Method for preparing myofibrillar protein-chitosan nano microspheres composite membrane

Abstract

The invention discloses a method for preparing a myofibrillar protein-chitosan nano microsphere composite membrane by using tuna frittered meat. The technical process of the method comprises the following steps: preparing tuna frittered meat myofibrillar proteins; preparing a tuna fishbone gelatin plasticizer; preparing chitosan nano microspheres; sequentially adding the prepared myofibrillar proteins, the fishbone gelatin plasticizer, the chitosan nano microspheres and an antioxidant into double-distilled water in certain proportion so as to form a film-forming solution; and finally, pouring the successfully prepared film-forming solution into a polyvinyl chloride crystal board, and carrying out striking, drying and film uncovering on the film-forming solution so as to obtain a myofibrillar protein-chitosan nano microsphere composite membrane. The method disclosed by the invention is implemented by taking tuna frittered meat as a main raw material, so that a new way is developed for the high-value utilization of tuna processing scraps; and the prepared myofibrillar protein-chitosan nano microsphere composite membrane has the significant characteristics of oxidation resistance, bacteriostasis, and the like.

Description

technical field [0001] The invention belongs to the technical field of food quality and safety, relates to a packaging film, in particular to a method for preparing a myofibrillar protein-chitosan nano microsphere composite film by using minced tuna meat. Background technique [0002] The extensive use of non-degradable plastic packaging materials has caused an increasing negative impact on the environment. Therefore, finding alternatives to non-degradable plastic packaging materials has become a research hotspot in the field of food packaging. Rich protein resources, good biocompatibility, strong plasticizing ability, and more importantly, the barrier ability to oxygen and carbon dioxide in food packaging is better than polysaccharides. Therefore, the research on the preparation of edible films using protein resources has received extensive attention. [0003] Tuna is an important large-scale pelagic commercial food fish, with an annual catch of more than 6 million tons. ...

AI Technical Summary

Problems solved by technology

In the process of tuna processing, a large amount of minced meat and fish bones have not been effectively utilized, wasting valuable fishery resources and limiting the in-depth development of the industry

After searching, there is no report on the preparation of biofilms for packaging using myofibrillar protein prepared from minced tuna and nano-microspheres prepared from chitosan