Preparation method and application of stable Pickering emulsion based on zein/pullulan composite solid particles

A technology of zein and pullulan, which is applied in the directions of emulsion delivery, medical preparations containing inactive ingredients, and medical preparations containing active ingredients, etc., can solve the complex purification method and difficult to achieve multiple PFM protection and digestion problems, to achieve the effect of simple preparation method, improved bioavailability and stability, and good gel properties

CN112544991AActive Publication Date: 2021-03-26HUNAN AGRI PRODS PROCESSING INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2021-03-26

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Abstract

The invention discloses a preparation method and application of a stable Pickering emulsion based on zein / pullulan composite solid particles. The preparation method comprises the following steps: firstly, preparing zein solid particles, then preparing zein / pullulan composite solid particles, and homogenizing the zein / pullulan composite solid particles with an oil phase to construct the stable Pickering emulsion based on the zein / pullulan composite solid particles. The Pickering emulsion can be used for loading various citrus polymethoxylated flavonoid compounds. According to the preparation method disclosed by the invention, zein can achieve neutral wettability, the dosage of pullulan is small, the nutritional value is high, the pullulan is biodegradable, the preparation process is simple,the stability is high, the method is green and safe, and the obtained Pickering emulsion can be used for fresh keeping and drug loading.
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Description

technical field

[0001] The invention belongs to the technical field of food deep processing, and relates to a preparation method and application of a Pickering emulsion, in particular to a preparation method of a Pickering emulsion based on zein / pullulan polysaccharide composite solid particles and its application in Application to enhance the bioavailability of multiple polymethoxylated flavonoids. Background technique

[0002] Pickering emulsion is an emulsion made of solid particles as emulsifiers. These solid particles have a well-defined particle size distribution and controllable surface properties, which can produce irreversible adsorption on the oil-water interface. The stability of the emulsion is closely related to the wettability, particle size and concentration of these solid particles. Pickering emulsion has the advantages of anti-aggregation, flocculation, Oswald ripening, etc. It can solve the adverse effects of foaming, air entrapment, biological interaction...

Examples

Embodiment 1

[0044] A kind of preparation method of Pickering emulsion based on zein / pullulan composite solid particle stabilization of the present invention, such as figure 1 shown, including the following steps:

[0045] (1) Preparation of zein solid particles: 2.4 g of zein was dissolved in 80 mL of 75% (v / v) ethanol aqueous solution and stirred evenly with a magnetic stirrer to form a stock solution. Then pour the stock solution into 160mL ultrapure water, and after stirring continuously for 30min at 25°C and 800rpm, the homogenized solution (particle dispersion) was rotary evaporated at 40°C to spin off excess ethanol and water Finally, a zein solid particle dispersion is prepared, and the mass ratio of the zein solid particle to the total volume of the dispersion is 2% (w / v, g / mL).

[0046] (2) Preparation of zein / pullulan composite solid particles with different mass ratios: dissolve pullulan polysaccharides of different qualities in ultrapure water and stir for 30 minutes to prepa...