Edible and degradable film using bean-curd dreg or whey and method of the preparation thereof

摘要

The present invention relates to a edible and degradable film using tofu busy whey or whey and a method for preparing the same, protein concentrates and plasticizers obtained from tofu busy whey or whey at a pH of 9 to 11 and a temperature of 70 to 100 ℃ After dissolving in water and treating with addition of organic acid as a crosslinking agent, and then the mixture was poured on a plate and cooled to dryness, it is possible to prepare a edible decomposable film having improved price and competitive mechanical properties and material permeability. The film according to the present invention can reduce the environmental pollution problem and at the same time physically improve the shelf life of the food, and ultimately edible, can be applied to the packaging of various food.