Microcapsule slow release essence and preparation method thereof

Abstract

The invention discloses microcapsule slow release essence. The microcapsule slow release essence comprises a nanometer core material, essence and a coating material. The porous structure of the nanometer core material is filled with the essence. The nanometer core material filled with the essence is coated with the coating material so that the microcapsule slow release essence is formed. The microcapsule slow release essence comprises, by weight, 5-15 parts of the nanometer core material, 5-15 parts of the essence and 70-90 parts of the coating material. The essence comprises one or more of sweet-scented osmanthus essence, jasmine essence and rose essence. The nanometer core material comprises porous resin or nanometer silica. The coating material comprises drug-grade PEG or monoglyceride. The preparation method of the microcapsule slow release essence comprises preparing a mixture of the nanometer core material and essence, adding the coating material into the mixture, preparing an essence stock solution, carrying out curing treatment and carrying out grinding to obtain powder. The preparation method has simple processes, utilizes eco-friendly raw materials and realizes long fragrance holding time and a wide application range.

Description

technical field [0001] The invention relates to an essence and a preparation method thereof, in particular to a microcapsule slow-release essence and a preparation method thereof. Background technique [0002] Carrier technology can improve the compatibility, stability and sustained release of flavors. Researchers at home and abroad have turned their attention to carrier technology and developed carrier transport systems such as microcapsules, liposomes, and gels. Microcapsule technology is a technology that coats solid or liquid with film-forming materials to form tiny particles. Microcapsules can store substances in a fine state and release them when needed. When the liquid substance is microencapsulated, a fine powder product can be obtained. Microencapsulation can make liquid substances easy to use and store; under controllable conditions, the core material contained in the microcapsules can be released immediately or gradually over a period of time. The gradual releas...

AI Technical Summary

Problems solved by technology

[0004] In the existing essence microencapsulation process, it is generally necessary to add some substances such as cross-linking agents, catalysts or organic solvents to form a capsule wall on the surface of the essence through chemical reactions, thereby completing the microencapsulation of the essence; however, the reaction of the above method Conditions have a great influence on the formation of the capsule wall, and the performance stability of the prepared microencapsulated essence is relatively poor; in addition, due to the use of organic solvents in the preparation process, the application range of essence microcapsules is limited to a certain extent, especially for food applications

In addition, the existing fragrance microcapsule products such as microcapsule emulsion or colloid, etc., generally have a sustained release time of about one month, which often cannot meet the needs of practical applications.

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