are extremely rich in marine resources in the coastline of our country! For example: every ton of wet dried scallops produced in Jiaodong area leaves about 2.5 tons of scallop skirt scraps. It is estimated that the annual output of scallop skirts and other scraps and low-value seafood produced in Jiaodong area is more than one million tons, and many of them are treated as waste, which not only wastes resources but also pollutes the environment. [0003] Taurine is widely distributed in animal tissue cells, and marine animals are particularly rich in taurine. Mammalian tissue cells also contain high levels of taurine, especially in nerves, muscles and glands. Rich in free amino acids, almost all taurine exists in the free form in the body, and most o...

AI Technical Summary

Problems solved by technology

In vivo synthesis is converted from sulfur-containing amino acids (cysteine, methionine, etc.) through a series of enzymatic reactions, but its own synthesis ability is low