Edible packaging materials, you understand?

Edible packaging materials, presumably most people don't know, let's to reveal one by one. First to find out what is edible packaging composite membrane materials, edible packaging materials are edible material itself, by the combination, heating, pressure and make molding, coating, and extrusion method. Edible packaging materials used in the packaging items is different, also is not the same, but is a main raw material or component to define. From what has been discussed above, can according to the using characteristics of the main raw material, edible packaging materials can be divided into four categories: 1. Starchy & ndash; — Starchy edible packaging materials are made from starch as the main raw material. , the starch forming agent according to certain proportion and adhesives, and fully stirring, then by hot pressing methods such as processing packaging film or has certain rigid packaging container. Used with corn starch, sweet potato, potato, konjac and wheat, etc. Join the adhesive for more natural non-toxic plant or animal glue glue, such as gelatin, AGAR and natural resin adhesive. 2. Protein & ndash; — Protein edible packaging materials are protein as raw material, using colloidal properties of protein, altering the hydrophilicity of colloid to join other additives of packaging materials, more than exist in the form of packaging film, according to the basic material of different can be divided into the collagen membrane and thin films and grain protein, milk protein film 3 kinds. 3. Polysaccharide & ndash; — Polysaccharide edible packaging materials mainly use gel, polysaccharide food and made based on polysaccharide food raw material. With methyl cellulose, hydroxypropyl methyl cellulose and pectin, such as basic material, cellulose film can be obtained from; , based on aquatic shellfish extract and chitosan can be made into chitosan membrane; And utilization of sweet potato, potato, cassava, corn and other agricultural products produced after fermentation of macromolecular polysaccharide get mildew, which can be made into get mildewed polysaccharide film; Using corn starch paste and water can be made into hydrolyzed starch film. 4. Fat & ndash; — Fat edible packaging materials is the use of the density of adipose tissue in food fiber made of packaging material. According to different sources of fat can type film made from vegetable oil, animal fat thin film and wax film three fat packaging materials. Type vegetable oil film respectively the fat from guangxi resin acid, linoleic acid, palm oil, sunflower oil, coconut oil, safflower oil and rapeseed oil, vegetable oil extract; Type tallow fat in thin film can be extracted from anhydrous milk fat and fat etc; Type wax film from beeswax, the fat little polluted resin to extract and carnauba wax material.