The invention discloses a preparation method of pea residue / wheat B
starch slurry edible packaging paper, and relates to the technical field of edible packaging materials.According to the method, pea residues and wheat B
starch slurry are used as main raw materials,
konjac glucomannan,
carrageenan, glycerin,
sorbitol and other auxiliary materials are used as auxiliary materials, and the edible packaging paper is prepared. The preparation method comprises the steps of pea residue pretreatment,
raw material blending, degassing, pre-
drying, low-temperature gelation,
soybean protein heat-sealing liquid soaking,
drying and forming and the like. Wherein the pretreatment of the pea residues comprises the steps of hydrolyzing, cleaning and crushing to prepare homogenate; the raw materials need to be degassed for 2-3 h after being blended, the degassed
mixed solution is spread into a
thin layer to be pre-dried, and then the
thin layer is gelatinized for 8-10 h at the low temperature of 2-8 DEG C; and soaking the gelatinized
thin layer in special
soybean protein heat sealing liquid for 1-2 minutes, and finally
drying with hot air until the
water content is about 14% to obtain a finished product. The method is reasonable in process, has excellent
mechanical property, barrier property and heat sealing property, and can be widely applied to packaging in the fields of food,
medicine and the like.