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Controlled-release osmanthus essential oil molecule microcapsule inclusion compound and preparation method thereof

A technology of osmanthus essential oil and molecular microcapsules, which is applied in the direction of microsphere preparation, microcapsule preparation, essential oil/fragrance, etc. It can solve the problems of poor stability, easy oxidation and difficult storage of osmanthus essential oil, achieve good results, and expand development and application Good results for outlook, stability and long-lasting usability

Inactive Publication Date: 2015-02-18
HENAN ACADEMY OF SCI CHEM RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these good efficacy and physiological activity are easily oxidized, volatilized, difficult to preserve, poor stability and other physical properties of sweet-scented osmanthus essential oil, so that its product development and application are greatly restricted
[0003] Therefore, develop a kind of clathrate that can change Osmanthus osmanthus essential oil easy oxidation, volatilization, difficult preservation, poor stability, liquid oily osmanthus osmanthus essential oil is prepared into the solid product that has stability, long-lasting usability both good, can be very Well expand the scope of development and application of osmanthus essential oil
[0004] The Chinese patents of related spices or essential oil microcapsule inclusion compounds include CN 1449681A, CN 101240244A, CN 101240223A, CN 1146303A and CN 1057755A, and they all adopt composite wall materials to prepare corresponding microcapsule inclusion compounds through interfacial polymerization. Environmentally friendly and non-toxic new β-CD molecular microcapsules interact with osmanthus essential oil to synthesize controlled-release osmanthus essential oil molecular microcapsule inclusion compound and its preparation method has not been reported yet

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] In a 50 mL three-neck flask, add 8.00 g of β-CD (that is, β-cyclodextrin), and then add 15.20 g of deionized water, and heat and stir in a water bath at 50 °C to dissolve to make a saturated solution of β-CD. Take 1 mL of sweet-scented osmanthus essential oil, add 2 times the volume, that is, 2 mL of absolute ethanol solvent to dissolve and dilute, then drop it into the prepared β-CD saturated solution with a constant pressure separating funnel, and stir for 2.5 h at constant temperature. Then the reaction flask was taken out, cooled in an ice-water bath, and then placed in a refrigerator for 12 h. Take it out again, vacuum filter, wash with absolute ethanol until there is no oil stain on the surface, and finally place it in a vacuum drying oven at 40 ℃ for 24 h to obtain 7.18 g of controlled-release osmanthus essential oil molecular microcapsule inclusion compound. The yield and saturation rate of osmanthus essential oil were 80.22% and 82.01%, respectively. (The dens...

Embodiment 2

[0019] In a 100 mL three-necked flask, 16.00 g of β-CD was added, and then 30.40 g of deionized water was added, heated and stirred in a water bath at 50 °C to dissolve to prepare a saturated solution of β-CD. Take 2 mL of sweet-scented osmanthus essential oil, add 2 times the volume, that is, 4 mL of absolute ethanol solvent to dissolve and dilute, then drop it into the prepared β-CD saturated solution with a constant pressure separating funnel, and stir for 2.5 h at constant temperature. Then the reaction flask was taken out, cooled in an ice-water bath, and then placed in a refrigerator for 12 h. Take it out again, vacuum filter, wash with absolute ethanol until the surface is free of oil stains, and finally place it in a vacuum drying oven at 40 ℃ for 24 h to obtain 14.54 g of controlled-release osmanthus essential oil molecular microcapsule inclusion compound. The yield and saturation rate of osmanthus essential oil were 81.23% and 82.85%, respectively.

Embodiment 3

[0021] In a 250 mL three-necked flask, 32.00 g of β-CD was added, and then 60.80 g of deionized water was added, heated and stirred in a water bath at 50 °C to dissolve to prepare a saturated solution of β-CD. Take 4 mL of sweet-scented osmanthus essential oil, add 2 times the volume, that is, 8 mL of absolute ethanol solvent to dissolve and dilute, then drop it into the prepared β-CD saturated solution with a constant pressure separatory funnel, and stir at constant temperature for 2.5 h. Then the reaction flask was taken out, cooled in an ice-water bath, and then placed in a refrigerator for 12 h. Take it out again, vacuum filter, wash with absolute ethanol until there is no oil stain on the surface, and finally place it in a vacuum drying oven at 40 ℃ for 24 h to obtain 29.32 g of controlled-release osmanthus essential oil molecular microcapsule inclusion compound. The yield and saturation rate of osmanthus essential oil were 81.90% and 82.98%, respectively.

[0022] The c...

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Abstract

The invention discloses a controlled-release osmanthus essential oil molecule microcapsule inclusion compound and a preparation method thereof, belonging to the field of fine chemical engineering. By using the yield of the controlled-release osmanthus essential oil molecule microcapsule inclusion compound and the inclusion rate of the osmanthus essential oil as indexes, a beta-CD (beta-cyclodextrin) is utilized to obtain the controlled-release osmanthus essential oil molecule microcapsule inclusion compound. The controlled-release osmanthus essential oil molecule microcapsule inclusion compound prepared by the technique disclosed by the invention converts liquid oily osmanthus essential oil into antioxidation anti-volatilization solid powder, overcomes the defects of high oxidation and volatilization tendency and low stability in the osmanthus essential oil, can enhance the stability and endurability of the osmanthus essential oil, and greatly widens the development and application prospects and the development of the high-added-value products. The preparation method has the advantages of reasonable technique, favorable repetitiveness and high operational safety, and is simple and easy to implement.

Description

technical field [0001] The invention belongs to the field of fine chemical industry, in particular to a controlled-release osmanthus essential oil molecular microcapsule inclusion compound and a preparation method thereof, in particular to the preparation of controlled-release by using a saturated aqueous solution of a biodegradable, environmentally friendly and non-toxic new molecular microcapsule material Method for molecular microencapsulation of osmanthus essential oil. Background technique [0002] Osmanthus fragrans essential oil is usually extracted from the flowers of Osmanthus fragrans var. thunbergii of Osmanthus fragrans by fat-soluble and water-soluble mixed solvent extraction. joint pain etc. Importantly, osmanthus essential oil has strong antioxidant and antibacterial physiological activities. Yet these good efficacy and physiological activity are because of the easy oxidation of sweet-scented osmanthus essential oil, volatilization, difficult preservation, p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J13/02C11B9/00
Inventor 赵俊宏李文锋樊燕鸽薛宝玉侯益民
Owner HENAN ACADEMY OF SCI CHEM RES INST CO LTD