CARRAGEENAN, CALCIUM SALT OF, WITH POLYSORBATE 80

CAS: 977089-29-4 EMULSIFIER OR EMULSIFIER SALT, STABILIZER OR THICKENER

CARRAGEENAN, CALCIUM SALT OF, WITH POLYSORBATE 80 is a food additive used primarily as an emulsifier, stabilizer, and thickener in certain food applications.

What It Is

CARRAGEENAN, CALCIUM SALT OF, WITH POLYSORBATE 80 is an additive composed of a calcium salt of carrageenan combined with the emulsifying agent polysorbate 80. It is identified by CAS number 977089-29-4 and is recognized by the U.S. Food and Drug Administration in the Substances Added to Food inventory as a technical effect ingredient serving as an emulsifier or emulsifier salt, stabilizer, or thickener in foods. Carrageenan itself is a high-molecular-weight hydrocolloid derived from red seaweeds (Rhodophyceae), where long chains of sulfated polysaccharides provide gelling and thickening functions in aqueous systems. In the combination with polysorbate 80, the calcium salt form helps integrate the surface-active properties of polysorbate 80 with carrageenan to improve processability and functional behavior in specific food manufacturing operations. As a complex food additive combining two functional constituents, it is not simply a single chemical but rather a formulation used to enable efficient separation and handling of carrageenan and its salts during processing and for technological effects in finished food products. Regulatory inventories list it under this specific name, indicating recognition for its technical roles rather than as a naturally occurring substance or nutrient in food products. Its inclusion in authoritative inventories provides context for its identity and functional classification within food ingredient regulatory frameworks. Understanding this additive requires recognizing both components: the carrageenan base, which contributes structural and thickening behavior due to its hydrocolloid nature, and the polysorbate 80 component, which is a nonionic surfactant employed to improve emulsification and processing performance. The combined material is designed to meet specific technological requirements in food production, particularly in gel-based foods and systems where stability and texture are important.

How It Is Made

The production of CARRAGEENAN, CALCIUM SALT OF, WITH POLYSORBATE 80 involves combining a purified carrageenan salt with a controlled amount of polysorbate 80. Carrageenan itself is obtained by aqueous extraction from certain species of red seaweed, followed by purification steps such as alcohol precipitation, drum drying, and adjustment of cation content to produce calcium salts with desired functional properties. Once refined, the carrageenan component is blended with polysorbate 80 under controlled conditions. In the context of the FDA regulation for carrageenan with polysorbate 80, the mixture is specifically produced so that the carrageenan and its salts contain no more than 5 percent by weight of polysorbate 80. During manufacturing, polysorbate 80 serves a particular role, usually to facilitate separation of sheeted carrageenan from drying rolls in industrial processing. The combined additive formulation is typically prepared in ways that maintain the intrinsic gelling, stabilizing, and thickening properties of carrageenan while incorporating the surfactant effect of polysorbate 80. This process does not materially change the molecular identity of the carrageenan polymer but does associate it with the surface-active polysorbate component. Industrial-scale preparation adheres to food additive specifications and relevant processing conditions outlined in regulatory guidance to ensure consistent performance and compliance with labeling requirements.

Why It Is Used In Food

The primary purpose of using CARRAGEENAN, CALCIUM SALT OF, WITH POLYSORBATE 80 in food systems is to achieve specific technological functions that neither component alone could accomplish as efficiently. Carrageenan derivatives are known for their ability to thicken, stabilize, and gel aqueous food systems, providing desirable textures, moisture retention, and system stability. By incorporating polysorbate 80, a nonionic emulsifier, the formulation can exhibit improved processability, facilitate separation and handling during manufacturing, and support the integration of hydrophobic and hydrophilic phases in complex food matrices. These combined properties are particularly useful in specialized applications, such as gel-based foods and systems where phase stability and textural integrity are crucial. Although carrageenan on its own can provide thickening and gelling across a variety of food types like dairy alternatives and confectionery gels, the calcium salt form adjusts ionic interactions to fine-tune gel characteristics. The addition of polysorbate 80 enhances emulsification and can support dispersion of minor lipid phases or processing aids in carrageenan preparations. Regulatory listings specifically reference its technical use categories, underscoring its roles in food formulation where both emulsification and stabilization are required under specified processing conditions.

Adi Example Calculation

An illustrative ADI calculation explains how a theoretical intake level might be assessed for an additive component. For example, if a food additive has an ADI of X mg per kg body weight per day, a person weighing 70 kg could theoretically tolerate up to 70 times X mg of that additive daily without expected safety concerns. Although carrageenan itself has an ADI described as "not specified," polysorbate 80 on its own has a defined ADI range established by expert committees. In practical terms, exposure from food products containing hydrocolloid-based stabilizers like carrageenan and emulsifiers like polysorbate 80 would normally remain well below the theoretical thresholds when consumed as part of a balanced diet. This example illustrates how ADI values function to contextualize intake levels and provide regulators and manufacturers with benchmarks for safe use, but it should not be interpreted as personal dietary guidance.

Safety And Health Research

Safety research into carrageenan and carrageenan-containing additives has focused primarily on the base carrageenan polymer rather than specific combined formulations. Carrageenan (INS 407) has been reviewed in comprehensive toxicological evaluations by international expert bodies such as JECFA, which historically allocated a group ADI of "not specified" for carrageenan and related substances, signaling that typical dietary exposures do not present safety concerns when used according to good manufacturing practices. Typical evaluations consider toxicology data including long-term animal feeding studies, reproductive toxicity assessments, and observations of gastrointestinal outcomes. Although carrageenan has been the subject of academic and regulatory review regarding hydrocolloid functionality and digestibility, industry and regulatory assessments generally indicate that food-grade carrageenan is not significantly absorbed and is excreted largely unchanged when ingested. Research literature may discuss differential effects of degraded carrageenan (poligeenan), which is not used as a food additive and is not authorized in food products due to observed adverse effects in certain experimental systems; this distinction underscores the importance of differentiating food-grade materials from degraded forms excluded from food use. Evaluations generally focus on ensuring that hydrocolloid additives meet established specifications of identity and purity and that their inclusion at permitted use levels in foods is technically justified and within regulatory frameworks. Given that polysorbate 80 itself has been extensively reviewed by JECFA (INS 433) with its own ADI and specifications, research into polysorbate 80 separately contributes to safety understanding of its use as a food emulsifier. Combined formulations such as calcium carrageenan with polysorbate 80 are governed by regulatory use conditions and recognized technical roles; however, specific toxicological studies exclusive to the combination may be limited, and assessments rely on individual component evaluations.

Regulatory Status Worldwide

In the United States, CARRAGEENAN, CALCIUM SALT OF, WITH POLYSORBATE 80 is listed in the FDA’s Substances Added to Food inventory, confirming that the substance is recognized for its technical effects such as emulsification, stabilization, and thickening in foods. Under 21 CFR 172.623, carrageenan with polysorbate 80 and its salts may be safely produced and used under specified conditions, including limits on the polysorbate 80 content and the concentration of the additive in final foods. This regulation outlines prescribed conditions for production and use, such as restricting polysorbate 80 to no more than 5 percent by weight of the additive and ensuring final foods contain no more than specified levels of polysorbate 80. Beyond the U.S., the broader category of carrageenan additives has been evaluated by international bodies such as the Joint FAO/WHO Expert Committee on Food Additives (JECFA), which has assigned a group acceptance of carrageenan (INS 407) with an ADI described as "not specified," indicating that at typical food use levels there is no safety concern. However, specific numerical allowable intake levels exclusively for the calcium salt with polysorbate 80 combination are not individually provided in international monographs. National and regional food safety frameworks may reference combined formulations differently, often deferring to base additive evaluations and technical function listings, and may have distinct labeling and use requirements in foods depending on local standards and definitions for additive use.

Taste And Functional Properties

In general, carrageenan-based additives are virtually tasteless and odorless, making them suitable for use in foods without imparting sensory characteristics that alter the product's flavor profile. The calcium salt of carrageenan contributes to gel strength, viscosity, and texture, influencing the mouthfeel and structural integrity of gels and thickened systems. When combined with polysorbate 80, the additive supports emulsion stability and helps maintain uniform distribution of water and dispersed phases, which can affect texture and product consistency rather than taste. Polysorbate 80 itself has minimal taste but provides surface activity that assists in creating smooth, homogeneous food systems. The functional behavior of this additive is most apparent in its physical effects: improving gel setting, stabilizing dispersed particles, and enhancing viscosity in targeted applications. The combined properties aid in heat and pH tolerance to some extent, depending on the overall formulation and food matrix. These functional benefits are why such additives are selected in industrial food production where control of texture and phase behavior is necessary.

Acceptable Daily Intake Explained

Acceptable Daily Intake (ADI) is a concept used by international expert committees like JECFA to identify a level of daily intake, expressed per kilogram body weight, below which exposure over a lifetime is not expected to pose appreciable health risks. For foundational additives like carrageenan (INS 407), the ADI has been described historically as "not specified," meaning that based on extensive toxicological data and typical consumption patterns, no numerical limit was considered necessary for food-grade materials. This designation does not imply that intake is recommended but rather reflects that usual exposure levels from permitted uses are not of safety concern. Similarly, polysorbate 80 (INS 433) has been evaluated with a defined ADI range, reflecting established safety thresholds for its total intake across all uses. When considering combined additives such as the calcium salt of carrageenan with polysorbate 80, regulatory frameworks focus on ensuring that use conditions and compositional limits result in exposures that are inherently below levels associated with risk, supported by the safety evaluations of each component. ADI values and regulatory evaluations are determined by expert committees through detailed review of toxicological and exposure data, applying safety factors to account for uncertainties and human variability.

Comparison With Similar Additives

Comparing CARRAGEENAN, CALCIUM SALT OF, WITH POLYSORBATE 80 with other hydrocolloid and emulsifier additives highlights both similarities and differences in functional roles. Carrageenan alone (e.g., kappa-carrageenan) serves as a thickener and gelling agent, whereas other polysaccharide-based hydrocolloids like xanthan gum and guar gum provide thickening and stabilizing functions without gel formation. Hydrocolloids such as locust bean gum may synergize with carrageenan in gel systems, offering distinct textures. On the emulsifier side, polysorbate 80 is one example of nonionic surfactants; lecithin and mono- and diglycerides are alternative emulsifiers with different molecular structures and functional profiles. The combined formulation of carrageenan salt with polysorbate 80 integrates stabilizing and emulsifying behavior, differentiating it from single-component additives by providing tailored processing advantages and specific performance characteristics in selected food matrices.

Common Food Applications Narrative

CARRAGEENAN, CALCIUM SALT OF, WITH POLYSORBATE 80 is recognized within regulatory inventories as an additive that can serve as an emulsifier, stabilizer, or thickener for use in specific food processing operations. In practical food manufacturing contexts, carrageenan derivatives are valued for their ability to create and maintain textures in gel-based products, contribute to moisture retention, and stabilize complex mixtures. For example, hydrocolloid systems that rely on carrageenan can be found in gelled desserts, dairy alternative products, and other structured foods where a smooth, cohesive texture is desirable. By incorporating polysorbate 80 into the calcium carrageenan salt, manufacturers can facilitate certain process steps, such as the separation of sheeted carrageenan from drying equipment, and maintain product consistency in gelled applications. In gel snacks, confectionery gels, and certain dairy analogues, the thickening and stabilizing behavior contributes to mouthfeel and product appearance. These applications reflect how functional hydrocolloid systems are employed to meet consumer preferences for texture and stability in processed foods. The use of this combined additive is typically limited to contexts where regulatory requirements permit its inclusion and where the technological benefits align with product quality objectives, such as ensuring uniform distribution of ingredients and achieving targeted textural outcomes in finished products.

Safety & Regulations

FDA

  • Notes: The FDA regulation confirms permitted use conditions but does not in itself denote a simple approved true flag; specific approval status as a separate additive is tied to regulatory use conditions in the code.
  • Regulation: 21 CFR 172.623

EFSA

  • Notes: EFSA evaluations apply broadly to carrageenan rather than this specific combined additive.

JECFA

  • Notes: JECFA evaluations for carrageenan indicate a group ADI not specified; specific combined formulation data not individually specified.

Sources

Comments

No comments yet. Be the first to share!