Sorbitan Tristearate

STS Sorbitan Tristearate (E492)
Sorbitan tristearate, also known as Span 65, is a nonionic surfactant. It is variously used as a dispersing agent, emulsifier, and stabilizer, in food and in aerosol sprays. As a food additive, it has the E number E492.
The consistency of sorbitan tristearate is waxy; its color is light cream to tan.
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Specifications
Sorbitan tristearate is a nonionic surfactant. It is usually used as an emulsifier and stabilizer in food.
Sorbitan tristearate is a nonionic surfactant. It is permitted as a food additive in fine bakery wares, toppings and coatings, fat emulsions, milk and cream analogues, beverage whiteners, edible ices, desserts, sugar confectionery including chocolate, emulsified sauces, dietary food supplements, chewing gum and dietetic foods.
MAIN APPLICATIONS
Sorbitan tristearate is a lipophilic surface-active agent. It is often used as an emulsifier in combination with polysorbates. It is also used to modify crystallisation of fats. Typical applications: Fine bakery wares, Toppings and coatings for fine bakery wares, Fat emulsions, Milk and cream analogues, Beverage whiteners, Liquid tea concentrates and liquid fruit and herbal infusion, concentrates, Edible ices, Desserts, Sugar confectionery, Cocoa-based confectionery, including chocolate, Emulsified sauces, Dietary food supplements, Yeast for baking, Chewing gum, Dietetic foods intended for special medical purposes, Dietetic formulae for weight control, Carriers and solvents for colours and anti-foaming agents.
STS is a special food emulsifier used mainly to control the crystal form of fats especially in chocolate manufacturing to prevent chocolate blooming.
It can be added to CBS- and CBR based chocolate compounds for bloom prevention and gloss retention and in this way prolong the shelf life of the end product.
Functional Properties:
STS provides the following advantages:
- Provides improved bloom stability to CBS and CBR based compounds.
- Improves the initial gloss on CBS and CBR based compounds and improves the gloss retention.
- Ensures a uniform crystallisation of CBS and CBR.
Dosage:
Typically 0.5 – 1% calculated on the finished compound or 2 – 3% calculated on the CBS or CBR content.  .
Technical specification
Parameters
Acid value(mg KOH/g)≤15
Saponification value(mg KOH/g) 176~188
Hydroxyl value(mg KOH/g)66~80
Moisture (%)<1.5
Arsenic (%)<0.0003
Heavy Metal (%)<0.001