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Preparation method of potpourri type nano microcapsule essence

A nano-microcapsule and flower-flavored technology, which is applied in the field of preparation of floral-flavored essences, can solve the problems that the preparation methods of floral-flavored essences have not yet been reported in relevant reports, and achieve the effect of a simple method

Inactive Publication Date: 2007-09-19
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation method of the flower-flavored essence encapsulated by nano-microcapsules has not yet been reported in relevant reports

Method used

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  • Preparation method of potpourri type nano microcapsule essence

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Prepare 100 grams of nano essence

[0018] (1) Weigh 0.05g of chitosan oligosaccharide (CSO) on an electronic balance, add 49.95g of deionized water, and stir gently for 2 minutes to completely dissolve it.

[0019] (2) Weigh 0.0375g of sodium tripolyphosphate (TPP) on an electronic balance, add 49.5625g of deionized water, and stir gently until it dissolves. Then add 0.2g essence and 0.2g Tween 20. Put into a magnetic stirrer and emulsify for 30 minutes at a rotating speed of 500r / min.

[0020] (3) Pour all the prepared sodium tripolyphosphate (TPP) solution into an acid burette, and place the chitosan oligosaccharide (CSO) solution on a magnetic stirring table. Adjust the dropping speed and stirring speed of the burette so that the sodium tripolyphosphate (TPP) solution reacts with the chitosan oligosaccharide (CSO) solution at a speed of 500 r / min at a dropping speed of 2 d / s. until it drips completely.

Embodiment 2

[0022] Prepare 200 grams of nano essence

[0023] (1) Weigh 0.1 g of chitosan oligosaccharide (CSO) on an electronic balance, add 99.9 g of deionized water, and stir gently for 2 minutes to completely dissolve it.

[0024] (2) Weigh 0.075g of sodium tripolyphosphate (TPP) on an electronic balance, add 99.125g of deionized water, and stir gently until it dissolves. Then add 0.4g essence and 0.4g Tween 20. Put into a magnetic stirrer and emulsify for 30 minutes at a rotating speed of 500r / min.

[0025] (3) Pour all the prepared sodium tripolyphosphate (TPP) solution into an acid burette, and place the chitosan oligosaccharide (CSO) solution on a magnetic stirring table. Adjust the dropping speed and stirring speed of the burette so that the sodium tripolyphosphate (TPP) solution reacts with the chitosan oligosaccharide (CSO) solution at a speed of 500 r / min at a dropping speed of 2 d / s. until it drips completely.

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Abstract

The invention discloses a preparing method for floral nanocapsules essence, including steps: a. weighting chitosan oligosaccharide powder to prepare chitosan oligosaccharide solution A with concentration of 1.0 mg / ml; b. weighting sodium tripolyphosphate powder to prepare sodium tripolyphosphate solution B with concentration of 0.75 mg / ml; c. adding 2% by weight of natural floral essence in the solution B and 2% by weight of emulsifier, the agitating blending solution 30 minutes in a magnetic stirring apparatus with speed of 500 r / min; d. coagulating the soultion B at drop rate of 2d / s with solution A at rate of 500 r / min under magnetic stirring to produce the floral nanocapsules essence. The theory of complex coacervation phase separation in the invention is a simple and reliable method, final product is a floral essence infloded by nanocapsules filling blank of market.

Description

technical field [0001] The invention relates to a floral fragrance essence, more specifically to a preparation method of a floral fragrance essence wrapped in nanometer microcapsules. Background technique [0002] The preparation of the nano-microcapsule solution by adopting the complex coacervation phase separation method is to separate the liquid phase as the wall material from the continuous phase, and coat the surface of the core material to form a capsule wall structure. The complex coacervation phase separation method is divided into aqueous phase separation and non-aqueous phase separation according to the dispersion medium. The so-called aqueous phase separation method uses two oppositely charged colloids to neutralize each other to cause phase separation. In this method, since microencapsulation is carried out in aqueous solution, the core material must be water-insoluble solid powder or liquid. In aqueous solution, when the pH is greater than its isoelectric poin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B9/00B01J13/10
Inventor 李丹林
Owner SHANGHAI INST OF TECH
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