| 摘要 |
PURPOSE: Provided is an edible and biodegradable film containing fish protein, which is excellent in mechanical properties, such as tensile strength and elongation, and vapor-permeation screening property and can be used for packing various foods. CONSTITUTION: The edible and biodegradable film contains the fish protein, wherein the fish is Theragra chalcogramma or Scomber japonicus. And the film is produced by a process comprising the steps of: extracting the protein from the fish and recovering; adding distilled water and a plasticizer to the obtained protein concentrate to produce a solution for producing the film, wherein the plasticizer is selected from the group consisting of glycerol, sorbitol, propylene glycol, polyethylene glycol, and a mixture thereof; adjusting pH of the solution to be 7.0-11.0 by using an alkali water solution and heating at 70-90deg.C to gelate the solution; antifoaming the gelated solution and molding.
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