Device for preparing double-shell microcapsules

A double-layer shell and microcapsule technology, which is applied in the field of food machinery, can solve the problems of low repeatability of experiments, industrial production, uneven size of double-layer microcapsules, and complicated preparation process, and achieve shortened production time, easy control, and preparation The effect of simple process

Pending Publication Date: 2018-06-15
NANCHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current preparation of double-layer microcapsules also has problems such as uneven size of the prepared double-layer microcapsules, complicated preparation process, complicated reaction conditions, difficult control, and the inability to form industrialized production due to the low repeatability of experiments.

Method used

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  • Device for preparing double-shell microcapsules

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] A device for preparing double-layer shell microcapsules described in this embodiment includes a core material liquid inlet 1, a wall material liquid inlet 2, a vibration system 3, a concentric nozzle 4, an electrode 5, a collector 6, an agitator 7, Peristaltic pump Ⅰ8, second coating chamber 9, rotatable screen 10, water outlet 11, air inlet 12, coating liquid inlet 13, peristaltic pump Ⅱ14, atomizing nozzle 15, air compressor 16, temperature control system 17.

[0014] The core material liquid inlet 1 is located on the left side above the first layer coating machine, the wall material liquid inlet 2 is located on the right side above the first layer coating machine, the core material liquid inlet and the wall material liquid inlet are connected to the vibration system at the same time 3. The vibration system 3 is connected to the concentric nozzle 4, the electrode 5 is located below the nozzle 4, the collector 6 is located directly below the first layer coating machine...

Embodiment 2

[0017] Take 0.5% 500ml sodium alginate solution and 0.5% 100ml proanthocyanidin solution from the liquid inlets 1 and 2 respectively, and through the indirect extrusion of the vibration system 3, the concentric nozzle 4 produces uniform single-core single-wall water. The condensation beads are dispersed into the hardening solution containing 1% calcium chloride after passing through the electrode 5. The water condensation beads are hardened by the hardening solution in the collector 6, and then enter the lower part of the second coating chamber 9 through the peristaltic pump I8, and the hardening solution It is discharged through the drain outlet on the left side of the rotatable screen 10, and the particles trapped on the screen are blown up by the hot air at the air inlet 12 to realize fluidization. Delivered to the atomizing nozzle 15 at the top of 9, after atomization, meets the fluidized particles to form a second layer of coating. Thereby producing double-layer proanthoc...

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Abstract

A device for preparing double-shell microcapsules comprises a core material liquid inlet, a wall material liquid inlet, a vibrating system, a concentric nozzle, a collector, a stirrer, a peristaltic pump I, a second layer coating chamber, a rotatable screen, a coating liquid inlet, a peristaltic pump II, an atomizing nozzle, an air compressor, a temperature control system and the like. The deviceis simple; through control over the liquid inlet speeds of the core material liquid inlet and the wall material liquid inlet and the vibrating frequency of the vibrating system, the sizes of microcapsule cores are controlled, so that the microcapsules with uniform sizes are prepared and damage during microcapsule preparation is reduced; through hardening liquid filtration and hot air fluidization,rapid moulding of first-layer microcapsules is achieved; through control over the atomizing pressure and the coating liquid solubility, the shell thickness of second-layer coating is controlled. A preparation technology is simple, the reaction condition is mild, the control is easy, and the repeatability is relatively good; in addition, because of a sealing property of the device, influence of the environment on the microcapsules is greatly reduced, so that the double-shell microcapsules can be effectively prepared and the preparation time is greatly shortened.

Description

technical field [0001] The invention belongs to the field of food machinery and relates to a device for preparing double-shell microcapsules. technical background [0002] Microcapsule technology is a technology that uses film-forming materials to embed solid liquid or gas into inclusions with a functional core-shell structure. Microcapsule technology has been extended to different fields including medicine, agrochemicals, spices, coatings, food science, and preparation of cosmetics. After microencapsulation, some substances can be stored in the form of core materials in a fine state and released when needed, and their color, shape, heat resistance, solubility, volume, quality, etc. will change. Microencapsulation technology mainly has the following advantages: ① Microencapsulation can change the shape of the material, thereby changing the existing state, quality and volume of the material. ②Microencapsulation can control the release of the core material, control the relea...

Claims

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Application Information

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IPC IPC(8): B01J13/04
CPCB01J13/043
Inventor 陈军陈若辰刘成梅梁瑞红
Owner NANCHANG UNIV
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