Group items tagged

Sorbitan monostearate is a brown waxy substance that is insoluble in water, can disperse in hot water and soluble in hot oil, fatty acids and various organic solvents. It is resistant to acid and alkaline, and has good stability against metal ions. Sorbitan monostearate is compatible with nonionic, most anionic and cationic surfactants. It has numerous properties including emulsifying, dispersing, thickening and lubricating and more.

As an emulsifier, it can increase the affinity between food components, reduce the interfacial tension, improve the quality of food, and the processing performance of food raw materials. In bread and cake, make the protein network more closely connected, enhance the strength of the dough, inhibit the evaporation of water, increase the volume, improve the taste of food. In milk drinks, the original structure of the protein can be stretched out and combined with the hydrophobic region of the expanded protein molecule, thereby increasing the hydrophilicity of the protein and increasing its solubility. This action can improve protein stability and prevent protein aggregation and precipitation.

Polysorbate 60, also known as polyoxyethylene monostearate sorbitan, consists of sorbitol, ethylene oxide, and stearic acid. It has a molecular formula of C64H126O26. At room temperature, it is a pale-yellow paste. It is an O/W emulsifier with a polysorbate 60 HLB value of 14.9. It is soluble in water, ethanol, ethyl acetate, and toluene. Polysorbate 60 is a popular food additive, it is used as emulsifiers in cake, protein drinks, and ice-cream formulations; it can also act as a foaming agent in alcoholic drinks, and as a dispersant in candy making. Besides, also, polysorbate 60 uses as a finisher and lubricant in the textile industry. It is often used in combination with sorbitan monostearate.

Polysorbate 61, also known as polyoxyethylene (4) sorbitan monostearate consists of sorbitol, ethylene oxide, and stearic acid. It has a molecular formula of C32H62O10. At room temperature, it is in the form of pale-yellow to amber-colored oily liquid or paste. It is an O/W emulsifier with an HLB value of 9.6. It is soluble in ethanol, ethyl acetate, and toluene. It can also be dispersed in water.

1. What kinds of sorbitan esters are there? They are distinguished according to different fatty acids. A lot of people do not know what sorbitan esters are. Sorbitan ester are emulsifiers that can be used in many industries, especially in food. Chemical components of sorbitan esters are dehydrated sorbitol fatty acid esters, which are mixtures of esters compounds, formed by the reaction of sorbitols and its mono-anhydride and dianhydride with fatty acids. Sorbitan esters have different forms, for example, amber viscous liquid, yellowish waxy solid, amber viscous oily liquid and yellow oily liquid. Sorbitan esters are common W/O emulsifiers with an HLB values between 1.8 and 8.6, a hydroxyl values between 60 and 360 and a saponification values between 140 and 188. They are not insoluble in water, but soluble in ethanol and easily hydrolyzed by acids, bases and enzymes. Depending on different fatty acids, sorbitan esters can be divided into several varieties, such as sorbitan monolaurate, sorbitan monopalmitate, sorbitan monostearate, sorbitan tristearate, sorbitan monooleate, sorbitan trioleate. Now let's focus on discussing sorbitan monooleate. 2. Sorbitan monooleate and polysorbate 80 emulsifiers are used differently in the food industry. (1) Polysorbate 80 is a kind of polyoxyethylene sorbitan fatty acid esters, which is an amber viscous oily liquid. It can be used as emulsifiers in the production of food industries of beverage, toffee, ice cream, bread, pastry, malted milk, margarine, chocolate ect. (2) Sorbitan monooleate is a kind of dehydrated sorbitol fatty acid esters, which is an amber viscous oily liquid. The sorbitan monooleate can be used as an emulsifier in the food industry of sauce, jam, chocolate, butter, vegetable protein products etc. 3. The ranges of applications of sorbitan monooleate and polysorbate 80 are different. (1) Polysorbate 80 is suitable for deep or light products of carboxylic esters synthesized from animal or vegetable oils.