CARRAGEENAN WITH POLYSORBATE 80

CAS: 977043-68-7 EMULSIFIER OR EMULSIFIER SALT, STABILIZER OR THICKENER

Carrageenan with Polysorbate 80 is a food additive formulation permitted under US regulatory standards for use as an emulsifier, stabilizer, or thickener in specific food applications.

What It Is

Carrageenan with Polysorbate 80 is a type of food additive formulation defined by regulatory inventories as a combination of carrageenan—a high molecular weight sulfated polysaccharide derived from red seaweed—and a small amount of Polysorbate 80, a common emulsifier. Under US regulations, this formulation falls within the class of emulsifiers, stabilizers, or thickeners and is specifically referenced in 21 CFR 172.623, which outlines the conditions under which it may be safely produced and used in foods. The ingredient’s CAS number is 977043-68-7, and it performs technological roles in complex food systems where combined functions of algal hydrocolloid and surfactant facilitate specific food processing operations. The presence of Polysorbate 80 in the mixture is limited to a defined proportion relative to the weight of the carrageenan component as prescribed by regulatory standards, ensuring functional performance without exceeding set levels of surfactant in final food products. Its nomenclature and regulatory classification reflect its combined functional capabilities as recognized by authorities in the food additive space. Carrageenan itself is a class of polysaccharides extracted from various species of Rhodophyceae (red seaweed) and is widely used in food systems for its gelling, thickening, and stabilizing properties. When combined with Polysorbate 80, the mixture retains the hydrocolloid properties of carrageenan while incorporating the emulsifying capabilities of Polysorbate 80. It is important to understand that the regulatory entry for this ingredient is tied to specific production-related functions (e.g., facilitating separation of sheeted carrageenan in manufacturing) rather than broad standalone use in diverse product categories without restrictions. This regulatory framing highlights the dual nature of the ingredient as both a food processing aid and a functional additive that interacts with other food components.

How It Is Made

Carrageenan with Polysorbate 80 derives from industrial processing of carrageenan extracted from red seaweeds, such as Chondrus crispus and other Gigartinaceae and Solieriaceae members, together with the incorporation of a controlled quantity of Polysorbate 80. The manufacturing process begins with the aqueous extraction of carrageenan from harvested seaweed biomass, which is then purified through steps such as filtration, precipitation, and drying to yield refined hydrocolloids. In the context of this specific formulation, Polysorbate 80—a well known nonionic surfactant and emulsifying agent—is introduced during production in a way that aids processing, particularly in facilitating the separation of sheeted carrageenan from drying equipment. Regulatory provisions specify that the resulting product and its salts may contain no more than a fixed proportion of Polysorbate 80 by weight relative to the carrageenan component. This controlled addition ensures that the functional attributes of the hydrocolloid are preserved while providing processing benefits associated with the emulsifier. The purified carrageenan fraction typically consists of long chains of alternating galactose and anhydrogalactose units with varying degrees of sulfation, giving rise to distinct types such as kappa, iota, and lambda carrageenan. These structural variations influence solubility and gelling characteristics, and the manufacturing steps are calibrated accordingly to produce a material that meets defined specifications for food use. Polysorbate 80 is incorporated in a manner consistent with regulatory requirements, ensuring it complies with its own specifications as outlined in separate sections of food additive regulations. The combined product is then dried and often screened to achieve consistent particle size and functional performance for subsequent use in food manufacturing operations. This formulation process is carried out under food-grade conditions, aligning with existing international and national standards for food ingredient production.

Why It Is Used In Food

Carrageenan with Polysorbate 80 is used in food systems primarily to leverage the complementary functional properties of carrageenan and the emulsifier Polysorbate 80. The carrageenan component provides thickening, gelling, and stabilizing functions, which are valuable for modifying texture, improving water retention, and maintaining structural integrity in foods. When combined with a measured amount of Polysorbate 80, the formulation aids in processing steps such as facilitating separation during dehydration or drying, which can improve manufacturing efficiency and yield. These combined technical effects are particularly useful in gelled food products and other complex food matrices where both hydrocolloid rheology and surfactant-assisted dispersion are beneficial. In practical terms, the additive enables formulators to create or maintain desirable textures in gels, emulsions, and suspensions by controlling the interactions among food ingredients—such as water, proteins, fats, and flavors—during processing and in the final product. By acting as a stabilizer, it can help prevent phase separation in multi-component systems, and as a thickener or gelling agent it contributes to the body and mouthfeel of foods. The inclusion of Polysorbate 80 in the formulation improves processing characteristics without altering the essential functional contributions of carrageenan to the food structure. The reasons for its use in specific applications stem from these synergistic functionalities, which address both technological needs in production and desired sensory and quality attributes in finished foods.

Adi Example Calculation

To illustrate the concept of acceptable daily intake (ADI) without implying a specific recommended intake, consider a hypothetical scenario where an additive has an established numeric ADI. For example, if an additive had an ADI of 50 mg per kilogram of body weight per day, a person weighing 70 kg would have an ADI threshold of 3,500 mg per day (calculated as 50 mg/kg times 70 kg). In this context, the ADI represents a safety benchmark rather than a target intake level. For carrageenan and related hydrocolloids where regulatory evaluations may assign an 'ADI not specified' classification, this example serves to explain the framework. In such cases, routine consumption at authorised use levels is understood to be safe without assigning a discrete mg/kg body weight ADI number.

Safety And Health Research

Safety evaluations of carrageenan and related hydrocolloids have been conducted by regulators and expert committees focusing on general toxicological endpoints and technological use. The Joint FAO/WHO Expert Committee on Food Additives (JECFA) has assessed carrageenan in the context of its use as a food additive, noting that safety data available at review meetings did not identify concerns at typical use levels and that certain applications (such as in infant formulas up to specified concentrations) were not considered a concern. Such assessments consider factors including absorption, metabolism, and excretion of carrageenan polysaccharides, which are largely excreted unchanged, reflecting limited systemic uptake. The committee’s evaluations historically resulted in an 'ADI not specified' classification for carrageenan, indicating that, based on available data, the additive did not require a numerical acceptable daily intake value for general food use. These established safety assessments pertain primarily to carrageenan itself rather than to the specific combined additive with Polysorbate 80. Toxicological research in published literature has examined carrageenan’s biochemical interactions, including gastrointestinal fate and potential effects at high doses in experimental models. However, these findings are considered in the context of food-grade hydrocolloids and their physicochemical properties rather than direct indications of risk at authorized use levels. Regulatory evaluations emphasize that food-grade carrageenan and related derivatives are safe when used according to applicable standards. Because Polysorbate 80 has its own regulatory history of safety assessment as an emulsifier, the combined formulation’s safety profile reflects the extensive data on its constituent parts. Overall, safety research supports the utility of carrageenan-based additives in food applications while maintaining a focus on authorized conditions of use as set forth by regulatory bodies.

Regulatory Status Worldwide

In the United States, Carrageenan with Polysorbate 80 is listed as a permitted food additive under Title 21 of the Code of Federal Regulations at section 172.623, which specifies the conditions for its safe production and use, including limits on the proportion of Polysorbate 80 relative to the carrageenan fraction and the concentration permitted in foods. This regulatory entry confirms that the additive may be used in foods within defined parameters and requires labeling that reflects the presence of Polysorbate 80 as part of the mixture. The regulatory status in other jurisdictions may differ, and because this specific combined formulation is primarily referenced in the US regulatory inventory, equivalent authorizations under international systems require separate confirmation from relevant authorities. While the broader class of carrageenan (without Polysorbate 80) has been evaluated by international expert bodies such as the Joint FAO/WHO Expert Committee on Food Additives, which has in past meetings addressed carrageenan and related hydrocolloids, specific evaluations for the combined formulation are not directly provided in international additive compendia. Carrageenan itself, identified in international numbering systems as a food additive with functional classifications, has been widely assessed for safety and functional properties. Regulatory frameworks often distinguish between pure carrageenan and specific processed forms, and ingredient approvals reflect the distinct conditions under which each formulation may be used.

Taste And Functional Properties

Carrageenan with Polysorbate 80, as a combined functional additive, does not impart a distinct flavor to foods at typical usage levels; it is generally regarded as neutral in taste. The carrageenan component contributes to the rheological properties of foods by interacting with water and other food constituents to form gels, increase viscosity, and stabilize dispersed phases. The specific functional behavior of carrageenan in aqueous systems depends on its type (e.g., kappa, iota, lambda), degree of sulfation, and interactions with ions present in the formulation. These properties influence gel strength, elasticity, and thickening capacity. The inclusion of Polysorbate 80 facilitates processes such as uniform distribution of hydrocolloid particles and assists in separation steps during manufacturing, but it does not materially change the sensory profile of the carrageenan in finished foods. In terms of solubility, carrageenan dissolves in hot water and forms a colloidal solution; upon cooling, gels may form depending on the type and formulation. The combined additive is effective in stabilizing emulsions by helping disperse and maintain fine droplets of lipid components in aqueous food systems. It also contributes to texture by altering the flow properties of fluids, enhancing mouthfeel, and providing body to semi-solid foods. The functional properties of this additive are largely driven by the carrageenan fraction’s ability to interact with water and food biopolymers, while the Polysorbate 80 portion serves as an auxiliary agent influencing processing behavior rather than imparting flavor or distinct sensory characteristics.

Acceptable Daily Intake Explained

An Acceptable Daily Intake (ADI) is a regulatory concept that represents a level of daily exposure to a food additive that is considered safe over a lifetime without appreciable health risk. For carrageenan and some related hydrocolloids, expert committees such as JECFA historically classified certain evaluations as 'ADI not specified,' indicating that based on comprehensive toxicological data, establishing a numerical limit was not necessary for general food uses. This designation reflects confidence in the safety of routine dietary exposure to carrageenan at levels typical of food formulations and is distinct from setting a specific numeric mg/kg body weight figure. In contrast, some food additives receive numeric ADI values when available safety data support such quantification. It is important to understand that an ADI is not a recommendation for consumption but a risk assessment threshold. Typical food use of carrageenan-based additives, including formulations with Polysorbate 80, occurs at concentrations substantially below levels that would approach theoretical ADI considerations. The absence of a specified ADI for carrageenan in certain expert evaluations means that regulators have not identified a level of concern that would necessitate a formal numerical limit, but rather have concluded that authorized use levels are safe based on the available scientific evidence.

Comparison With Similar Additives

Carrageenan with Polysorbate 80 can be compared with other hydrocolloid-based additives that serve similar functions in food systems. For example, xanthan gum is another high molecular weight polysaccharide used as a stabilizer, thickener, and suspending agent; it is effective across a wide range of temperatures and pH conditions and is often used in dressings and sauces to provide viscosity. Similarly, guar gum, derived from legume seeds, functions as a thickener and stabilizer in dairy products and baked goods and is known for its high viscosity at low concentrations. Compared with these hydrocolloids, carrageenan gelation properties can be more sensitive to ionic composition and temperature, which influences its selection for specific applications. Another related additive is carboxymethyl cellulose (CMC), a cellulose derivative used as a thickener and stabilizer in bakery and dairy systems. Unlike carrageenan, CMC does not form strong gels but is effective at enhancing texture and preventing syneresis in frozen desserts. Each of these additives contributes to textural modification, but their mechanisms differ—carrageenan forms gels through polymer interactions, while xanthan gum relies on molecular entanglements, and CMC functions primarily by increasing continuous phase viscosity. Formulators select among these based on desired texture, process conditions, and product requirements.

Common Food Applications Narrative

Carrageenan with Polysorbate 80 is applied in a defined set of food manufacturing contexts where the combined functional roles of hydrocolloid and emulsifier support specific processing and quality outcomes. It is primarily utilized in gelled food systems, including dessert gels, aspics, and other structured products, where controlling texture and consistency is essential. In dairy-based gel desserts, puddings, and similar products, the additive helps to build and maintain desired body and mouthfeel while aiding in the uniform distribution of ingredients. Processors also use the formulation in certain confectionery applications where stabilizing dispersed phases and managing viscosity during production are important for product quality. In beverage emulsions and flavored drink systems that rely on colloidal stability, this additive supports the dispersion of suspended particles and contributes to clarity and stability over the product shelf life. Meat analogs and plant-based gels benefit from the gelling and stabilizing actions of carrageenan while Polysorbate 80 assists with processing steps and dispersion. Ready-to-eat cold-set gels and gelatin substitutes also utilize this formulation to achieve consistent texture and structural integrity. Throughout these varied applications, the combined additive enables manufacturers to meet textural and stability objectives that enhance consumer experience and product performance. Because the ingredient functions at relatively low concentrations and does not significantly affect flavor, it is suitable for products where subtle textural modification is desired without sensory impact.

Safety & Regulations

FDA

  • Approved: True
  • Regulation: 21 CFR 172.623

EFSA

  • Notes: No specific EFSA evaluation for this combined formulation identified

JECFA

  • Notes: JECFA evaluates carrageenan hydrocolloids generally; no specific entry for the combined formulation

Sources

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