The invention relates to a drug delivery device adapted for carrying and delivering both hydrophilic and lipophilic drug molecules. The drug delivery device includes a porous body for adsorption of drug molecules, the body including a plurality of microspheres, and a hydrogel forming cross-links connecting the plurality of microspheres.

This invention relates to the field of producing bioplastics. Specifically, it relates to a method of producing all key ingredients of bioplastic making from pumpkins and making of bioplastic with these ingredients. More specifically, glycerin and other chemicals are extracted from pumpkin seed oil and mixed with starches that in the pumpkin flesh and then reinforced with pumpkin fibers to make bioplastic. The bioplastic produced with the method as disclosed in this invention possess superior properties in tensile strength and biodegradability compared to bioplastic made with petroleum derived glycerin.

The present invention relates to a masterbatch composition comprising high concentration of biological entities having a polymer-degrading activity and uses thereof for manufacturing biodegradable plastic articles.

This invention relates to the field of producing bioplastics. Specifically, it relates to a method of producing all key ingredients of bioplastic making from pumpkins and making of bioplastic with these ingredients. More specifically, glycerin and other chemicals are extracted from pumpkin seed oil and mixed with starches that in the pumpkin flesh and then reinforced with pumpkin fibers to make bioplastic. The bioplastic produced with the method as disclosed in this invention possess superior properties in tensile strength and biodegradability compared to bioplastic made with petroleum derived glycerin.

The present invention relates to a masterbatch composition comprising high concentration of biological entities having a polymer-degrading activity and uses thereof for manufacturing biodegradable plastic articles.

The present invention relates to the use of a polysaccharide adhesive containing cold water-soluble or cold water-swelling, covalently cross-linked starch as a binder together with a foam generator for producing an adhesive foam.

The present invention provides a hydrophobic thermoplastic starch and method for manufacturing the same, to be used as granules for making biodegradable composites. The hydrophobic thermoplastic Starch of the invention is in a granule type, has the melt flow index in the range of 0.26 g/10 min at 160 C. and has 6080 wt % of starch and the water content less than 9%.

The invention discloses a method for adsorbing ethylene gas using amorphous granular starch. The method firstly prepares amorphous granular starch, wherein starch slurry is prepared from starch with a ethanol aqueous solution and NaOH solution is added dropwise so as to react at 30 to 35 C. for 20 to 50 minutes; Then the slurry is centrifuged, neutralized with an ethanol hydrochloride solution, washed and dried to obtain the amorphous granular starch. The amorphous granular starch is placed in a high-pressure reactor and ethylene gas is introduced after the reactor is vacuumized to react at 0.8 to 1.5 Mpa and 20 to 30 C. for 15 to 25 h so that starch powder product adsorbing with ethylene is obtained. The test result shows that the content of ethylene in the obtained product can reach more than 30%. The method is simple, highly efficient and cheap for the adsorption process of ethylene, and the product is expected to be widely applied in the field of fruit and vegetable modified atmosphere preservation.

The present disclosure relates to a modified starch composition. Said modified starch composition comprises starch and a compatibilizing agent selected from the group consisting of glycerol, glycerin, sorbitol and a combination thereof in a w/w ratio of 2:1 to 4:1, wherein the modified starch composition has a solubility index of less than 15% in water at a temperature of about 80 C., and wherein the thermogravimetric analysis of the modified starch composition shows a characteristic peak at a temperature in the range of 120 C. to 180 C.

A stretch film for use in the cosmetic or agri-food packaging sectors comprises konjac and carrageenan in a mass ratio of between 20/80 and 60/40. A stretch film according to the present disclosure has advantageous properties for use as a biodegradable stretch cling film and cosmetic mask.