Description
What Is Sorbitan Monooleate?
- Chemical identity: Ester of sorbitol and oleic acid; also known as Span 80.
- INS number: E494
- Appearance: Amber to brownish viscous liquid.
- HLB value: ~4.3, ideal for water-in-oil (W/O) emulsions.
Key Benefits
- Emulsion stability: Maintains uniform dispersion in W/O systems, especially under heat and shear.
- Wetting and dispersing: Enhances solubility and distribution of hydrophobic ingredients.
- Moisture retention: Helps retain water in baked goods and creams.
- Low foaming: Suitable for applications requiring minimal aeration.
- Synergistic blending: Works well with polysorbates and other sorbitan esters.
Functional Roles
| Function | Description |
| Emulsifier | Stabilizes W/O emulsions in food, cosmetics, and pharma |
| Wetting agent | Improves dispersion of powders and hydrophobic actives |
| Dispersant | Helps distribute solids evenly in formulations |
| Moisture retainer | Enhances hydration and softness in baked and topical products |
| Solubilizer | Assists in dissolving oils and fragrances in aqueous systems |
Applications by Industry
- Food:
- Margarine, sauces, bakery fats: Improves texture, moisture retention, and emulsion stability
- Cosmetics:
- Creams, lotions, sunscreens: Enhances spreadability, emulsion integrity, and skin feel
- Pharmaceuticals:
- Used in emulsified oral suspensions and topical creams
- Industrial:
- Textiles, agrochemicals, lubricants: Acts as dispersant, wetting agent, and stabilizer
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