SOYA BEAN OIL FATTY ACIDS, HYDROXYLATED

CAS: 977038-88-2 EMULSIFIER OR EMULSIFIER SALT, SOLVENT OR VEHICLE, TEXTURIZER

SOYA BEAN OIL FATTY ACIDS, HYDROXYLATED (CAS 977038-88-2) is listed by the FDA as a food substance used for technical effects including emulsification, solvent or vehicle roles, and texturizing under 21 CFR 173.340. It is classified as a defoaming or antifoaming agent permitted in food processing.

What It Is

SOYA BEAN OIL FATTY ACIDS, HYDROXYLATED is a processed derivative of soybean oil fatty acids that has undergone a chemical modification introducing hydroxyl functional groups on the fatty acid chains. This modification can change the physical and functional properties of the fatty acids compared with unmodified soybean fatty acids. In food applications, it is recognized for its technical functionalities including acting as an emulsifier or emulsifier salt, a solvent or vehicle, and a texturizer, facilitating the incorporation of ingredients that may otherwise be difficult to disperse or suspend uniformly in a food matrix. According to the U.S. FDA’s ‘‘Substances Added to Food’’ inventory, it is listed under Title 21 of the Code of Federal Regulations (CFR) Section 173.340, indicating that it is used as a defoaming agent in food processing operations in accordance with prescribed regulations and conditions. The additive is identified by the CAS number 977038-88-2 and may also be referred to by the synonym SOYBEAN OIL FATTY ACIDS, HYDROXYLATED in regulatory and ingredient inventories. Because this compound is a modified fatty acid mixture rather than a single defined molecular entity, specific PubChem CID data could not be verified with confidence based solely on the available public data. In food regulatory contexts, ‘‘hydroxylated’’ denotes the presence of one or more hydroxyl (OH) groups along the fatty acid chains, which can influence the polarity and emulsifying capacity of the molecules. The base material for this additive derives from soybean oil, a crop-derived source rich in a range of fatty acids. The inclusion of hydroxyl groups can make the fatty acids more hydrophilic compared with unmodified fatty acids, potentially enhancing their interfacial activity between aqueous and lipid phases in food formulations. The term ‘‘texturizer’’ refers to its ability to help modify the mouthfeel, structure, or stability of foods in which it is employed. Although structurally related to natural fatty acids found in vegetable oils, the hydroxylated form is a processed additive designed to meet specific technology needs in food processing rather than a naturally occurring nutrient found in edible oils.

How It Is Made

The production of SOYA BEAN OIL FATTY ACIDS, HYDROXYLATED begins with the extraction of fatty acids from refined soybean oil. Soybean oil itself is a mixture of triglycerides that is first separated from soybean seed material via pressing or solvent extraction. The oil is often refined to remove impurities and then subjected to hydrolysis or saponification to release free fatty acids from the triglycerides. Once free fatty acids are obtained, a chemical hydroxylation process introduces hydroxyl functional groups along the hydrocarbon chains of the fatty acids. While the exact industrial protocols vary by manufacturer and are proprietary, hydroxylation typically involves treatment with reagents capable of adding oxygen across carbon-carbon double bonds or functionalizing the fatty chains to introduce OH groups. The conditions for hydroxylation and subsequent purification steps are designed to produce a material that meets food additive quality standards while removing low molecular weight byproducts, residual reagents, or contaminants. The final product is characterized as a complex mixture of hydroxylated fatty acid molecules, whose exact composition depends on the degree of hydroxylation and the distribution of fatty acids in the starting soybean oil. Typical soybean oil fatty acid profiles include linoleic, oleic, palmitic, and linolenic acids, and the choice of feedstock and process parameters influences the relative abundance of these constituents in the hydroxylated mixture. Quality control and specification testing, as required for food additive approvals, ensure that the product meets regulatory criteria for identity, purity, and technical performance. Manufacturers often monitor parameters such as acid value, hydroxyl content, and absence of undesirable impurities. Because this additive is intended for processing use rather than direct consumer consumption in raw form, the emphasis in its production is on consistency of functional performance and compliance with regulatory manufacturing practices.

Why It Is Used In Food

SOYA BEAN OIL FATTY ACIDS, HYDROXYLATED is used in food processing primarily for its functional properties rather than nutritional contribution. The introduction of hydroxyl groups and the inherent structure of fatty acids allow this additive to perform as an emulsifier or emulsifier salt, solvent or vehicle, and texturizer, fulfilling multiple roles in complex food systems. Emulsification is critical in foods that combine oil and water phases, helping to maintain stable dispersions or prevent phase separation during processing and storage. As a solvent or vehicle, this additive can aid the dissolution or uniform distribution of other ingredients that are poorly soluble in either aqueous or lipid environments. In formulations where traditional solvents or emulsifiers may be insufficient, hydroxylated fatty acids can enhance ingredient compatibility. Its classification under 21 CFR 173.340 as a defoaming agent underscores another use in food equipment cleaning or processing; defoaming agents help control excessive foam generation during mixing, heating, or other unit operations, improving processing efficiency and consistency. The texturizing function relates to how this additive influences the mouthfeel and structural properties of certain foods. By modifying the interfacial properties of fat and water phases and interacting with other food hydrocolloids or stabilizers, SOYA BEAN OIL FATTY ACIDS, HYDROXYLATED contributes to desired textures in specific applications. Overall, manufacturers select this additive when a combination of emulsification, foam control, and textural modification aligns with formulation requirements and regulatory allowances.

Adi Example Calculation

An illustrative example of an ADI calculation requires an established numeric ADI, which is not available for SOYA BEAN OIL FATTY ACIDS, HYDROXYLATED in public regulatory sources. Without a defined ADI value from entities such as JECFA or EFSA, a numerical calculation of daily intake relative to body weight cannot be demonstrated. In regulatory practice, ADIs provide a benchmark for safe lifetime consumption based on toxicological data; because no such numeric benchmark is published in available authoritative sources for this additive, a hypothetical intake example cannot be constructed.

Safety And Health Research

Regulatory inventories, such as the U.S. FDA’s ‘‘Substances Added to Food,’’ catalog food substances that may be safely used for specific technical effects when used in accordance with regulatory conditions, but they do not themselves provide comprehensive toxicological data. For SOYA BEAN OIL FATTY ACIDS, HYDROXYLATED, public regulatory listings indicate its permitted functional use in food processing, yet detailed safety evaluations including chronic toxicity, genotoxicity, or reproductive endpoints specific to this additive are not readily available in the public domain. The absence of explicit toxicological studies in open regulatory databases suggests that formal safety assessments either have not been published or may be managed internally by regulators or industry under confidentiality. General considerations for food processing aids emphasize that substances added during processing are evaluated for safety under their conditions of use. This typically includes assessments for potential adverse effects and assurance that residues in finished foods do not pose safety concerns. For many processing aids with structural similarity to common food components, such as fatty acid derivatives, toxicological concerns are often minimal at levels consistent with functional use. However, without explicit public safety data or formal evaluations from entities such as the Joint FAO/WHO Expert Committee on Food Additives, specific safety endpoints remain undetailed in open sources. In regulatory listings, the focus is on permitted use and the conditions under which the additive is considered safe, rather than detailed hazard studies.

Regulatory Status Worldwide

In the United States, SOYA BEAN OIL FATTY ACIDS, HYDROXYLATED is listed in the FDA’s ‘‘Substances Added to Food’’ inventory and associated with Title 21 CFR Section 173.340, which covers defoaming agents permitted in food processing when used in accordance with prescribed regulatory conditions. The listing under 173.340 indicates that this additive may be used safely in processing operations as a defoaming agent, with compliance obligations defined by the regulation. The CFR provision itself covers a range of defoaming agents and the conditions under which they are considered safe for intended uses, though the text of 173.340 does not enumerate specific limitations for every substance in this category beyond functional allowances for defoaming uses. At present, there is no widely recognized European Union food additive number (E-number) specifically assigned to SOYA BEAN OIL FATTY ACIDS, HYDROXYLATED in the European food additive nomenclature. Similarly, a specific Joint FAO/WHO Expert Committee on Food Additives (JECFA) additive entry with an INS number could not be confidently verified based on available database search results and public information, and numeric ADI values or formal INS designations are not explicitly identified for this compound. Because this additive is principally registered in the U.S. under CFR provisions for processing aids, references to international regulatory permissions are limited or may occur under broader categories of processing agents rather than distinct additive entries.

Taste And Functional Properties

SOYA BEAN OIL FATTY ACIDS, HYDROXYLATED itself does not impart a distinct flavor profile typical of primary food ingredients; rather, its sensory contribution is neutral or minimal, ensuring that it supports formulation without altering the intended taste of the finished product. The functional properties derive mainly from its amphiphilic nature, meaning that parts of the molecule interact favorably with water while other sections associate with lipids. This dual affinity enables the additive to concentrate at oil-water interfaces, reducing interfacial tension and stabilizing dispersed phases. Functional behavior in food processing can include stabilization against separation, improved dispersion of lipid droplets in emulsions, and facilitation of ingredient incorporation. Because hydroxylation increases polarity relative to non-hydroxylated fatty acids, the modified fatty acids may offer improved interaction with aqueous phases, contributing to enhanced emulsification compared with simple fatty acid mixtures. The compound’s performance may be influenced by pH, temperature, and the presence of other formulation components such as proteins, polysaccharides, or salts. In terms of stability, this additive is generally robust under typical processing conditions, including moderate heat and mechanical shear, as is required for many emulsifiers and processing aids. Its physical properties, such as solubility and viscosity contribution, support consistent performance across diverse formulations. The neutral sensory footprint and versatile functional performance make it a useful technical component in formulations where other emulsifiers or processing aids alone may not achieve the desired results.

Acceptable Daily Intake Explained

An Acceptable Daily Intake (ADI) is a regulatory concept that represents the quantity of a food additive that can be consumed daily over a lifetime without appreciable health risk, based on toxicological evaluations and safety factors. For some food additives, regulatory bodies such as WHO’s Joint Expert Committee on Food Additives (JECFA) or the European Food Safety Authority (EFSA) establish explicit ADI values grounded in data from animal studies and uncertainty factors. In the case of SOYA BEAN OIL FATTY ACIDS, HYDROXYLATED, no numeric ADI is readily available in public regulatory databases, and a specific ADI_mg_per_kg value is not established in the authoritative sources reviewed. This means that although the compound is permitted for functional use under specific regulatory provisions, the regulatory literature does not currently provide a quantified lifetime intake guideline such as an ADI. Without an established numeric ADI from regulators, general principles for food processing aids apply: the additive is used at levels sufficient to achieve its functional purpose while minimizing residual presence in the finished food, and regulatory oversight ensures that such uses are safe under typical conditions of use. In the absence of a published ADI, it is not possible to present an example calculation of exposure relative to body weight based on regulatory guidance.

Comparison With Similar Additives

When comparing SOYA BEAN OIL FATTY ACIDS, HYDROXYLATED with other processing aids and emulsifiers, it is useful to consider how functional roles differ across similar additives. For example, lecithin and its derivatives such as hydroxylated lecithin are also employed as emulsifiers and surface-active agents in food formulations. Lecithin is a mixed phospholipid derived from soybean oil that provides emulsification largely by virtue of polar head groups interacting with water and nonpolar tails associating with lipids; hydroxylated derivatives may enhance certain functional properties relative to crude lecithin. By contrast, SOYA BEAN OIL FATTY ACIDS, HYDROXYLATED consists of hydroxylated free fatty acids which act more as defoaming and texturizing agents rather than primary emulsifiers in certain food systems. Another related category includes mono- and diglycerides of fatty acids, often used broadly as emulsifiers, which differ structurally in having glycerol backbones with one or two fatty acid chains and are recognized for stabilizing oil-in-water emulsions in products ranging from baked goods to spreads. Each of these additives supports texture and stability in foods, but they differ in chemical structure and typical functional niche: lecithins and mono- and diglycerides are often primary emulsifiers, while hydroxylated fatty acids may have specialized utility in processing and foam control.

Common Food Applications Narrative

In the food industry, additives that support emulsification, foam control, and texture modification are integral to a wide range of products and processing operations. SOYA BEAN OIL FATTY ACIDS, HYDROXYLATED exemplifies this category of processing aids and is employed in contexts where managing the physical behavior of fats, oils, and mixtures matters for product quality and manufacturing efficiency. For example, in the production of certain sauces and dressings, emulsifiers and texturizers help ensure stable dispersions of oil droplets in aqueous phases so that separation does not occur during filling or storage. Similarly, in baked goods or mixes that incorporate fat components, additives with emulsifying or texturizing capabilities may support uniform batter properties and consistent end-product structure. Processing aids that reduce undesirable foam can improve operations in large-scale mixing and heating equipment. Excessive foam can lead to overflows, inconsistent heating profiles, and challenges with filling or packaging. By including functional agents such as hydroxylated fatty acids in wash waters or processing solutions, manufacturers can mitigate these issues to maintain efficient workflows. Although consumers do not see this additive listed on nutrition panels for most finished foods, its role behind the scenes contributes to texture, stability, and process consistency. Because this additive is permitted under specific regulatory allowances, its use is tailored to applications where its functional benefits align with compliance requirements. Typical scenarios include formulations requiring improved phase interactions, such as dressings, emulsified sauces, certain processed foods, and product lines where foam management is a significant operational consideration. By addressing technical challenges in processing and formulation, such additives support the creation of products that meet both quality and regulatory expectations.

Safety & Regulations

FDA

  • Approved: True
  • Regulation: 21 CFR 173.340

EFSA

  • Notes: No explicit EFSA additive entry or numeric ADI identified in accessible regulatory sources

JECFA

  • Notes: No JECFA additive entry or numeric ADI identified based on database search

Sources

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