A kind of highly stable cyclodextrin emulsion based on interfacial regularization strategy and its preparation method

A cyclodextrin and high stability technology, applied in the field of high stability cyclodextrin emulsion and its preparation, can solve the problems of long reaction time and cumbersome steps, and achieve the effect of high flocculation stability, simple preparation process and environmental friendliness

Active Publication Date: 2022-03-08
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned esterification reaction usually requires relatively harsh conditions: most of the solvents used are organic solvents, or the reaction time is long and the steps are cumbersome

Method used

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  • A kind of highly stable cyclodextrin emulsion based on interfacial regularization strategy and its preparation method
  • A kind of highly stable cyclodextrin emulsion based on interfacial regularization strategy and its preparation method
  • A kind of highly stable cyclodextrin emulsion based on interfacial regularization strategy and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] (1) Preparation of cyclodextrin aqueous solution: add 0.72 parts by mass of β-cyclodextrin to 45 parts by mass of water, and stir magnetically for 60 minutes until completely dissolved;

[0033] (2) Preparation of primary emulsion: first, the cyclodextrin aqueous solution prepared in step (1) is used as the water phase, and 10 parts by mass of soybean oil is used as the oil phase; Perform emulsification treatment at rpm for 4 minutes, and then homogenize under high pressure at 300 bar for 5 minutes to obtain cyclodextrin primary emulsion;

[0034] (3) Preparation of the final emulsion: Add 45 parts by mass of the concentration of 0 to 1% cotton nanocellulose (CNF-C) suspension to the above-mentioned primary emulsion, use a high-speed shear emulsifier to carry out emulsification treatment at 10000rpm for 4min, and then 300bar high-pressure homogenization for 5 minutes to obtain the final highly stable cyclodextrin emulsion.

[0035] The technical effects of the cyclodex...

Embodiment 2

[0046] (1) Preparation of cyclodextrin aqueous solution: add 0.72 parts by mass of β-cyclodextrin to 45 parts by mass of water, and stir magnetically for 60 minutes until completely dissolved;

[0047] (2) Preparation of primary emulsion: first, the cyclodextrin aqueous solution prepared in step (1) was used as the water phase, and 20 parts by mass of peony seed oil was used as the oil phase; then the oil phase and the water phase were mixed, and a high-speed shear emulsifier was used to Carry out emulsification treatment at 10000rpm for 4min, then homogenize under high pressure at 300bar for 5min to obtain cyclodextrin primary emulsion;

[0048] (3) Preparation of the final emulsion: Add 45 parts by mass of the wood pulp nanocellulose suspension with a concentration of 0 to 1% to the above-mentioned primary emulsion, use a high-speed shear emulsifier to emulsify at 12000rpm for 4min, and then homogenize under 400bar high pressure 6min to obtain the final highly stable cyclode...

Embodiment 3

[0050] (1) Preparation of cyclodextrin aqueous solution: add 0.72 parts by mass of β-cyclodextrin to 45 parts by mass of water, and stir magnetically for 60 minutes until completely dissolved;

[0051] (2) Preparation of cyclodextrin primary emulsion: first, the cyclodextrin aqueous solution prepared in step (1) is used as the water phase, and 30 parts by mass of Ingot maple seed oil is used as the oil phase; The cutting emulsifier was used for emulsification treatment at 14000 rpm for 2 minutes, and then 500 bar high-pressure homogenization for 8 minutes to obtain cyclodextrin primary emulsion.

[0052] (3) Preparation of the final emulsion: Add 45 parts by mass of bacterial nanocellulose suspension with a concentration of 0 to 1% to the above-mentioned primary emulsion, use a high-speed shear emulsifier to emulsify at 10,000 rpm for 4 minutes, and then homogenize under 300 bar high pressure for 5 minutes , to get the final high stability cyclodextrin emulsion.

[0053] The ...

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Abstract

The present invention relates to a highly stable cyclodextrin emulsion based on interface regularization strategy and its preparation method. The aqueous solution prepared by dissolving cyclodextrin in water is used as the water phase, and the vegetable oil is used as the oil phase, which is emulsified by mixing and high-speed shearing. , high-pressure homogenization into primary emulsion; then add a certain concentration and volume of nanocellulose as an interface regularizer, and obtain a highly stable cyclodextrin emulsion after mixing, high-speed shearing and high-pressure homogenization. The present invention has the following advantages: (1) cyclodextrin and vegetable oil can spontaneously form clathrates at the oil-water interface, and further assemble into an interface film; (2) nanocellulose regulates the oil-water interface film through emptying, making it formed by The loose becomes compact, thereby improving the viscoelasticity and deformation resistance of the interfacial film; (3) changing the type, concentration, and aspect ratio of nanocellulose can effectively regulate the droplet size and flocculation behavior of cyclodextrin emulsion.

Description

technical field [0001] The invention belongs to the technical field of emulsion preparation, and in particular relates to a highly stable cyclodextrin emulsion based on an interface regularization strategy and a preparation method thereof. Background technique [0002] Cyclodextrin (Cyclodextrin, CD) is a cyclic oligosaccharide formed by connecting glucose units through 1,4-α-glycosidic bonds. Those composed of 6, 7 or 8 glucopyranose units are called α-CD, β-CD or γ-CD, respectively. The CD cavity is composed of hydrogen atoms of C-3, C-5 and oxygen atoms of C-4, and the interior of the cavity has hydrophobic properties, while the outer shell has hydrophilic properties. Cyclodextrins can form clathrates with guest molecules through the cavity structure, including polar compounds (such as alcohols, acids, amines, and small inorganic anions) and nonpolar compounds (such as aromatic and aliphatic hydrocarbons). Studies have shown that cyclodextrin can form clathrates with fa...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): C08J3/03C08L91/00C08L5/16C08L1/02
CPCC08J3/03C08J2391/00C08J2405/16C08J2401/02
Inventor徐化能褚彩玲张连富
OwnerJIANGNAN UNIV