Method of using cyclodextrin to embed gasified plant essential oil

The technology of plant essential oil and cyclodextrin is applied in the field of cyclodextrin embedding of plant essential oil, which can solve the problems of short processing time, increased probability of collision between host and object, low utilization rate of embedded objects, etc., and achieves high utilization rate, Low energy consumption

Inactive Publication Date: 2016-10-26
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The liquid-liquid embedding method has a relatively active molecular diffusion force when the host and guest are in a liquid state, which increases the probability of host-guest collision, so the utilization rate of the embedding object is high, and the prepared inclusions are of high purity and quality. Good, but it consumes a large amount of solvent because it needs to maintain a liquid state; the gas-solid embedding method does not need to consume a large amount of solvent, but because it is only ap

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0016] Example 1

[0017] The present invention provides a method for cyclodextrin inclusion gasification plant essential oil, which comprises the following steps:

[0018] (1) Add vaporization aid: add vaporization aid (ethanol, concentration of 100%) and essential oil with a mass ratio of 1:1 in the vaporization reactor; use 100°C steam for 90 minutes;

[0019] (2) Inclusion reaction: the initial concentration of cyclodextrin is 25%, the mass ratio of cyclodextrin and essential oil is 1:6; the saturated system temperature at the end of vaporization is controlled to be 90°C, and the temperature is kept at 50°C for 1 hour;

[0020] (3) Cooling down: Stir to a temperature of 25°C, then put it in a refrigerator at 2°C and let it stand until the inclusions precipitate out of the solution;

[0021] (4) Collect the clathrate: vacuum filtration to collect the clathrate, and recover and clean the clathrate 2-3 times with the filtrate of the collection bottle;

[0022] (5) Drying: Place the incl...

Example Embodiment

[0023] Example 2

[0024] The present invention provides a method for cyclodextrin inclusion gasification plant essential oil, which comprises the following steps:

[0025] (1) Add vaporization aid: add vaporization aid (ethanol, concentration of 100%) and essential oil with a mass ratio of 1:3 in the vaporization reactor; use steam at 111°C for 60 minutes;

[0026] (2) Inclusion reaction: the initial concentration of cyclodextrin is 25%, the mass ratio of cyclodextrin and essential oil is 1:7; the saturated system temperature at the end of vaporization is controlled to 90°C, and the temperature is kept at 60°C for 1 hour;

[0027] (3) Cooling down: Stir to a temperature of 26°C, then put it in a refrigerator at 3°C ​​and let it stand until the inclusions precipitate out of the solution;

[0028] (4) Collect the clathrate: vacuum filtration to collect the clathrate, and recover and clean the clathrate 2-3 times with the filtrate of the collection bottle;

[0029] (5) Drying: Place the in...

Example Embodiment

[0030] Example 3

[0031] The present invention provides a method for cyclodextrin inclusion gasification plant essential oil, which comprises the following steps:

[0032] (1) Add vaporization aid: add vaporization aid (propylene glycol, 100% concentration) and essential oil with a mass ratio of 1:6 in the vaporization reactor; use steam at 120°C for 80 minutes;

[0033] (2) Inclusion reaction: the initial concentration of cyclodextrin is 25%, the mass ratio of cyclodextrin and essential oil is 1:8; the temperature of the saturated system at the end of vaporization is controlled to be 90℃, and the temperature is kept at 70℃ for 1 hour;

[0034] (3) Cooling down: Stir to a temperature of 28°C, then put it in a refrigerator at 4°C and leave it to stand until the inclusions precipitate out of the solution;

[0035] (4) Collect the clathrate: vacuum filtration to collect the clathrate, and recover and clean the clathrate 2-3 times with the filtrate of the collection bottle;

[0036] (5) Dry...

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Abstract

The invention discloses a method of using cyclodextrin to embed gasified plant essential oil and belongs to the technical field of cyclodextrin embedding of the plant essential oil. A key to form a high-utilization-rate inclusion complex is enabling diffusion force of subjective and objective molecules to be in a highly active state, while strength of molecule diffusion force is in gas state, liquid state and solid state. On one hand, cyclodextrin cannot form a gas phase, so that molecule diffusion force of cyclodextrin in the liquid state is highest; on the other hand, volatile oil can form a gas phase when being heated, so that molecule diffusion force of the volatile oil is most active in the gas state. Therefore, a gas-liquid embedding means is utilized to increase chance of contacting between the subjective and objective molecules so as to obtain the high-utilization-rate inclusion complex. The problems of high solvent consumption of a liquid-liquid embedding method and low inclusion-complex utilization rate of a solid-liquid embedding method are solved by the gas-liquid embedding method, in other words, the gas-liquid embedding method does not need or only needs little organic solvent and does not need high-temperature high-pressure special equipment, so that the method is low in energy consumption and suitable for industrial production.

Description

Technical field [0001] The invention belongs to the technical field of cyclodextrin embedding of plant essential oils, and in particular relates to a method for cyclodextrin inclusion and gasification of plant essential oils. Background technique [0002] There are currently three methods for cyclodextrin inclusion of volatile oil to form stable inclusions. The liquid-liquid embedding method has a relatively active molecular diffusion force when the host and guest are in the liquid state, which increases the collision probability of the host and the guest. Therefore, the utilization rate of the embedded object is higher, and the prepared inclusions are of high purity and quality. Good, but because it needs to maintain a liquid state, it consumes a lot of solvents; the gas-solid embedding method does not need to consume a lot of solvents, but because it is only suitable for substances that are prone to produce, it requires professional equipment with high temperature and high pres...

Claims

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Application Information

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IPC IPC(8): C08B37/16
CPCC08B37/0015
Inventor 吴克刚张睿
Owner GUANGDONG UNIV OF TECH
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