New film-making technology based on soybeans developed successfully in the United States
July 15 05:01:23, 2024
recent. The technology of making food packaging films using soybean as raw material has been successfully developed in the United States. Soybean plastic film is soaked in water to make it soft. Remove crushed. Protein was isolated. Then a fine protein powder is obtained. Then add other substances in the powder and mix. Can be used to hold and cover foods. Soybean protein food packaging film is based on the separation of soy protein. Treat with 100 times 0 1N sodium hydroxide for 2 hours. After high-speed centrifugation. Remove the clear solution. Adjust to the isoelectric point of the protein with hydrochloric acid. Precipitates the protein. The precipitate is freeze-dried. The food packaging film made is even and transparent. Low oxygen permeability. Preservation ability is good. Applicable to medicine, candy, fruit, meat products and other products packaging film.