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A kind of sweet orange essence-silk fibroin microcapsule and preparation method thereof

A technology of silk fibroin and sweet orange essence, which is applied in the directions of microcapsule preparation, microsphere preparation, essential oil/spice, etc., can solve the problems of complex preparation method and difficult industrialized production, and achieves good biocompatibility, suitable for The effect of large-scale production and good biosafety

Active Publication Date: 2021-06-11
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The second object of the present invention is to provide a kind of sweet orange flavor that is simple in preparation method and beneficial to industrial production in order to solve technical problems such as the need for high-temperature heating, complicated preparation methods, and difficulties in industrialized production in the preparation process of the above-mentioned silk fibroin microcapsules - The preparation method of silk fibroin microcapsules, the preparation method is to use silk fibroin to emulsify sweet orange essence, then add an inducer and perform freezing to induce the self-assembly of silk fibroin to form a shell of essence microcapsules, and add a crosslinking agent after thawing Obtain sweet orange flavor-silk fibroin microcapsules by solidifying the shell of silk fibroin

Method used

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  • A kind of sweet orange essence-silk fibroin microcapsule and preparation method thereof
  • A kind of sweet orange essence-silk fibroin microcapsule and preparation method thereof
  • A kind of sweet orange essence-silk fibroin microcapsule and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Sweet orange smear - silk fibroin microcapsules, calculated according to the percentage of mass, the composition and content of the raw materials used in the preparation process is as follows:

[0059]

[0060] The molecular weight of the polyvinyl alcohol is 75000-80000;

[0061] The inducer is ethanol;

[0062] The crosslinking agent is glutaraldehyde.

[0063] The above-mentioned preparation method of the above-mentioned orange sperm-silk fibrin microcapsules, specifically includes the steps of:

[0064] (1), 3 g of silk fibroin is added to 81.8 g of deionized water to give a solution of aqueous solution, and then 6 g of sweet orange fragrance is added to the silk fibroid solution, and the rotational speed is 500 rpm, and the temperature is 30 ° C for stirring. Mix for 30 min, then homogeneous at 10,000 r / min for 5 min to give a micro-yellow sweet orange fragrant emulsion;

[0065] (2), 1.5 g of polyvinyl alcohol and 7.5 g of ethanol were sequentially added to the mi...

Embodiment 2

[0068] Sweet orange smear - silk fibroin microcapsules, calculated according to the percentage of mass, the composition and content of the raw materials used in the preparation process is as follows:

[0069]

[0070] The molecular weight of the polyvinyl alcohol is 75000-80000;

[0071] The inducer is a polyethylene glycol having a molecular weight of 380-400;

[0072] The crosslinking agent is glutaraldehyde;

[0073] The above-mentioned preparation method of the above-mentioned orange sperm-silk fibrin microcapsules, specifically includes the steps of:

[0074] (1), 5 g of silk fibroin is added to 79.6 g of deionized water to give a solution of silk fibroidin, and then 8 g of sweet orange sperm is added to the aqueous solution of silk, and the rotational speed is 500 rpm, and the temperature is 30 ° C for stirring. Mix 20 min, then homogeneous at 10,000 r / min for 5 min to give a micro-yellow sweet orange fragrant emulsion;

[0075] (2), 1 g of polyvinyl alcohol and 6 g of p...

Embodiment 3

[0079] Sweet orange smear - silk fibroin microcapsules, calculated according to the percentage of mass, the composition and content of the raw materials used in the preparation process is as follows:

[0080]

[0081]

[0082] The molecular weight of the polyvinyl alcohol is 75000-80000;

[0083] The inducer is acetone;

[0084] The crosslinking agent is a glutamine aminogenase;

[0085] The above-mentioned preparation method of the above-mentioned orange sperm-silk fibrin microcapsules, specifically includes the steps of:

[0086] (1), 4 g of silk fibroin is added to 80.6 g of deionized water to obtain a solution of silk fibroidin solution, and then 8 g of sweet orange fragrance is added to the aqueous solution of silk, and the rotational speed is 300 rpm, and the temperature is 30 ° C for stirring. Mix 40 min, then homogeneous 10 min under 10,000 r / min to get a micro-yellow sweet orange fragrant emulsion;

[0087] (2), 1 g of polyvinyl alcohol and 3 g of acetone are sequen...

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Abstract

The invention discloses a sweet orange essence-silk fibroin microcapsule and a preparation method thereof. The raw materials used for the preparation are calculated by mass percentage from 5-8% sweet orange essence, 3-6% silk fibroin, 1-1.5% Polyvinyl alcohol, 1.5-7.5% inducer, 0.1-0.4% cross-linking agent and the rest of deionized water; first emulsified sweet orange flavor by silk fibroin, and then freeze-induced self-assembly with inducer Sweet orange essence-silk fibroin microcapsules, with an average particle size of 2.5-4.7μm, and a maximum fragrance loading of 41-43%. The sweet orange essence-silk fibroin microcapsules of the present invention have good biological safety and can be widely used in the fields of medicine, daily chemical and the like.

Description

Technical field [0001] The present invention relates to a sweet orange sperm-silk fibrin microcapsule and a preparation method thereof, belonging to fine chemical fields. Background technique [0002] The flavor microcapsules are combined with some stable flavors to obtain a functional capsule that can be released or controlled to release or control. The microcapsules provide protection for the fragrance of the coated, avoiding the effects of environments, thereby enhancing the scope of application, reducing unnecessary losses. Therefore, the flavor microcapsules are used as an important additive, but also have a wide range of application prospects in the fields of food, textiles and daily products, but also gradually in the field of medical products, even in the field of skin care. [0003] At present, the main preparation method of the essence or essential oil microcapsules includes spray drying method, complex polymerization method, package combination legal and emulsion polym...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J13/02C11B9/00
CPCB01J13/02C11B9/0003
Inventor 胡静何磊邓维钧
Owner SHANGHAI INST OF TECH
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