ALPHA-AMYLCINNAMYL ACETATE

CAS: 7493-78-9 FLAVOR ENHANCER, FLAVORING AGENT OR ADJUVANT

Alpha-Amylcinnamyl Acetate is a synthetic flavoring agent used to impart floral and fruity notes in foods. It is listed in FDA 21 CFR 172.515 for flavoring substances and has been evaluated by JECFA as having no safety concern at current intake levels.

What It Is

Alpha-Amylcinnamyl Acetate is a synthetic organic compound used in food formulation primarily as a flavor enhancer and flavoring agent. Chemically, it belongs to a class of cinnamyl esters characterized by an amyl side chain attached to a benzylidene acetate backbone. The compound is identified by the Chemical Abstracts Service (CAS) number 7493-78-9, which serves as a unique numerical identifier for this specific chemical substance. Alpha-Amylcinnamyl Acetate is typically encountered as a colorless to pale yellow oily liquid with characteristic aromatic and fruity sensory notes when used at very low concentrations in food formulations. In regulatory contexts, this additive is recognized within the U.S. Code of Federal Regulations under section 21 CFR 172.515, which governs synthetic flavoring substances and adjuvants permitted in food. Its inclusion in this regulation reflects a long-standing evaluation process where scientific evidence supports its safe use in food flavor applications when used in accordance with good manufacturing practice. It is important to distinguish this specific compound from other related cinnamyl esters that may have different regulatory statuses or sensory profiles because small structural changes can alter both flavor characteristics and safety evaluations. Flavor chemists and food scientists describe Alpha-Amylcinnamyl Acetate as having floral, jasmine-like, and fruity nuances that contribute complexity to flavor blends. Because of its sensory properties, it is rarely used alone but instead as part of multi-component flavor systems. Its classification as a flavor enhancer and flavoring agent underlines its sensory role rather than nutritional, preservative, or functional roles such as emulsification or texturization.

How It Is Made

The production of Alpha-Amylcinnamyl Acetate typically involves classical esterification chemistry where an alcohol containing the amyl-cinnamyl moiety reacts with acetic acid under controlled conditions. In general terms, esterification is a condensation reaction between a carboxylic acid (in this case acetic acid) and a suitable alcohol (an alpha-amylcinnamyl alcohol), often catalyzed by an acid catalyst and performed with removal of water to drive the reaction toward ester formation. This type of synthetic pathway is common for many flavor esters used in the food industry, and it can be adapted to use azeotropic distillation or other methods to improve yield and purity. In commercial practice, manufacturers aiming for food-grade quality will use catalysts and reaction conditions that minimize side reactions and impurities. They will also implement downstream purification steps such as washing, distillation, and filtration to remove residual reagents and byproducts. Quality control specifications typically require that the final ester meets stringent purity criteria, often expressed as a percentage by weight of the desired compound, and that impurities remain below defined thresholds. Regulatory specifications, when available from authoritative bodies, may also lay out analytical methods for verifying identity and purity in finished additive lots. Because the compound is used at low concentrations in finished foods, the focus in production is on consistency of sensory character and absence of off-flavors. The raw materials selected for synthesis, including the starting alcohol, are chosen for their stability and quality. Manufacturers producing food-grade Alpha-Amylcinnamyl Acetate must comply with relevant chemical safety and good manufacturing practice guidelines, including appropriate documentation and analytical testing to ensure batch-to-batch consistency. The synthesis approach reflects established organic chemistry principles adapted for flavor industry standards rather than any unique or proprietary techniques.

Why It Is Used In Food

Alpha-Amylcinnamyl Acetate is used in food primarily for its ability to impart desirable sensory characteristics, especially floral and fruity notes, that can enhance or modify the flavor profile of a product. Flavor chemists select this compound because of its specific aromatic contributions that are difficult to achieve with other ingredients alone. In complex flavor systems, it can add depth, roundness, or nuanced top notes that complement base and middle flavor components, thereby enriching the overall sensory experience. The logic behind its use lies in consumer perception: many foods and beverages are judged not only on basic taste attributes such as sweet, sour, salty, bitter, and umami, but also on nuanced aromatic qualities that contribute to perceived quality and enjoyment. Floral, jasmine-like, or fruity nuances can elevate products such as confections, dairy-based desserts, beverage flavors, baked goods, or confectionery inclusions by creating layered sensory impressions. For example, in a fruit-flavored soda, a small amount of Alpha-Amylcinnamyl Acetate may help bridge otherwise sharp or one-dimensional fruit notes, rendering a more balanced and appealing aroma. Because it is potent, the compound is used at very low levels, typically measured in parts per million or less in the final food product. This ensures that it contributes its characteristic aroma without overwhelming other flavor components or creating an artificial impression. Its classification as a flavor enhancer and flavoring agent means that its technological function is sensory-driven rather than nutritional; it does not alter texture, preserve food, or provide nutritional value. Instead, it enables food developers to achieve targeted flavor profiles that align with consumer expectations and product positioning.

Adi Example Calculation

To illustrate how ADI concepts apply in practice, consider a hypothetical scenario often used in safety assessments for flavoring agents. Suppose a regulatory body has determined that daily intake of a flavoring compound by an average adult is 0.001 milligrams per kilogram of body weight per day based on consumption patterns and reported use levels in foods. If a hypothetical numeric ADI were established at 1 milligram per kilogram body weight per day for a substance with no safety concern at typical exposure levels, a 70-kilogram adult’s intake would be 0.07 milligrams per day compared to an ADI of 70 milligrams per day. The important point in such calculations is the relative margin between typical intake and the ADI, which provides context for safety evaluations. In this example, the estimated intake is 1,000 times lower than the hypothetical ADI, reflecting a large margin of exposure. For Alpha-Amylcinnamyl Acetate, regulators have not published a specific numeric ADI in the publicly accessible summaries, but available evaluations indicate that current use levels result in exposures that do not raise safety concerns. This type of illustrative calculation underscores how toxicologists and risk assessors compare exposure estimates to reference values in determining whether regulation and use levels remain protective of public health.

Safety And Health Research

Safety assessments for Alpha-Amylcinnamyl Acetate focus on toxicological data and exposure scenarios relevant to its use as a food flavor ingredient. Regulatory bodies and expert committees, such as the FDA and JECFA, review available toxicology studies, often including subchronic toxicity, genotoxicity, and other endpoints that inform risk evaluations. The JECFA evaluation noted that at typical levels of intake associated with food flavor usage, there is no safety concern, which reflects an analysis of exposure relative to toxicological thresholds derived from experimental data. Because flavoring agents are used at very low levels in foods, actual consumer exposure tends to be much lower than doses that produce adverse effects in animal studies. The lack of a specific numeric ADI in the JECFA evaluation summary indicates that routine intake through food is not expected to approach levels associated with toxicological concern based on current evidence. Assessments consider not only inherent toxicity but also patterns of use across different food categories and populations. Independent safety assessments, such as those conducted by industry expert panels, also contribute to the body of evidence. These evaluations often compile data on chemical identity, metabolic pathways, and available animal studies to support conclusions about safety in the context of food use. Importantly, the evidence base for many flavoring substances predates modern systematic toxicology approaches, so regulators continue to monitor new research and may re-evaluate compounds as additional data emerge. The overall weight of evidence to date supports the safety of Alpha-Amylcinnamyl Acetate when used in accordance with regulatory provisions for flavoring agents.

Regulatory Status Worldwide

The regulatory status of Alpha-Amylcinnamyl Acetate reflects evaluations by major food safety authorities. In the United States, this compound is listed in the Code of Federal Regulations at 21 CFR 172.515 under synthetic flavoring substances and adjuvants, where its use in food is permitted provided it is used in the minimum quantity required to produce its intended flavor effect and in accordance with good manufacturing practice. This regulatory listing is a formal authorization that allows its direct addition to food as a flavoring agent under defined conditions. The CFR provision emphasizes appropriate use levels and quality practices to ensure safety in food products. Internationally, the Joint FAO/WHO Expert Committee on Food Additives (JECFA) evaluated Alpha-Amylcinnamyl Acetate as part of a group of structurally related flavoring agents. The JECFA evaluation, referenced by its assigned number 677, concluded that there is no safety concern at current levels of intake when used as a flavoring agent, supporting its continued use in food applications. However, a specific numeric acceptable daily intake (ADI) was not established in the publicly available summary, and therefore quantitative limits are not provided in the summary data beyond indicating that current exposure levels are safe. Other jurisdictions may recognize this compound as a permitted flavoring substance either through inclusion in national flavor additive lists or general flavoring allowances, but explicit regulatory designations vary by region. In some areas, specific flavoring inventories or approvals may list it by name or through structural group classifications handled by local food safety agencies. These regulatory frameworks aim to ensure that flavoring agents, including aroma esters like Alpha-Amylcinnamyl Acetate, do not pose safety risks when used appropriately in food production.

Taste And Functional Properties

Alpha-Amylcinnamyl Acetate is valued in flavor design for its distinctive sensory attributes and its interaction with other flavor ingredients. Sensory analysts describe its odor as having floral, jasmine-like, and fruity characteristics, which can bridge and enhance other aromatic components in a complex flavor blend. These nuanced sensory qualities make it suitable for applications where a floral or nuanced fruit note is desirable, such as beverage flavorings, candy formulations, bakery products, or dairy desserts. In terms of functional properties, Alpha-Amylcinnamyl Acetate is typically used at very low concentrations because of its potency. It is generally soluble in ethanol or other organic solvents used in flavor formulations, and when incorporated into food systems, it volatilizes at serving temperatures to deliver aroma to the consumer’s nose. Volatility and solubility influence how a flavor compound behaves in different food matrices: compounds that volatilize too readily may dissipate during processing, while those with insufficient volatility may fail to deliver odor impact at consumption. Alpha-Amylcinnamyl Acetate’s profile allows it to contribute both top and middle notes without an excessively strong initial burst that could overwhelm other flavors. Heat stability is another relevant consideration; while many flavor esters can withstand moderate processing temperatures, extreme heat may lead to breakdown or loss of sensory activity. As a result, food formulators account for processing conditions when choosing how and when to incorporate this ester in a product. In acidic environments, its stability is generally adequate for use in beverages and some confections, but formulators may choose to adjust order of addition or protect the compound in encapsulated forms if processing exposes it to conditions that could degrade its sensory contributions. These functional considerations ensure that the compound delivers its intended sensory impact in the final food product.

Acceptable Daily Intake Explained

The concept of Acceptable Daily Intake (ADI) is central to how food safety authorities evaluate flavoring agents and additives. An ADI represents an estimate of the amount of a substance that can be ingested daily over a lifetime without appreciable health risk, expressed relative to body weight. ADIs are typically derived from toxicological studies in animals, where researchers identify a no observed adverse effect level (NOAEL) and apply conservative safety factors to account for uncertainties and differences between species. For Alpha-Amylcinnamyl Acetate, regulatory summaries from JECFA indicate that at current exposure levels from food use, there is no safety concern, suggesting that intake through diet is well below any levels that might raise health questions. JECFA’s conclusion about lack of safety concern implicitly incorporates considerations of typical consumption patterns and toxicological data without establishing a specific numeric ADI. This approach is common for many flavoring agents that have substantial margins of exposure between estimated intake and toxicological thresholds. It is important to clarify that ADIs are not recommended intake levels consumers should aim for, nor do they imply a threshold above which adverse effects will definitely occur. Instead, ADIs serve as benchmarks for regulators and industry to ensure that approved uses of additives do not result in exposures that approach levels associated with risk in controlled studies. When a numeric ADI is not explicitly established, the regulatory position generally reflects that expected intakes are safely below any levels of concern based on available evidence.

Comparison With Similar Additives

Alpha-Amylcinnamyl Acetate is one of many ester-type flavoring agents used in the food industry. Comparisons with similar compounds help contextualize its sensory and functional profile. For example, Ethyl Butyrate is another ester commonly used for fruity notes in beverages and confectionery; it tends to provide bright, citrus-like aromas at low concentrations and is typically highly volatile. In contrast, Alpha-Amylcinnamyl Acetate offers more floral and jasmine-like nuances and has different volatility characteristics that influence how it behaves in complex flavor systems. Another related compound is Isoamyl Acetate, known for its banana-like aroma, widely used in fruit-flavored products and confectionery. Like Alpha-Amylcinnamyl Acetate, Isoamyl Acetate is used at low levels and contributes characteristic sensory cues that complement other flavor ingredients. The sensory profile of Isoamyl Acetate is more singularly fruity, whereas Alpha-Amylcinnamyl Acetate adds layered floral-fruity impressions suitable for products where more complex aromatic notes are desired. Comparing these compounds highlights the strategic choices flavorists make when constructing formulations. Some esters emphasize pure fruit impressions, while others provide floral or balsamic qualities that support nuanced flavor profiles. The selection depends on the target sensory identity of the final product and how individual compounds interact in multi-component blends.

Common Food Applications Narrative

In everyday food products, Alpha-Amylcinnamyl Acetate is used as part of carefully designed flavor systems to enhance perception of aromatic complexity. It is not a nutrient or preservative, but rather a tool flavorists use to craft sensory experiences that resonate with consumer expectations. In beverage formulations, such as fruit-flavored soft drinks or ready-to-drink teas, a hint of floral or jasmine-like aroma can help round fruit top notes, creating a more pleasing overall profile. In confections like hard candies, chews, or sugar-based sweets, adding this compound in trace amounts can deepen fruit or tropical impressions. Bakery products also benefit from such aroma enhancers. For example, in sweet bread rolls or pastries where vanilla and fruit notes predominate, the addition of a small amount of Alpha-Amylcinnamyl Acetate can lift the aromatic profile and create an impression of freshness and complexity. Dairy-based desserts, including ice cream and frozen yogurts, often enlist floral or fruity esters to complement core flavors like berry, citrus, or melon. In these applications, the compound works alongside other flavor components to ensure a balanced sensory experience rather than standing out on its own. Flavor systems are built holistically, meaning that formulators select components based on how they interact with one another and with the food matrix. Alpha-Amylcinnamyl Acetate’s role is to provide specific aromatic cues that evoke floral or fruit impressions, helping products achieve a sensory identity that meets consumer preferences. Its use is most effective when integrated with other flavor chemicals that contribute body, sweetness perception enhancers, or modifiers that smooth out harsh edges, resulting in cohesive flavor experiences across a range of food categories.

Safety & Regulations

FDA

  • Approved: True
  • Regulation: 21 CFR 172.515

EFSA

  • Notes: EFSA regulatory evaluation for this specific compound could not be verified.

JECFA

  • Notes: JECFA concluded no safety concern at current intake levels but did not publish a numeric ADI.

Sources

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