CALCIUM STEAROYL-2-LACTYLATE

CAS: 5793-94-2 DOUGH STRENGTHENER, EMULSIFIER OR EMULSIFIER SALT, STABILIZER OR THICKENER, SURFACE-ACTIVE AGENT, TEXTURIZER

Calcium stearoyl-2-lactylate (INS 482) is a permitted food additive used as a dough strengthener, emulsifier/stabilizer and texture-improving agent, especially in baked goods and related products.

What It Is

Calcium stearoyl-2-lactylate is a compound composed mainly of calcium salts of stearoyl lactylic acids and related minor acid salts that functions as a dough strengthener, emulsifier, stabilizer, surface-active agent, and texturizer in food systems. It is identified by CAS number 5793-94-2 and is known in the International Numbering System for Food Additives as INS 482 (i). Its primary role in food formulation centers on modifying the interaction between fats and water, improving dough handling and product structure through surface activity that helps oil and water phases remain mixed. Regulatory frameworks such as the U.S. Code of Federal Regulations set detailed usage conditions for this substance in foods like yeast-leavened bakery products and prepared mixes. In commercial settings, it appears as a free-flowing, cream-colored powder used at controlled levels to achieve specific textural and emulsification outcomes in baked and processed foods. Calcium stearoyl-2-lactylate belongs to the wider family of lactylates, which also includes sodium stearoyl lactylate. The compound’s designation in additive registries reflects its acceptance for direct addition to foods under specified conditions and limits in jurisdictions including the United States and European Union. Its presence is generally noted on ingredient lists under its chemical name or INS code.

How It Is Made

Calcium stearoyl-2-lactylate is manufactured by esterifying stearic acid with lactic acid to form stearoyl lactylic acid esters, followed by neutralization with a calcium salt to yield the calcium salt of the lactylate. The resulting product is a mixture of calcium salts of the primary ester and related acids that conforms to food-grade specification criteria. According to detailed regulatory specifications, the additive must meet defined chemical parameters, including a specified acid number, calcium content, lactic acid content, and ester number, to ensure consistent performance and safety in food applications. This production approach, involving controlled esterification and neutralization, yields a substance that can effectively reduce interfacial tension in dough and food systems, facilitating improved blending of oil and water phases. Manufacturing processes are conducted under quality-controlled conditions appropriate for food additives, and finished materials are typically processed into a powdered form suitable for food formulation. This production route is widely referenced in food safety regulation texts outlining manufacturing requirements for calcium stearoyl-2-lactylate to ensure that it meets prescribed purity and functionality attributes.

Why It Is Used In Food

Calcium stearoyl-2-lactylate is used in food primarily because of its ability to strengthen dough and stabilize emulsions. In baked goods such as breads and rolls, it helps create a more uniform crumb structure, boosts loaf volume, and improves the tolerance of dough to mechanical stress during mixing and proofing. Its surface-active properties enhance the interaction between water and fats, contributing to improved moisture retention and texture. As an emulsifier, it aids in maintaining stable dispersions of fat in aqueous phases, which is important in diverse formulations including prepared bakery mixes and processed food products. Additionally, calcium stearoyl-2-lactylate functions as a whipping aid in products requiring aeration. Its selection by formulators often stems from its multifaceted role as both a dough conditioner and emulsifier, allowing product developers to meet specific textural and processing requirements in a range of foods. Its usage under regulatory controls ensures that benefits are achieved without exceeding defined usage levels that could compromise product quality or regulatory compliance.

Adi Example Calculation

As an illustrative example, the ADI of 20 mg per kilogram of body weight per day established by international expert committees can be applied to a hypothetical person weighing 70 kilograms to estimate total allowable intake. In this scenario, multiplying 20 mg by 70 kg yields a notional value of 1400 mg of additive per day as the upper bound of the ADI for that body weight. This calculation is for illustrative purposes only and does not imply that typical diets reach this level of exposure, nor is it intended as a recommendation for individual intake.

Safety And Health Research

Safety evaluations conducted by international expert bodies have considered calcium stearoyl-2-lactylate for its toxicological profile and metabolic fate. Evaluations by the Joint FAO/WHO Expert Committee on Food Additives (JECFA) assigned an acceptable daily intake (ADI) range and reviewed available data on its safety as a food additive. These evaluations typically consider data from animal studies and human exposure assessments to inform regulatory decisions. Additional assessments, such as those by European food safety panels, have examined exposure estimates and reaffirmed that the additive’s use under established regulatory conditions does not raise safety concerns at typical dietary intake levels. The breakdown products of calcium stearoyl-2-lactylate—lactic acid and stearic acid—are constituents of normal metabolism, contributing to an overall safety profile consistent with extensive use in food.

Regulatory Status Worldwide

In the United States, calcium stearoyl-2-lactylate is permitted for use as a food additive with specific conditions detailed in Title 21 of the Code of Federal Regulations, including section 172.844, which outlines product specifications and maximum use levels for applications such as dough conditioning and whipping agents. These regulatory citations establish the context in which the additive may be safely used in food products under defined limits. In the European Union, the compound is recognized under the food additive system as E482 and is authorized for use subject to applicable EU food additive regulations. Globally, it appears in the Codex Alimentarius with associated INS numbering, providing an international reference for its acceptance as a food additive. Regulatory authorities evaluate such additives to ensure that specified purity criteria and conditions of use maintain food safety and consumer protection.

Taste And Functional Properties

Calcium stearoyl-2-lactylate itself has minimal taste contribution in food when used at typical functional levels, allowing it to provide technological benefits without imparting off-flavors. Its functional properties center on its behavior as a surface-active agent, where it reduces interfacial tension between hydrophobic and hydrophilic phases, facilitating emulsification and improved homogeneity in food systems. From a sensory perspective, the effect of this additive is more commonly perceived through improved texture and mouthfeel, such as softer crumb structure in baked goods and better integration of fat in emulsified systems. Functionally, it is sparingly soluble in water but disperses under typical processing conditions, and it is compatible with a range of food ingredients including flour proteins, lipids, and liquids. These properties make it useful in applications requiring both dough strengthening and stable emulsification over a range of pH and thermal conditions encountered in food production.

Acceptable Daily Intake Explained

An acceptable daily intake (ADI) is a regulatory concept that represents the amount of a substance that can be consumed daily over a lifetime without appreciable health risk, based on available toxicological data. For additives like calcium stearoyl-2-lactylate evaluated by international committees, the ADI is derived using conservative uncertainty factors applied to observed no-effect levels from validated studies. The ADI itself is not a recommended target for consumption but serves as a benchmark that regulatory bodies use to ensure that actual intake from all dietary sources remains below levels associated with safety concern. Estimating exposure relative to the ADI helps regulators set usage conditions and monitor compliance in the food supply.

Comparison With Similar Additives

Calcium stearoyl-2-lactylate and sodium stearoyl lactylate are structurally related additives that share similar functional roles as emulsifiers and dough strengtheners. The sodium form (often referred to as E481) is commonly chosen in certain bakery systems where its specific ionic properties influence dough and crumb behavior differently than the calcium salt. Both are used to improve texture and stability in bakery products, though formulators may select one over the other based on specific processing requirements. Other emulsifiers like lecithins and mono- and diglycerides also serve to stabilize fat-in-water systems, but they differ in molecular structure and functional profiles. For example, lecithins—naturally occurring phospholipids—may impart additional benefits in certain formulations but can behave differently under high mechanical shear. Calcium stearoyl-2-lactylate’s texturizing action complements these additives by offering specific effects on gluten networks and dough handling that are distinct from simple emulsification.

Common Food Applications Narrative

Calcium stearoyl-2-lactylate finds utility across a range of food applications where improved texture, stability, and processing performance are desired. In yeast-leavened bakery products such as breads, rolls, and prepared mixes, it acts as a dough conditioner that contributes to enhanced volume and crumb structure by strengthening the gluten network and improving gas retention during proofing and baking. In such systems, its emulsifying properties help disperse fats uniformly, contributing to consistent texture and product quality. Beyond traditional baked goods, formulators may include calcium stearoyl-2-lactylate in products that require stable emulsification of fat and aqueous phases. Examples include certain prepared mixes, frozen baked goods, and batter-based foods where it assists in stabilizing formulations that go through varying thermal and mechanical processing steps. Its multipurpose functionality makes it a valuable component in industrial and artisan baking alike, where control over texture, dough handling, and finished product appearance is essential.

Safety & Regulations

FDA

  • Approved: True
  • Regulation: 21 CFR 172.844

EFSA

  • Approved: True
  • E Number: E482
  • Adi Display: 20 mg/kg bw per day
  • Adi Mg Per Kg: 20

JECFA

  • Year: 1973
  • Ins Number: 482
  • Adi Display: 0-20 mg/kg bw
  • Adi Mg Per Kg: 20

Sources

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