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Agarose-based emulsifier as well as preparation method and application thereof

An agarose-based and emulsifier technology, applied in chemical instruments and methods, transportation and packaging, chemical/physical processes, etc., can solve problems such as lack of amphiphilicity, inability to effectively reduce surface tension and interfacial tension, and limitations. Achieve the effects of reducing flocculation and coalescence, enhancing stability and increasing added value

Active Publication Date: 2019-11-22
HUAQIAO UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because agarose does not have the amphiphilicity required as a surfactant, it cannot effectively reduce surface tension and interfacial tension, and its application as a microcapsule wall material and embedding lipophilic active substances is limited.

Method used

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  • Agarose-based emulsifier as well as preparation method and application thereof
  • Agarose-based emulsifier as well as preparation method and application thereof
  • Agarose-based emulsifier as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A preparation method of agarose-based emulsifier, comprising the following steps:

[0031] Step 1. Weigh 20g of agarose (0.06M, calculated as disaccharide units) and disperse it in a pyridine solvent to form an agarose suspension with a mass concentration of 20%;

[0032] Step 2. Add 21.7g (0.12M) of lauroyl chloride dropwise to the agarose suspension under magnetic stirring at a stirring speed of 350rpm, and react at 80°C for 1 hour;

[0033] Step 3. After the reaction is over, add 100mL of ethanol to terminate the reaction, let it stand for 30 minutes and filter, then wash and filter with ethanol and deionized water in turn;

[0034] Step 4. Finally, 100 mL of ethanol with a volume concentration of 50% is mixed with the product obtained by filtration, the residual organic solvent is removed after rotary evaporation, and the dodecyl agarose-based emulsifier is obtained after drying and crushing.

Embodiment 2

[0036] A preparation method of agarose-based emulsifier, comprising the following steps:

[0037] Step 1. Weigh 20g of agarose (0.06M, calculated as disaccharide units) and disperse it in a pyridine solvent to form an agarose suspension with a mass concentration of 20%;

[0038] Step 2. Add 28.4g (0.12M) palmitoyl chloride dropwise to the agarose suspension under magnetic stirring at a stirring speed of 350rpm, and react at 80°C for 1 hour;

[0039] Step 3. After the reaction is over, add 100mL of ethanol to terminate the reaction, let it stand for 30 minutes and filter, then wash and filter with ethanol and deionized water in turn;

[0040] Step 4. Finally, 100 mL of ethanol with a volume concentration of 50% is mixed with the product obtained by filtration, the residual organic solvent is removed after rotary evaporation, and the hexadecyl agarose-based emulsifier is obtained after drying and crushing.

Embodiment 3

[0042] A preparation method of agarose-based emulsifier, comprising the following steps:

[0043] Step 1. Weigh 20g of agarose (0.06M, calculated as disaccharide units) and disperse it in a pyridine solvent to form an agarose suspension with a mass concentration of 20%;

[0044] Step 2. Add 31.9g (0.12M) stearoyl chloride dropwise to the agarose suspension under magnetic stirring at a stirring speed of 350rpm, and react at 80°C for 1 hour;

[0045]Step 3. After the reaction is over, add 100mL of ethanol to terminate the reaction, let it stand for 30 minutes and filter, then wash and filter with ethanol and deionized water in turn;

[0046] Step 4. Finally, 100 mL of ethanol with a volume concentration of 50% was mixed with the product obtained by filtration, and the residual organic solvent was removed after rotary evaporation, and the octadecyl agarose-based emulsifier was obtained after drying and crushing.

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Abstract

The invention discloses an agarose-based emulsifier. Raw materials comprise agarose and a fatty acid derivative, wherein the molar ratio of the agarose to the fatty acid derivative is (1:2)-(1:4), themolar weight of the agarose is metered by disaccharide units, and the fatty acid derivative is acetyl chloride, propionyl chloride, butyryl chloride, valeryl chloride, hexanoyl chloride, capryloyl chloride, decanoyl chloride, lauroyl chloride, myristoyl chloride, palmitoyl chloride or stearoyl chloride. The invention further discloses a preparation method of the agarose-based emulsifier, esterification modification of the agarose is realized by adopting a solvent method, the process is simple, the efficiency is high, and industrial production is easy to realize. The agarose-based emulsifier has a potential application prospect in the industries of medicines, cosmetics and foods.

Description

technical field [0001] The invention relates to the technical field of emulsifiers, in particular to an agarose-based emulsifier and its preparation method and application. Background technique [0002] An emulsion is a heterogeneous system consisting of one or more discrete substances dispersed in a continuous phase. At present, emulsions are more and more widely used in the food and beverage industry. In addition to the use of emulsifiers in the preparation of conventional cooked meat products such as sausages, sausages, cream foods, and salad dressings, many functional foods or Additives, such as nutrients, flavors, pigments, antibacterial agents and health products, are also made into emulsions and used in food. In order to make the product form a stable emulsion, the key is to choose a suitable emulsifier. Emulsifiers are usually surface-active substances that play two key roles in the formation of emulsions. First, they can promote the formation of emulsions. Second,...

Claims

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Application Information

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IPC IPC(8): B01F17/38B01F17/32C08B37/12C09K23/38C09K23/32
CPCC08B37/0039C09K23/00
Inventor 陈国肖琼肖安风
Owner HUAQIAO UNIVERSITY
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