5results about How to "Add application method" patented technology

The invention provides an oat dextran-phenolic acid grafted copolymer, a preparation method thereof and application of the oat dextran-phenolic acid grafted copolymer as an antioxidant antibacterial liquid, and belongs to the technical field of food preservation, phenolic acid and oat dextran are mainly used as reaction substrates, the oat dextran-phenolic acid grafted copolymer is prepared through an N, N '-carbonyldiimidazole method under the assistance of vacuum ultrasound, and the oat dextran-phenolic acid grafted copolymer is used as an antioxidant antibacterial liquid. The synthesis process is simple, the synthesis time can be effectively shortened through vacuum ultrasound, the synthesis efficiency is improved, meanwhile, the oat glucan-phenolic acid grafted copolymer prepared through the N, N '-carbonyldiimidazole method has good antioxidant and antibacterial activity, the shelf life of chilled fresh meat can be effectively prolonged when the oat glucan-phenolic acid grafted copolymer is used for preserving the chilled fresh meat, and the service life of the chilled fresh meat is prolonged. The nutritional ingredients are reserved.

The invention belongs to the technical field of ozone water preparation, and particularly relates to a preparation method and device of an organic acid ozone miscible coexisting water solution. The organic acid ozone miscible coexisting aqueous solution contains organic acid, so that the half-life period of ozone water can be effectively prolonged. The organic acid is one or more of acetic acid, propionic acid, butyric acid, oxalic acid, malonic acid, succinic acid and citric acid. Preferably, the content of the organic acid is between 0.01 wt% and 10 wt%. The half-life period of the ozone water is obviously prolonged, the half-life period can be prolonged to several hours to several days from the existing 5-20 minutes, and the application mode and application scene of the ozone water are greatly widened.

The invention discloses a preparation method of a multi-layer microcapsule for delivering fucoxanthin, and belongs to the technical field of food and drug processing. The preparation method comprises the following steps: S1, mixing krill oil with a co-emulsifier to obtain a microemulsion, adding fucoxanthin, stirring to obtain a krill oil self-microemulsion system, adding water, and mixing to obtain a fucoxanthin-loaded microemulsion; s2, mixing the obtained fucoxanthin-loaded microemulsion with chitosan, and adding a polysaccharide solution into the obtained mixed solution for mixing, so as to obtain a feed solution; and S3, drying the feed liquid to obtain the fucoxanthin-loaded microcapsule. The microcapsule wall material is prepared through electrostatic layer-by-layer deposition on the fucoxanthin-loaded microemulsion, and then spray drying is performed to obtain the fucoxanthin-loaded multilayer microcapsule, so that the bioavailability of fucoxanthin can be improved, and fixed-point release of fucoxanthin is realized.

The invention relates to the technical field of extraction of microbial functional components, in particular to selenoprotein with high antioxidant activity as well as a preparation method and application of the selenoprotein. The selenoprotein provided by the invention is a selenoprotein substance with more prominent yeast source and high biological activity compared with selenium-enriched yeast, the antioxidant activity of the selenoprotein is 10.08-14.52 times of that of total selenoprotein and 9.14-13.17 times of that of the selenium yeast under the isoconcentration condition, the selenium content is 3498.09-4730.47 mg / kg, and the selenoprotein has the advantages of high activity and efficient absorption compared with the selenium-enriched yeast; wide application prospects are realized in the aspects of medicine, functional foods, cosmetics and the like.

This invention discloses a hydrogel containing ATP crosslinking nodes, its preparation method, and its applications, belonging to the technical field of polymer hydrogel materials and functional soft materials. This invention utilizes the multi-point interaction between guanidine-containing polymer units and ATP phosphate groups, and the reversible borate ester interaction between phenylboronic acid-containing polymer units and ATP ribose diol, to synergistically construct a hydrogel network. Through this structural design, ATP is retained as a network crosslinking node within the hydrogel, and the formed network possesses a structural basis for enzymatic decrosslinking or degradation. Furthermore, the hydrogel provided by this invention exhibits excellent mechanical properties, dynamic recovery properties, antibacterial properties, and anti-biofilm properties.