The invention discloses a method for preparing an edible
film material through
bran, and relates to the technical field of novel
film material production. The method comprises the steps that the
bran is subject to fine
grinding and screening, and the
fineness of particles is 120 meshes; the
mass proportion of the
bran to water is 1:5, the bran is put into a reaction kettle to be heated to 65 DEG C,
protease and saccharifying
enzyme are added, and enzymolysis is carried out for 6 hours; the temperature is reduced to 12 DEG C, the bran is poured into a centrifugal
machine to be separated, and the bran and other
large particle slag are removed;
gelatin, nanosilicon dioxide,
lecithin and
saponin are added, the temperature rises to 90 DEG C, stirring is carried out for 30 min, and the pH value is adjusted to 7.5;
spray drying is carried out, and the edible
film material is obtained. The new way for utilizing the bran is provided, the bran can be subject to deep
machining, the added value of products is high, the production technology is suitable for batched production of an enterprise, the investment is small, the product quality is high, the produced edible film material can be used for producing edible thin films, a new material is provided for the food and the
food packaging field,
moisture can be isolated, food can be prevented from absorbing
moisture, infectious microbe breeding is avoided, and the food can be well protected.