What methods are commonly used to obtain emulsified starch and its main application areas

Emulsified starch is a starch derivative modified by chemical or physical methods, which has excellent emulsifying properties and stability, and is widely used in fields such as food, medicine, cosmetics, printing, and petroleum. The following is a detailed introduction to the preparation methods and application fields of emulsified starch.

1、 Preparation method of emulsified starch

Emulsified starch can be obtained through various methods, mainly including chemical modification and physical modification.

Chemical modification method

The chemical modification method is to chemically modify starch molecules, introduce specific functional groups or substituent groups, change the physicochemical properties of starch, and improve its emulsifying performance. Common chemical modification methods include acetylation, oxidation, esterification, etc. These methods can introduce hydrophobic groups on starch molecules, increase the hydrophobicity of starch, and thus improve its emulsifying ability.

Physical modification method

The physical modification method is to combine starch molecules with emulsifiers through physical means such as heating, stirring, and shearing, forming starch with emulsifying properties. This method does not involve chemical reactions, can maintain the natural properties of starch, and is easy to operate with low cost. Some naturally occurring plant colloids can also be used as a source of emulsified starch, such as guar gum, pectin, etc.

2、 Application fields of emulsified starch

Emulsified starch has a wide range of applications, mainly in fields such as food, medicine, cosmetics, printing, and petroleum.

food industry

Emulsified starch is widely used in the food industry, mainly to improve the texture and taste of food, enhance the stability and preservation of food. Emulsified starch can be used as a thickener, adhesive, stabilizer, etc., and is widely used in pastry, candy, ice cream, beverage, seasoning and other fields. In addition, emulsified starch can also be used as a flour improver to improve the elasticity and water retention of dough, and enhance the quality of bread, cakes, and other flour products.

Medical field

Emulsified starch is also widely used in the pharmaceutical field, mainly for the preparation of pharmaceutical formulations and excipients. Emulsified starch can be used as a drug carrier to improve drug stability, control drug release rate, and reduce adverse odors and side effects of drugs. In addition, emulsified starch can also be used as an excipient for drugs such as tablets and capsules, improving the taste and texture of the drugs.

Cosmetics field

Emulsified starch is mainly used to prepare lotion, face cream and other products in the cosmetics field. Emulsified starch has excellent emulsification and stability, which can improve the quality and stability of cosmetics. It can also be used as a natural moisturizer and thickener, increasing the moisturizing effect and application sensation of cosmetics. In addition, emulsified starch can also be used in the preparation of shampoo, shower gel and other products to improve the foam stability and cleaning effect of products.

Printing and petroleum fields

Emulsified starch can also be applied in the fields of printing and petroleum. In the field of printing, emulsified starch can be used as an additive for ink, improving the viscosity and stability of the ink, increasing the printing effect and drying speed of the ink. In the petroleum field, emulsified starch can be used as an additive in drilling and fracturing fluids to improve their stability and rheology, promoting the drilling and extraction of oil and gas wells.

In summary, emulsified starch, as an important starch derivative, has broad application prospects. With the increasing demand in fields such as food, medicine, and cosmetics, the market prospects for emulsified starch will also become increasingly broad.