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Method for preparing fat-soluble nutrient microcapsules

A technology of fat-soluble nutrients and microcapsules, which is applied in the direction of microcapsule preparation, microsphere preparation, food forming, etc., can solve the problems of low processing resistance of microcapsules, achieve improved processing stability, reduce steric hindrance, The effect of increasing rigidity

Pending Publication Date: 2022-04-08
NINGBO UNIVERSITY OF TECHNOLOGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The water phase in the W / O emulsion prepared in the first stage of this process only shows the evaporation of solvent water in the subsequent drying and molding, and there is no protective inclusion effect on the core material in the oil phase during this process, and the obtained The processing resistance of microcapsules is not high

Method used

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  • Method for preparing fat-soluble nutrient microcapsules
  • Method for preparing fat-soluble nutrient microcapsules
  • Method for preparing fat-soluble nutrient microcapsules

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) Preparation of the oil phase: 4 g of Span 80 and 4 g of Tween 80 were used as emulsifiers, dissolved in 100 g of vitamin E, stirred evenly at 45°C, and used as the oil phase;

[0030] (2) Water phase preparation: add 10 mL of deionized water to 1 g of waxy corn starch, treat in an oil bath at 120 ° C for 30 min, add 10 mL of an aqueous solution in which 0.01 g of sodium trimetaphosphate is dissolved while stirring, and add while stirring, as the water phase ;

[0031] (3) W / O emulsion preparation: add the water phase to the oil phase dropwise to form a water-in-oil emulsion (W / O);

[0032] (4) Preparation of W / O / W emulsion: Weigh 200g of waxy corn starch octenyl succinate and 200g of water, stir evenly at 40-45°C until completely dissolved, and add 0.02g of sodium trimetaphosphate to obtain water Sol solution; the water-in-oil emulsion obtained in step (3) is slowly added to the hydrosol solution to form a W / O / W emulsion;

[0033] (5) Pre-reaction: Stir the W / O / W ...

Embodiment 2-5

[0038] After adjusting the types of fat-soluble nutrients and their mass ratios to Span and Tween in Step 1, refer to Example 1 for other conditions and preparation methods.

[0039]

Embodiment 6-10

[0041] The starch type in step 2 and its pretreatment method and the type of crosslinking agent, starch: crosslinking agent: water mass ratio are adjusted according to the following table, vitamin A is used for fat-soluble nutrients, and other conditions and preparation methods refer to Example 1 .

[0042]

[0043] The octenyl succinic acid waxy corn starch ester in the above example 6 is 1 part of waxy corn starch and 0.03 part of octenyl succinic anhydride at pH = 8, 40 degrees for 3 hours, after the reaction, the pH is adjusted to Neutral, filtered, washed with deionized water for 5 times, and finally dried to obtain starch octenyl succinate.

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Abstract

The invention relates to a method for preparing fat-soluble nutrient microcapsules. The method comprises the following steps: (1) preparing an oil phase; (2) preparing a water phase, namely pretreating 1-10 parts of starch, dissolving or dispersing the starch in water, then adding 0.01-2 parts of a cross-linking agent into the water, and completely dissolving or dispersing to obtain the water phase; (3) preparing W / O emulsion; (4) preparing W / O / W emulsion: dropwise adding the W / O emulsion prepared in the step (3) into the hydrosol solution to form the W / O / W emulsion; (5) pre-reaction; and (6) preparing the microcapsule. According to the microcapsules prepared by the method, fat-soluble nutrient particles are crosslinked, wound and coated by starch chains, and fat-soluble nutrients are loaded in multiple ways, so that the processing stability is greatly improved.

Description

technical field [0001] The invention relates to a method for preparing microcapsules, in particular to a method for preparing fat-soluble nutrient microcapsules. Background technique [0002] Microcapsule refers to the encapsulation of active substances such as fine solid particles or liquid droplets in a film-forming polymer material to form a capsule-like container with a diameter of 1-1000um. The capsule includes a core material and a wall material. The functional active substances encapsulated in the wall material are generally made of polymer materials such as starch derivatives, gelatin, gum arabic, and sodium lignosulfonate. [0003] For example, the application number is CN201310578561.5 (publication number is CN103549157B) Chinese patent discloses a "preparation method of water-repellent vitamin microcapsules", specifically, the wall material and the core material are emulsified and homogenized to form a homogeneous O / W emulsion, and then add protein active enzyme...

Claims

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Application Information

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IPC IPC(8): A23L33/155A23L33/15A23L33/115A23P10/30B01J13/14
Inventor 仇丹王亚娟孔祥礼邵平李亚
Owner NINGBO UNIVERSITY OF TECHNOLOGY
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