Stable O/W-type pickering emulsion by using hydroxyapatite nano particles and preparation method thereof

A Pickering emulsion and nanoparticle technology, applied in the field of O/W type Pickering emulsion and its preparation, can solve the problems of poor plasticity and stability, difficult to reach the standard of industrial application and the like, and achieve a simple and easy preparation process. performance, wide applicability, easy to scale up production

Active Publication Date: 2018-01-19
XUCHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally speaking, Pickering emulsions prepared from food components are safer, but most of these emulsions are dilute emulsions with good fluidity, and their plasticity and stability are often poor, making it difficult to meet the standards for industrial applications

Method used

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  • Stable O/W-type pickering emulsion by using hydroxyapatite nano particles and preparation method thereof
  • Stable O/W-type pickering emulsion by using hydroxyapatite nano particles and preparation method thereof
  • Stable O/W-type pickering emulsion by using hydroxyapatite nano particles and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0028] Add 5 g of calcium hydroxide to 200 mL of deionized water and stir thoroughly for about 1 h. Phosphoric acid was added dropwise under rapid stirring, and the change of solution pH was monitored in real time. When the pH was 7.0 and remained unchanged for 1 h, the stirring was stopped. After the solution returned to room temperature and the layers were clearly separated, the supernatant was removed and an equal volume of deionized water was added. After fully stirring, let it stand, remove the supernatant again after the stratification is obvious, add an equal volume of deionized water and stir, and finally obtain a Hap nanoparticle suspension with a solid content of about 3.4%. 5 g of Hap nanoparticle suspension was placed in a 20 mL glass bottle, 5 g of soybean oil was added, and a shear disperser was used at 5000 rpm for 10 min to obtain a stable O / W Pickering emulsion.

[0029] like figure 1 As shown, the Hap nanoparticles prepared in this example are needle-shape...

Embodiment 2

[0032] Put 4 g of the Hap nanoparticle suspension prepared in Example 1 into a 20 mL glass bottle, add 6 g of corn oil, and process it at 8000 rpm for 5 min using a shear disperser, and finally obtain a stable O / W type pico forest lotion.

Embodiment 3

[0034] Take 3 g of the Hap nanoparticle suspension prepared in Example 1 and place it in a 20 mL glass bottle, add 7 g of olive oil, and process it at 8000 rpm for 5 min using a shear disperser, and finally obtain a stable O / W type pico forest lotion.

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Abstract

The invention provides a stable O / W-type pickering emulsion by using hydroxyapatite nano particles and a preparation method thereof. The method is characterized in that a reaction of calcium hydrate and phosphoric acid is used for preparing a biomass material which is a hydroxyapatite nano particles fluid suspension; the hydroxyapatite nano particles are taken as an emulsifier, edible oil or plantessential oil are added, and high-shear dispersion is carried out to prepare the pickering emulsion having good smearing performance and good physical stability. The pickering emulsion prepared by the method has good application prospect in the food and cosmetic industries.

Description

technical field [0001] The invention belongs to the technical field of emulsion preparation, and in particular relates to an O / W Pickering emulsion stabilized by calcium hydroxyphosphate nanoparticles and a preparation method thereof. Background technique [0002] Calcium Hydroxyphosphate [Ca 10 (PO 4 ) 6 (OH) 2 ], also known as hydroxyapatite (hydroxyapatite, Hap), is a surface active material, which has a similar chemical composition and structure to biological hard tissues. Calcium in the human body mainly exists in the form of Hap crystals, and the main component of human teeth is Hap. Because Hap has good bioactivity and biocompatibility, it has no stimulation and repelling effect on tissues after implantation in the human body. It is an ideal biomaterial and has been widely studied in the field of biomedicine. [0003] Emulsion is a thermodynamically unstable dispersion system obtained by uniformly dispersing one liquid in another liquid, and it is widely used in ...

Claims

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Application Information

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IPC IPC(8): A61K8/06A61K8/24A61K8/92A61K9/107A61K47/04A61K47/44A23P20/00
Inventor 王永辉王德国郭卫芸李光辉
Owner XUCHANG UNIV
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