Lactylated Fatty Acid Esters of Glycerol and Propylene Glycol
Lactylated Fatty Acid Esters of Glycerol and Propylene Glycol, identified as E478 where permitted and applicable, are mixed ester emulsifiers used by food manufacturers to improve fat dispersion, emulsion stability, aeration, shortening functionality, crumb softness, frozen dessert texture and processing tolerance. Because this product category is a mixture rather than a single fixed molecule, industrial buyers should evaluate grade, fatty acid profile, ester value, acid value, melting behavior, physical form, regulatory status and application performance before approval.
Product identity
| Product | Lactylated Fatty Acid Esters of Glycerol and Propylene Glycol |
|---|---|
| Common names | E478, Lactylated Fatty Acid Esters, Lactylic Esters of Fatty Acids, Glycerol and Propylene Glycol Lactylated Fatty Acid Esters, Food Grade E478 |
| Category | Emulsifiers & Surface Active Ingredients |
| Function | Emulsifier, surface-active food ingredient, fat-dispersion aid, plasticizing emulsifier, aeration support, shortening modifier and bakery texture support ingredient |
| E / INS number | E478 where permitted and applicable |
| CAS / identity | Mixture; exact identity and composition depend on supplier process, fatty acid source and ester distribution |
| Typical composition | Mixture of lactylated fatty acid ester components associated with glycerol and propylene glycol ester systems; free fatty acids, lactic acid derivatives, glycerol, propylene glycol and minor ester fractions should be controlled by specification |
| Typical form | Powder, bead, flake, pellet, paste, waxy solid, semi-solid or liquid grade depending on fatty acid chain length, ester profile and supplier standardization |
| Industrial buying focus | Acid value, saponification value, ester value, hydroxyl value, free glycerol, free propylene glycol, free lactic acid, fatty acid profile, melting point, iodine value, peroxide value, colour, odour, heavy metals, source oil, allergen/GMO status, packaging and traceability |
Application fit
E478 is selected when a manufacturer needs a functional emulsifier system that can improve the distribution of fat and water phases, strengthen processing tolerance, support aeration or optimize texture in fat-containing or bakery-type systems.
- Bakery mixes, cakes, sweet goods, dough systems and baked products
- Cake icings, fillings, toppings and fat-based creams
- Edible fat-water emulsions, spreads, creamers and shortening systems
- Frozen desserts, ice cream-style products and aerated fat systems
- Pancake mixes, pudding mixes and dehydrated food systems
- Liquid shortening and household or industrial fat systems
- Precooked instant rice and selected processed carbohydrate systems where permitted
- Formulation projects requiring a surface-active ester emulsifier with controlled fat compatibility
Technical purchasing notes
When reviewing Lactylated Fatty Acid Esters of Glycerol and Propylene Glycol, compare the supplier specification against the intended food application, fat phase, water phase, aeration target, processing temperature, mixing shear, label expectations and local food additive rules. For industrial purchasing, the most useful inquiry includes target grade, application, physical form, fatty acid source, required functionality, packaging size, quantity, destination and documentation requirements.
This emulsifier class is surface-active because it combines fatty acid chains with polar ester groups. In practical formulation, it can help distribute fat, support water-in-oil or oil-in-water interfaces, improve aeration, modify plasticity in shortenings, improve crumb softness, stabilize icings and support texture in frozen or aerated systems. Performance depends on ester composition, melting point, HLB-like behavior, fatty acid profile, dosage, processing temperature and compatibility with other emulsifiers.
Specification parameters to compare
| Parameter | Why it matters industrially | What to request from supplier |
|---|---|---|
| E478 identity and composition | Confirms the material is the intended food-grade additive and not a different lactylate, mono-/diglyceride, propylene glycol ester or industrial ester product. | E478 declaration, food-grade statement, product composition summary, manufacturing route and regulatory statement. |
| Acid value | Indicates free fatty acids and acidic components; high or variable acid value can affect flavour, emulsion behaviour and stability. | Acid value specification, analytical method and COA result. |
| Saponification value | Provides information about esterified fatty acid content and average molecular composition. | Saponification value range, method and lot-specific value. |
| Ester value | Useful for comparing esterification level and functionality between suppliers or grades. | Ester value or calculated ester content, method and specification range. |
| Hydroxyl value | Reflects available hydroxyl functionality and can influence polarity, emulsification behaviour and interaction with water or starch systems. | Hydroxyl value range and test method where included in supplier specification. |
| Free glycerol | Residual glycerol can affect flavour, viscosity, moisture interaction, crystallization and customer specification compliance. | Free glycerol limit and COA result. |
| Free propylene glycol | Residual propylene glycol may be regulated or limited by customer specifications and affects label/regulatory review. | Free propylene glycol limit, method and declaration. |
| Free lactic acid / lactylate fraction | Influences acidity, emulsifier polarity, flavour and compatibility with dairy, bakery and fat systems. | Free lactic acid or lactylate-related parameters where available. |
| Fatty acid profile | Chain length and saturation influence melting point, plasticity, aeration, emulsion type, mouthfeel and compatibility with fats and oils. | Fatty acid profile, source oil declaration and saturated/unsaturated balance. |
| Iodine value | Indicates unsaturation level and relates to oxidative stability, melting behavior and fat compatibility. | Iodine value specification and COA result. |
| Melting point / drop point | Critical for processing, dosing, dispersion, crystallization, shortening plasticity, filling texture and storage handling. | Melting point, drop point, softening point or solid fat compatibility data. |
| Moisture / volatile matter | Moisture can affect hydrolysis, caking, microbial stability, flowability and shelf life. | Moisture or loss-on-drying specification and COA result. |
| Peroxide value | Important for oxidation status, flavour stability and shelf life in fat-containing foods. | Peroxide value limit, antioxidant system and storage recommendation. |
| Colour and odour | Dark colour or fatty/acidic odour can affect dairy, icings, bakery, creamers and mild-flavour products. | Colour standard, odour description, sensory suitability and retained reference sample. |
| Particle size / physical form | Controls dispersion, melting, dosing, dusting, blend uniformity and handling in dry mixes or fat systems. | Powder mesh, flake size, bead size, bulk density or viscosity depending on form. |
| Heavy metals and contaminants | Required for food safety, customer approval, regulatory review and import documentation. | Lead, arsenic, cadmium, mercury and other relevant contaminant limits with COA or declaration. |
| Allergen and GMO status | Fatty acid source, glycerol source, lactic acid fermentation substrate and carrier system may affect customer documentation. | Allergen declaration, GMO statement, source-oil declaration and fermentation-substrate statement where required. |
| Batch traceability | Essential for supplier approval, audits, complaint handling, export documentation and recall systems. | Lot number, production date, expiry or retest date, manufacturer name, origin and packing list. |
Application guidance by industry
| Industry / application | Technical role | Key validation points |
|---|---|---|
| Bakery mixes and baked products | Supports fat dispersion, dough or batter tolerance, aeration, crumb softness, volume and texture uniformity in selected baked systems. | Flour type, fat system, sugar level, mixing time, baking profile, crumb grain, volume, softness, shelf-life texture and interaction with mono-/diglycerides or DATEM. |
| Cakes, icings, fillings and toppings | Improves fat-water interface control, aeration, creaminess, stability, spreadability and processing tolerance. | Fat type, water phase, sugar solids, whipping, density, hold stability, temperature cycling, mouthfeel and flavour release. |
| Edible fat-water emulsions and creamers | Supports emulsion formation, fat dispersion, anti-separation performance and processing robustness in fat-water systems. | Oil type, water phase, protein system, homogenization, heat treatment, droplet size, creaming, sediment and shelf-life stability. |
| Frozen desserts and aerated systems | May assist aeration, fat destabilization control, melt behaviour, dryness, overrun and texture in combination with stabilizers. | Fat source, stabilizer blend, homogenization, ageing, freezing curve, overrun, meltdown, heat shock and sensory creaminess. |
| Shortenings and plastic fat systems | Can modify plasticity, aeration, creaming performance, fat distribution and performance in bakery or household shortening systems. | Solid fat content, crystal behaviour, creaming test, melting point, oxidative stability, storage temperature and application performance. |
| Pancake and pudding mixes | Improves powder dispersion, fat integration, batter consistency, mouthfeel and preparation tolerance in dry mix systems. | Powder flow, dispersibility, wetting, lumping, viscosity, heating step, consumer preparation and shelf-life stability. |
| Instant rice and processed carbohydrate systems | May support processing tolerance, texture uniformity, fat distribution and rehydration performance where permitted. | Rehydration time, texture, surface stickiness, oil uptake, process temperature and finished product sensory quality. |
| Chocolate or compound coating projects | May be reviewed for fat-phase compatibility and surface-active behaviour, but suitability depends strongly on grade and target viscosity profile. | Viscosity curve, yield value, tempering behaviour, bloom risk, flavour impact and compatibility with lecithin or PGPR. |
Processing and formulation considerations
- Confirm permitted use before formulation. E478 is market- and category-dependent. Verify destination-country rules, food category, use level, label declaration and customer restrictions before trials.
- Match grade to physical process. Powder and bead grades may work well in dry blends; flake or waxy grades may require melting; liquid or paste grades may be easier in fat-phase dosing.
- Disperse into the correct phase. Many ester emulsifiers perform best when pre-dispersed in the fat phase or melted into shortening before water or dry ingredients are added.
- Control melting and crystallization. If the grade has a waxy or solid character, incomplete melting can create specks, poor distribution and inconsistent aeration or texture.
- Optimize dosage by function. Required dosage depends on whether the target is aeration, emulsification, crumb softness, processing tolerance, fat dispersion or release performance.
- Check compatibility with other emulsifiers. E478 may be used with mono- and diglycerides, lecithin, DATEM, SSL, CSL, PGPR, sorbitan esters or polyglycerol esters depending on application and regulation.
- Validate sensory impact. Free fatty acids, lactic acid derivatives and oxidation status can influence flavour. Run sensory checks in mild-flavour products such as icings, dairy desserts and creamers.
- Monitor shelf-life stability. Review oxidative stability, hydrolysis, texture drift, emulsion separation, fat bloom, caking or viscosity changes through the intended shelf life.
For R&D teams
Request samples in the same physical form required for production. Test dose response, aeration, emulsion stability, crumb softness, fat dispersion, melt behaviour, sensory impact and compatibility with the existing emulsifier system.
For QA teams
Build an approval file covering E478 identity, mixture composition, acid value, saponification value, ester value, fatty acid profile, free glycerol, free propylene glycol, heavy metals, allergens, GMO status and traceability.
For procurement teams
Compare offers by grade, functionality, physical form, fatty acid source, technical support, packaging, minimum order quantity, lead time, shelf life, supply continuity, origin and total cost-in-use.
For production teams
Confirm melting requirements, dosing temperature, powder handling, pumpability, pre-blending method, addition point, mixing shear, tank cleaning, allergen segregation and warehouse storage before scale-up.
Quality-control and incoming inspection
A practical incoming inspection plan for E478 should include document review, packaging inspection, lot number verification, appearance check, odour check, physical-form confirmation and application testing. Because this additive is a mixture, lot-to-lot functional testing in the target matrix is often more useful than relying only on chemical parameters.
- Visual check: confirm expected powder, bead, flake, paste, waxy solid or liquid appearance and absence of foreign matter, caking, leakage or heat damage.
- Odour check: evaluate for rancid, oxidized, acidic, burnt or solvent-like odours that may affect finished product quality.
- Physical check: verify melting point, flowability, bulk density, viscosity or particle size depending on the purchased form.
- Functionality check: test aeration, emulsion stability, batter tolerance, crumb softness, fat dispersion or release performance in the intended application.
- Chemical check: review acid value, saponification value, ester value, free glycerol, free propylene glycol, peroxide value and fatty acid profile.
- Compliance check: confirm E478 declaration, supplier specification, destination-market suitability, label wording and customer-specific requirements.
Recommended documentation package
A complete industrial sourcing file for Lactylated Fatty Acid Esters of Glycerol and Propylene Glycol should support supplier approval, import clearance, customer documentation, regulatory assessment and batch release.
- Product specification or technical data sheet
- Certificate of analysis for offered batch or representative lot
- Food-grade declaration
- E478 regulatory statement where applicable
- Mixture identity and composition statement
- Manufacturing process summary where available
- Fatty acid source declaration
- Acid value, saponification value and ester value
- Hydroxyl value where specified
- Free glycerol statement
- Free propylene glycol statement
- Free lactic acid or lactylate-related specification where available
- Fatty acid profile and iodine value
- Melting point, drop point or softening point
- Moisture or volatile matter
- Peroxide value and oxidative stability statement
- Colour, odour and sensory suitability statement
- Heavy metals and contaminant statement
- Microbiological specification where applicable
- Safety data sheet where applicable
- Allergen declaration
- GMO statement
- Halal certificate where required
- Kosher certificate where required
- Vegan or vegetarian statement when needed
- Origin and manufacturer statement
- Shelf-life and storage recommendation
- Label draft and packaging details
- Pallet configuration and net/gross weight
- Country-of-origin and export documentation
Storage, handling and packaging
Lactylated Fatty Acid Esters of Glycerol and Propylene Glycol should be stored in original sealed packaging in a clean, dry and odour-free warehouse. Protect the product from moisture, excessive heat, direct sunlight, oxygen exposure, pests and strong odour sources. Waxy, flake or bead grades may soften or cake under high temperature, while liquid and paste grades may require controlled heating for pumpability according to supplier instructions.
Typical packaging may include PE-lined bags, cartons, fibre drums, pails, steel or plastic drums, IBCs, boxes, foil-lined bags or palletized export units depending on grade and physical form. For industrial shipments, buyers should confirm net weight, inner liner, heating requirements, tamper seal, batch coding, shelf life at dispatch, pallet dimensions, container loading quantity and any allergen, GMO, halal, kosher or customer-specific segregation requirements.
How to request this product
Send the product name, target grade, application, desired technical effect, physical form, fatty acid source preference, reference specification, quantity, destination country, packaging preference, expected shipment date and required documents. If you already purchase E478, attach your current specification, certificate of analysis, label, application test results or supplier reference so alternatives can be compared more accurately.
Recommended inquiry details
- Product identity: Lactylated Fatty Acid Esters of Glycerol and Propylene Glycol, E478, Lactylated Fatty Acid Esters or the exact name used in your formula.
- Application: bakery mix, baked product, icing, filling, topping, frozen dessert, creamer, shortening, fat-water emulsion, pancake mix, pudding mix or processed carbohydrate system.
- Required grade: powder, bead, flake, paste, waxy solid, liquid, high-melting grade, dispersible grade, bakery grade, shortening grade or customer-specific emulsifier blend.
- Specification target: acid value, saponification value, ester value, hydroxyl value, free glycerol, free propylene glycol, fatty acid profile, melting point, peroxide value and moisture.
- Process conditions: addition point, melting temperature, fat type, water phase, mixing shear, baking/freezing/heating profile and desired functional effect.
- Quantity: laboratory sample, pilot order, monthly demand, annual contract, pallet quantity or container volume.
- Destination: country, port, Incoterms, required import documents and delivery schedule.
- Compliance needs: E478 declaration, halal, kosher, allergen, GMO, vegan, origin, contaminant, microbiology or customer-specific declarations.
Useful answers
What is Lactylated Fatty Acid Esters of Glycerol and Propylene Glycol used for in food manufacturing?
It is used as an emulsifier and surface-active food ingredient in selected food systems where it can support emulsion stability, aeration, fat dispersion, bakery performance, crumb softness, shortening functionality, frozen dessert texture and processing tolerance.
Is E478 a single chemical?
No. E478 is normally a mixture of related lactylated fatty acid ester components. Composition, fatty acid source, ester distribution and physical form can vary by supplier, so buyers should request a detailed specification and COA.
Which applications should be checked first?
Check the exact food category and market rules before use. Potential review areas include bakery mixes, baked goods, icings, fillings, toppings, fat-water emulsions, frozen desserts, liquid shortening, pancake mixes, pudding mixes and selected processed systems where permitted.
What is the difference between E478 and other emulsifiers?
E478 is a lactylated mixed ester emulsifier. It differs from mono- and diglycerides, lecithins, DATEM, SSL, CSL and propylene glycol esters by ester structure, polarity, fat compatibility, melting behaviour and application performance.
Which specification parameters are most important?
Key parameters include acid value, saponification value, ester value, hydroxyl value, free glycerol, free propylene glycol, free lactic acid, fatty acid profile, iodine value, melting point, moisture, peroxide value, colour, odour, heavy metals, source oil, allergen status, GMO status, shelf life and batch traceability.
Can Global Food Additives source Lactylated Fatty Acid Esters of Glycerol and Propylene Glycol?
Global Food Additives can review sourcing options for E478 according to target grade, physical form, application, specification, quantity, destination country, packaging preference, shipment schedule and documentation requirements.
Which documents should be requested?
Buyers commonly request a technical data sheet, certificate of analysis, food-grade declaration, E478 statement where applicable, mixture identity statement, fatty acid source declaration, allergen declaration, GMO statement, halal or kosher certificates when required, shelf-life information, label details and packing list.
Is this product permitted in every country?
No. Food additive use depends on destination-market rules, exact grade, food category, maximum use level, label requirements and buyer responsibility. The final manufacturer should confirm compliance before commercial production.
What information should I send for a quotation?
Send the product name, E number, grade, physical form, application, target functionality, reference specification, quantity, destination country, packaging preference, Incoterms, expected shipment date and required documents. Sharing an existing COA or supplier specification helps compare alternatives faster.
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