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目前显示的是 十一月, 2022的博文

What is the Role and Selection of Emulsifier in Ice Cream Production?

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  What is the Role and Selection of Emulsifier in Ice Cream Production?   The ice cream mixture is an A (gaseous phase ) + (O/W) emulsion. An emulsifier can reduce the tension between oil and water. At the two interfaces, a multi-molecule adsorption film with mechanical strength is formed, so that the dispersed phase particles form a double-electron structure and prevent the particles with the same charge from colliding or coalescing. Improve the dispersity of fat, make the ice crystals in the product fine grain size, smooth texture.   1. R ole of emulsifier  Production Emulsifier has many functions in the process of ice cream production and plays different roles in different stages of production. In the phase of ingredients and homogenization, the emulsifier plays a role in promoting the dispersion of fat and stabilizing the emulsion. Promoting fat cohesion in the aging stage; The freezing stage is to promote the interaction between fat and protein, so that the emul...

The Properties and Functions of Polysorbate 80

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  Polyoxyethylene (20) sorbitan monooleate also known as Polysorbate 80, is a type of nonionic surfactant. polysorbate 80 function function of polysorbate 80 a s an emulsifier, a dispersant, a wetting agent, a solubilizer, and a stabilizer in food, pharmaceutical, cosmetics, pigments, textiles, agrichemicals etc. Like other polysorbates, polysorbate 80 can be used alone or used in combination with sorbitan ester 60, 65 or 80.   polysorbate 80 use Polysorbate 80 can be used as solubilizer in medicines. Research has shown that when e433 polysorbate 80 reaches a certain critical concentration, its hydrophobic parts attract to each other, which forms into micelles, where hydrophobic parts face inwards and hydrophilic parts face outwards. Micelles combine with substances that needs to be solubilized, thereby enhance the solubilities of the substances such as active pharmaceutical ingredients. To optimize solubilization, researchers have suggested to first combine polysorbate 8...

The Properties and Functions of Polysorbate 60

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  Polysorbate 60 is an oily thick liquid or a semi-solid with yellowish or amber color. It has a distinctive odor and slight bitter taste. Polysorbate 60 is a nonionic surfactant that is commonly used in food, personal care, pharmaceutical, industrial and more. There are two ways to synthesize polysorbate 60. The most common way is to go through base catalysis, where diesters, triglyceride and other by-products are produced in the reaction, resulting in dark color and unstable quality product. This type of polysorbate can only be used for petroleum, cleanser, textile and other industrial productions. Another way of synthesis is carried out by etherification and esterification; when etherification is performed prior to esterification, the product appears to be dark colored with high diesters and triglyceride contents and low stability. Whereas when esterification is performed before etherification, the product has lighter color, higher monoester yield and higher stability.   Po...

The Functions of Polysorbate 60

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  Polysorbate 60 is a synthetic ingredient that can be used in cosmetics and skin care to improve the texture of the formulation. It can be used as a surfactant, emulsifier and solubilizer. Polysorbate 60 is produced by ethoxylation of sorbitan. Sorbitol is a sugar alcohol that can be found naturally in certain fruits. Ethoxylation is the chemical reaction of adding ethylene oxide to sorbitol. Sorbitan  reacts with 60 units of ethylene oxide, thus the number 60 in its name. The last step is to react with fatty acids derived from vegetable oils, such as lauric acid, palmitic acid, stearic acid or oleic acid.    In addition to its functions in cosmetics, polysorbate 60 can also be used to prepare a variety of products in the food and pharmaceutical industries.   Polysorbate 60 in cosmetics  mainly functions to enhance the emulsification and lubricity, and is suitable for long-term storage. Polysorbate containing 60 oxyethylene units is a hydrophilic nonionic ...

The Functions of Nonionic Surfactants in Productions -2

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  The Functions of Nonionic Surfactants in Productions -2   1. Nonionic surfactants in leather production The need of nonionic surfactant is limited in leather production, however nonionic surfactant is very important in enhancing the quality of leather. Leather production includes pre-treatment, tanning, fatliquoring, dyeing, finishing and many other processes. Among these processes, nonionic surfactants are mainly used in tanning and fatliquoring. In practice, nonionic surfactant polyoxyethylene ethers are often used to give the leather a better hand feeling, so that the final leather produced appears smoother and has a more vivid color.   2. Nonionic surfactants in coal production In coal production, nonionic surfactants determine the quality of coal. Due to ubiquitous problems of high ash content and high humidity in coal, nonionic surfactant becomes an indispensable chemical in the production of coal. Flotation is often used in coal production, where air is injected ...

Sorbitan Sesquioleate

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  Sorbitan sesquioleate, also known as SSO, is synthesized by the esterification of sorbitan with oleic acid. At room temperature, it is in the form of a yellow viscous liquid. Sorbitan sesquioleate is a W/O emulsifier with an HLB value of 3.7. It is soluble in ethanol, ethyl acetate, petroleum, and toluene.    CAS NO.: 8007-43-0   MOLECULAR FORMULA: C33H60O6.5   MOLECULAR WEIGHT: 560.8   Sorbitan Sesquioleate HLB Value: 3.7   Sorbitan Sesquioleate MSDS   Technical Information of Sorbitan Sesquioleate According to Q/GDRH 006-2020, other parameters over the sorbitan sesquioleate are available upon request.   Parameters Unit Standard value Acid value mg KOH/g ≤14.0 Saponification value mg KOH/g 143~165 Hydroxyl value mg KOH/g 182~220 Moisture w/% ≤1.5   Sorbitan Sesquioleate Uses At present, sorbitan sesquioleate is widely used as emulsifiers in cosmetics, explosives, textile, and printing industries. It can effectively act as an emulsifie...