5-DECENOIC ACID

CAS: 85392-03-6 FLAVOR ENHANCER, FLAVORING AGENT OR ADJUVANT

5-Decenoic acid is an organic fatty acid with a medium chain length used in flavor applications. It is identified by CAS 85392-03-6 and may appear in flavor ingredient inventories and technical literature.

What It Is

5-Decenoic acid is a medium-chain unsaturated fatty acid identified by CAS number 85392-03-6 and recognized in chemical inventories as a compound with potential use in flavor formulations. It belongs to a class of organic acids that have an alkene (double bond) within the carbon chain, which can influence aroma properties and reactivity compared to saturated fatty acids. As an ingredient referenced for its role in flavor enhancement and flavoring applications, 5-decenoic acid is described in industrial and chemical supplier resources as having sensory characteristics that may contribute nuanced profiles when included in complex blends. It is chemically represented by the formula C10H18O2 and has a structure consistent with a 10-carbon chain with one site of unsaturation. In flavor science contexts, compounds like 5-decenoic acid are considered alongside many other fatty acids and derivatives that contribute to aroma and taste nuances. Their incorporation into flavor systems is guided by considerations of volatility, odor threshold, and compatibility with other flavor constituents, rather than substantial contributions as bulk nutrients or macronutrients.

How It Is Made

The synthesis of 5-decenoic acid typically involves organic chemical processes that construct or modify carbon chains to achieve the desired chain length and position of the double bond. Common industrial approaches for unsaturated fatty acids involve controlled partial oxidation, catalytic hydrogenation of precursor compounds, or other selective organic transformations that introduce unsaturation at specific sites on a hydrocarbon backbone. In practice, the production of medium-chain unsaturated acids such as 5-decenoic acid may derive from longer fatty acid precursors or could be accomplished via fermentation and biotransformation in research settings, though commercial production tends to rely on established chemical synthesis routes. Facility-level production adheres to standard industrial hygiene and safety protocols for handling organic acids, including controls for temperature, pressure, and reactive intermediates. The purity and quality of 5-decenoic acid intended for flavor applications are important and generally specified in technical data sheets. Specifications often include assay purity, limits on impurities, and physical property ranges. Manufacturers and suppliers provide material safety data sheets (MSDS) and product specifications that guide formulating professionals in selecting grades suitable for flavor work. These documents ensure users understand storage requirements, hazards, and handling procedures in accordance with chemical safety standards.

Why It Is Used In Food

5-Decenoic acid is utilized in food-related settings primarily as part of flavor systems. In the context of flavor formulation, organic acids with defined chain lengths and unsaturation can impart subtle sensory notes or modify the balance of flavor profiles by adding depth or enhancing certain aromatic characteristics. Flavor chemists select compounds like 5-decenoic acid based on their individual odor descriptors, volatility, and how they interact with other components in a flavor blend. The inclusion of such ingredients supports the creation of complex profiles in categories such as dairy, savory, or specialty products where nuanced taste attributes are desired. Their use is technical in nature rather than nutritional, focusing on sensory contribution. The presence of 5-decenoic acid in flavor applications reflects the broader practice of using naturally occurring or synthetically produced organic acids to achieve reproducible and stable sensory outcomes. These substances are chosen to align with regulatory frameworks and safety evaluations that allow their inclusion in food and beverage formulations in accordance with applicable laws and guidelines.

Adi Example Calculation

An ADI example calculation illustrates how intake estimates relate to body weight. Hypothetically, if a flavoring agent had an ADI of X mg per kilogram of body weight per day, a person weighing 70 kilograms would have an ADI of 70 times X milligrams per day. In practice, flavoring agents are included at trace levels in foods, and intake is typically far below such hypothetical thresholds. For 5-decenoic acid specifically, a published numeric ADI is not readily identifiable in primary regulatory databases. Hence, direct calculation using a formal ADI is not applicable at this time. The example calculation serves to explain how intake guidance, when available, is applied for regulatory and safety assessments in food additive evaluation.

Safety And Health Research

Safety assessments for flavoring agents consider a range of toxicological endpoints relevant to human exposure. Expert panels and regulatory bodies evaluate data such as genotoxicity, subchronic toxicity, and reproductive toxicity to inform their conclusions about whether a substance can be safely used in food at intended use levels. For many specialized organic acids, detailed public data may be limited or not extensively published in open literature. In the case of 5-decenoic acid, available chemical resources describe physical and hazard properties that are typical for organic acids, such as potential for skin or eye irritation upon direct contact. Comprehensive toxicological studies specific to this compound’s use in food may not be widely available in primary regulator databases, which can limit the availability of public safety data. Flavoring agents are used in minute amounts in formulations, and safety assessments focus on exposure estimates that are orders of magnitude lower than levels associated with adverse effects in laboratory studies. Decisions regarding use in food consider these factors and aim to ensure that contributions to consumer diets remain well within conservative safety margins defined by expert bodies.

Regulatory Status Worldwide

The regulatory status of flavoring substances like 5-decenoic acid varies by jurisdiction and is determined by food safety authorities. In the United States, flavor ingredients may be included in the Substances Added to Food inventory managed by the Food and Drug Administration, which reflects substances that could be directly added to food. The presence of a substance in such inventories does not automatically confirm formal approval under specific regulations but indicates recognized use in flavor systems. Internationally, expert bodies such as the Flavor and Extract Manufacturers Association (FEMA) maintain libraries of flavor ingredients that have been evaluated by technical panels for safety in flavor use. These evaluations are independent of direct regulatory approval but inform practices within the flavor industry. Regulatory frameworks also involve evaluation by scientific committees like the Joint FAO/WHO Expert Committee on Food Additives (JECFA), which assesses food additives and flavoring agents for safety. For many compounds, including specialized organic acids, specific numerical safety thresholds such as acceptable daily intake may not be established publicly without formal evaluation and publication of relevant data. As a result, regulatory status worldwide often reflects a combination of inventory listings, industry evaluations, and compliance with general food safety requirements rather than discrete additive regulations.

Taste And Functional Properties

The sensory characteristics of 5-decenoic acid are informed by its molecular structure, which includes an unsaturated bond and a moderately long carbon chain. Organic acids with these features often exhibit complex aromatic notes that can include buttery or fatty nuances, contributing subtle richness when used at appropriate concentrations in flavor formulations. In terms of functional behavior, 5-decenoic acid is more volatile than long-chain saturated fatty acids, which positions it for contributions to aroma perception in headspace evaluations. It is sparingly soluble in water but more soluble in organic solvents, consistent with its hydrophobic carbon chain. These properties influence how it is incorporated into flavor blends and how delivery systems are designed to optimize its sensory impact. When formulating flavors, professionals consider stability factors such as heat and pH. Organic acids may undergo changes in reactivity under different processing conditions, and the presence of unsaturation may affect oxidation pathways. As a result, formulation strategies include protective measures to preserve desired sensory qualities, including appropriate packaging, antioxidants, and controlled processing environments to maintain the integrity of sensitive flavor constituents.

Acceptable Daily Intake Explained

An acceptable daily intake (ADI) is a regulatory science concept that represents an estimate of the amount of a substance that can be ingested daily over a lifetime without appreciable health risk. ADIs are typically expressed on a body weight basis and are derived from toxicological studies using conservative uncertainty factors to protect sensitive populations. For many flavoring substances, including 5-decenoic acid, formal ADIs may not be publicly established in major regulator databases if detailed evaluations have not been published. This does not necessarily indicate a safety concern, but rather reflects the state of publicly accessible data. When ADIs are established, they guide risk managers and industry professionals in aligning use levels with safety benchmarks. Consumers need not interpret absence of a published ADI as an indication of hazard; many flavoring agents are used at levels far below thresholds of toxicological significance. Regulatory frameworks account for this by evaluating typical use exposures and ensuring that individual components of flavor systems are compatible with overall food safety requirements.

Comparison With Similar Additives

Comparing 5-decenoic acid with similar flavor-related additives highlights differences in structure and sensory roles among fatty acids and derivatives. For example, short-chain fatty acids like acetic acid have sharp, vinegar-like odors and are used in flavor contexts to provide acidic or tangy notes. In contrast, medium-chain acids such as 5-decenoic acid often contribute more nuanced aromatic characteristics. Other unsaturated fatty acids, such as 4-decenoic acid or mixtures of positional isomers, may be evaluated for distinct odor profiles and functional properties. Flavor chemists select from this spectrum of compounds to tailor sensory outcomes, balancing volatility, odor threshold, and compatibility with target food matrices. Despite differences in structure, the overarching principle in using these additives is to achieve desired sensory effects while adhering to safety and regulatory expectations.

Common Food Applications Narrative

5-Decenoic acid finds application as a component of flavor systems that contribute nuanced sensory attributes to a variety of food and beverage products. In flavor science, professionals craft blends that enhance or mimic natural flavors by combining multiple ingredients, each selected for its unique aromatic or taste qualities. Organic acids with defined carbon chain lengths and specific functional groups are among these components. When used in consumer products, 5-decenoic acid may appear in categories where subtle buttery, creamy, or savory notes are desirable. These categories can include baked goods, dairy and dairy-alternative products, condiments, sauces, and snack foods, where layered flavor profiles improve overall sensory experiences. Its contributions are technical and measured, leveraged by formulators working within established safety and regulatory frameworks. The use of flavor enhancers and flavoring agents such as 5-decenoic acid highlights the interplay between natural sensory cues and engineered solutions in modern food technology. These ingredients help manufacturers achieve consistent flavors that resonate with consumer expectations across large-scale production runs, while supporting the textural and aromatic complexity that defines many popular food categories.

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Safety & Regulations

FDA

  • Notes: Specific FDA regulatory approval or regulation citation not identified; presence in inventories does not confirm formal approval.

EFSA

  • Notes: No specific EFSA approval or E number identified in available sources.

JECFA

  • Notes: No specific JECFA ADI or year information identified in available sources.

Sources

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