3 results about "Starch glycerite" patented technology

This invention, entitled "Antibacterial Food Packaging Film Containing Propolis Extract, Preparation Method, and Application," belongs to the field of food packaging films. The technical problem to be solved is the poor mechanical properties, antibacterial properties, and antioxidant properties of the packaging film. The antibacterial food packaging film provided by this invention is made from the following raw materials: tamarind gum, pregelatinized starch, glycerin, and propolis extract. Xyloglucan in the tamarind gum is extracted by rapid high-temperature heating, and the propolis extract is integrated into the film-forming solution through simple blending. After drying, the film is obtained. The antibacterial food packaging film prepared by this invention solves the problem of poor mechanical properties in traditional tamarind gum-based packaging films and endows the packaging film with antibacterial and antioxidant functions, which can inhibit food spoilage and thus extend the shelf life of food.

The invention discloses a non-steroidal anti-inflammatory drug suspension drop and a preparation method thereof. The suspension drop comprises ibuprofen, xanthan gum, pregelatinized starch, glycerin, sucrose, anhydrous citric acid, sodium benzoate, polysorbate 80, strawberry essence and water. The preparation method comprises the following steps: 1) sieving ibuprofen with a 20-mesh sieve for later use; the preparation method comprises the following steps: adding polysorbate 80 into purified water, stirring and dissolving, adding ibuprofen according to the prescription amount, and stirring and dispersing uniformly; 2) adding 100 DEG C purified water and glycerol into the liquid preparation tank, and stirring and mixing; (3) starting a rotor pump and a homogenizing pump to form internal circulation in the liquid preparation tank, opening a ball valve of a charging hopper, adding xanthan gum and pregelatinized starch, closing the valve of the hopper, and homogenizing and stirring until the step (6) is finished; (4) weighing cane sugar, adding the cane sugar into boiling water at 100 DEG C, and stirring for dissolving; 5) continuously stirring in the liquid preparation tank, adding a sucrose solution, washing the container with water, and adding into the liquid preparation tank; 6) adding anhydrous citric acid and sodium benzoate into the liquid preparation tank, and stirring for more than 1 hour after the steps 3-6 are finished; 7) closing the homogenizing pump, adding an ibuprofen dispersion liquid into the liquid preparation tank, washing the dispersion container with water for several times, and stirring; (8) adding essence into the liquid preparation tank, and stirring; 9) adding the total amount of purified water, and stirring; and 10) filling. The drops with good dispersibility and good stability are obtained by screening the prescription and optimizing the preparation process.

This invention belongs to the field of packaging material technology, specifically disclosing a method for preparing a long-lasting antibacterial multilayer composite preservation packaging film, comprising the following steps: mixing starch, glycerin, a crosslinking agent, and polybutylene terephthalate (PET), melting, extruding, and granulating to obtain thermoplastic starch-based granules; melting, extruding, and granulating PET, a crosslinking agent, and a polyguanidine bactericide to obtain antibacterial polyester granules; extruding the thermoplastic starch-based granules using a blown film process to obtain a blown starch-based film; extruding the antibacterial polyester granules using a molding process to obtain a hot-pressed polyester film; sandwiching the blown starch-based film between the hot-pressed polyester film and then molding the film to obtain the preservation packaging film. This invention utilizes the above-mentioned method for preparing a long-lasting antibacterial multilayer composite preservation packaging film, and the prepared composite film material can maintain its antibacterial properties for a long time without experiencing a reduction in the leaching of effective components.