A drying device for electrospray ionization coupled with ultrasonic atomization and method for preparing microcapsules

Abstract

The invention discloses a drying machine adopting electrospray ionization coupling ultrasonic atomization and a method thereof used for preparing microcapsules. Wall material liquid is conveyed into an ultrasonic atomization container, the wall material liquid is atomized by an ultrasonic atomizer in the ultrasonic atomization container to form wall material droplets, and the wall material droplets enter a gas mixer; meanwhile, electrospray ionization is performed on a core material to form core material droplets, the core material droplets form charged particles through hot nitrogen, and thecharged particles enter the gas mixer through holes of a negative high-voltage electrode plate; a wall material and the core material are embedded in a spray drying bin, air passes through a filter and then is heated by a heater, the heated air is conveyed into the spray drying bin, the embedded particles are dried by the hot air, all grades of particles are separated by a gas-solid separator, themicrocapsules and macromolecule particles are collected by a collector, nanocapsules and micromolecule particles are collected by a dehumidifier and a particle collector, so that the energy-conversion, green and high-quality microcapsules with efficient instable nutrients are prepared under the synergism of electrospray ionization, ultrasonic atomization and spray drying.

Description

technical field [0001] The invention belongs to the technical field of microcapsule preparation, and in particular relates to a drying device for electrospray ionization coupled with ultrasonic atomization and a method for preparing microcapsules. Background technique [0002] Nutrients and related products currently on the market are mainly ingested orally, and have defects such as short storage time, low bioavailability, poor stability in the gastrointestinal tract, and easy degradation. The preparation of microcapsules by spray drying method is one of the main means to solve this problem. Compared with other embedding methods, it has the advantages of low operating cost, high production capacity, and simple process, but it also has low encapsulation efficiency and capsule particle size. Large diameter, poor product uniformity and other defects. Therefore, it is imperative to invent and create new microcapsule embedding technology. In recent years, electrospray ionizatio...

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Problems solved by technology

However, this method does not break away from the limitations of the spray-drying method to prepare microcapsules, and still retains most of the defects of the spray-drying method.

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