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Method for preparing plant essential oil powder microcapsule

A plant essential oil and microcapsule technology, which is applied in the field of flavor and fragrance processing, can solve the problems that the heat resistance stability needs to be improved and the effect is not ideal, and achieve the effects of enhanced high temperature resistance, improved heat resistance stability and easy storage.

Inactive Publication Date: 2019-04-09
GUANGZHOU CITY POLYTECHNIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the existing preparation methods use single-wall materials or composite wall materials to prepare essential oil microcapsules in a single embedding manner. The effect is still unsatisfactory under the use environment, and its heat-resistant stability still needs to be improved. Research on heat-resistant and stable essential oil products is one of the hot research areas in the current flavor and fragrance industry.

Method used

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  • Method for preparing plant essential oil powder microcapsule
  • Method for preparing plant essential oil powder microcapsule
  • Method for preparing plant essential oil powder microcapsule

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Prepare a kind of lemon powder microcapsule essential oil, its specific steps are as follows:

[0018] (1) Preparation of lemon essential oil: take 100 g of lemon peel and mash it, place it in a 1000 mL flask, add 500 mL of distilled water, extract with steam distillation for 5 hours, take the upper layer of oil, filter to remove impurities, and then get lemon essential oil;

[0019] (2) Initial embedding: prepare 4% (w / v) β-cyclodextrin solution, use β-cyclodextrin as the wall material, and mix the lemon essential oil and β-cyclodextrin solution obtained in step (1) by With a mass ratio of 1:6, stir magnetically in a water bath at 50°C for 1 hour to obtain the initial embedding lemon essential oil;

[0020] (3) Spray drying: keep the initial essential oil embedding solution in a uniform state under magnetic stirring, pump it into the dryer, spray and dry it under the conditions of an inlet air temperature of 150°C and a feed rate of 40ml / min, and obtain the first lemon...

Embodiment 2

[0023] The difference between this embodiment and Example 1 is only that the water bath temperature of step (2) is 40 DEG C, and the stirring time is 1.5h; the inlet air temperature of step (3) is 150 DEG C, and the feed rate is 40ml / min; step (4) ) and the powdered essential oil embedded in prolamin for the second time was placed at 70° C. for 30 minutes to dry.

Embodiment 3

[0025] The only difference between this example and Example 1 is that the concentration of the zein solution in step (4) is 8% (w / v).

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Abstract

The invention provides a method for preparing a plant essential oil powder microcapsule. The method comprises the steps of preparing plant essential oil, embedding a wall material for the first time,drying by spray and embedding the wall material for the second time. According to the preparation method, plant essential oil is embedded in micropores through beta-cyclodextrin embedding, and membrane attached embedding is carried out with zein or wheat gliadin, a completely closed structure can be formed, and the essential oil has an embedding rate of 80-88 percent; and the stability of plant essential oil at normal temperature and high temperature can be improved by twice embedding, the volatility can be reduced, and the high temperature resistance can be reinforced.

Description

technical field [0001] The invention relates to the field of essence and fragrance processing, in particular to a preparation method of plant essential oil powder microcapsules. Background technique [0002] Lemon essential oil and orange essential oil have attractive aromas and are very popular. They are currently the most widely used essential oils and are widely used in food, tobacco, daily chemical and other industries. Essential oil is an oily substance with characteristic aroma obtained from the flowers, leaves, roots, bark, stems, branches, fruits, seeds and other parts of aromatic plants by distillation, pressing, extraction, adsorption and other methods. Most essential oils have a unique aroma and physiological functions such as antibacterial and anti-oxidation, and are widely used. However, essential oils are highly volatile, have poor heat resistance, and are prone to volatilization and oxidation when exposed to air, which limits the application of essential oils...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J13/04
CPCB01J13/04B01J13/043
Inventor 韩明郑玉玺董蕾刘慧娟陈烽华
Owner GUANGZHOU CITY POLYTECHNIC
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