BOIS DE ROSE, OIL (ANIBA ROSAEODORA DUCKE)

CAS: 8015-77-8 FLAVORING AGENT OR ADJUVANT

Bois de Rose oil (Aniba rosaeodora Ducke) is an essential oil derived from the wood of the tropical rosewood tree and used as a flavoring agent in food applications under natural extractives provisions.

What It Is

Bois de Rose oil (Aniba rosaeodora Ducke) is a complex natural essential oil extracted from the wood of the rosewood tree, Aniba rosaeodora, belonging to the Lauraceae family. This substance carries a distinctive floral and woody aroma and is used primarily as a natural flavoring agent or adjuvant in food formulations. It is identified by the unique CAS number 8015-77-8 and appears on regulatory lists for natural flavoring substances that are recognized as Generally Recognized As Safe (GRAS) when used in line with good manufacturing practices. As an essential oil, Bois de Rose oil consists of many naturally occurring components, with the monoterpenoid linalool often comprising a large portion of the volatile profile; however, the complete chemical composition can vary with geographic origin and processing methods. The term "essential oil" here conveys that this ingredient is a concentrated, aromatic extract containing volatile compounds derived directly from plant material. Bois de Rose oil has a long history of traditional use in flavor and fragrance industries, where it is valued for its nuanced sensory characteristics. Although the term "flavoring agent" may imply a simple chemical, Bois de Rose oil is a complex mixture of naturally occurring substances, and its safety evaluation and regulatory status are based on this natural extract profile. This distinction is important when considering how regulatory bodies categorize and assess such materials. Because it is listed among essential oils and natural extractives permitted as GRAS flavoring substances under U.S. federal regulations, developers and food scientists consider it a natural extractive that imparts both aroma and nuanced taste attributes when incorporated at levels suitable for the intended food application. In practical food science contexts, Bois de Rose oil is not used for nutritional contributions but rather for sensory enhancement, often in conjunction with other flavoring agents. It is part of a broad class of plant-derived essential oils that are generally accepted under regulatory frameworks when used according to established guidelines and good manufacturing practices.

How It Is Made

The production of Bois de Rose oil begins with the selection and preparation of the wood from Aniba rosaeodora Ducke trees, traditionally sourced from tropical regions of South America. The wood is chipped or broken down to increase surface area, followed by steam distillation to extract the volatile organic compounds that constitute the essential oil fraction. Steam distillation is a process in which steam passes through the wood material, carrying volatile components into a condenser where these vapors are cooled and collected as a mixture of oil and water. The essential oil separates from the water phase due to differences in density and is subsequently collected for refinement. After initial distillation, the crude essential oil may be further processed to remove certain constituents such as terpenes or other high‑volatility compounds depending on the desired sensory profile and technical specification. For example, terpeneless variants may be produced to reduce volatile terpene content and enhance specific aroma characteristics associated with floral or woody notes. Post‑distillation refinement also includes filtration and, where permitted, addition of food‑grade antioxidants to maintain stability and reduce oxidative changes during storage. The quality and sensory characteristics of Bois de Rose oil can vary with tree variety, geographic region of harvest, climate, and specifics of the distillation process. These variables influence both the aromatic profile and the chemical composition. Because the process yields a natural mixture of compounds rather than a single constituent, food grade specifications emphasize consistency of sensory attributes and compliance with regulatory guidelines that address purity and appropriate handling. The high content of compounds such as linalool, commonly found in Bois de Rose oil, reflects the typical output of steam distillation from this botanical source.

Why It Is Used In Food

Bois de Rose oil is utilized in food formulations for its distinctive sensory properties that contribute floral, sweet woody, and complex aromatic notes to flavor profiles. As a natural extractive, it serves as a flavoring agent or adjuvant, meaning it can enhance or modify the taste and aromatic perception of food products without imparting significant nutritional value. Its role in food science is centered on improving the overall sensory experience, particularly in formulations where a nuanced or botanical component is desired. Food scientists and formulators often select natural essential oils like Bois de Rose oil to achieve specific flavor profiles that cannot be replicated easily by synthetic single‑compound flavor agents. In product categories such as beverages, confectionery, baked goods, and savory applications, Bois de Rose oil may be used in combination with other natural flavoring substances to provide complexity and depth to the final flavor. Its use aligns with consumer interest in natural ingredients and ‘‘from plant’’ flavor cues, which can be especially relevant in premium or artisanal product segments. In regulatory contexts, ingredients that fall under essential oils and natural extractives are typically permitted when used within good manufacturing practices as defined by food safety authorities. Bois de Rose oil’s listing among essential oils recognized under 21 CFR 182.20 illustrates its acceptance as a naturally derived flavoring agent. This means that, when properly sourced and applied at levels appropriate for the intended sensory effect, it is viewed as a functional flavoring component that contributes desirable aromatic complexity to foods without raising evident safety concerns under its conditions of use.

Adi Example Calculation

Because Bois de Rose oil is a complex natural extractive rather than a single chemical entity with a defined numeric acceptable daily intake (ADI), specific calculation examples using numeric ADI values are not applicable. In regulatory practice for essential oils listed under U.S. food additive provisions such as 21 CFR 182.20, safe usage is guided by good manufacturing practices rather than a defined mg per kg ADI value. This means that formulators determine the lowest quantity needed to achieve the desired sensory effect in the final food product and use that level in production. For illustrative context, if a hypothetical single compound had a numeric ADI established by a regulatory authority, one might calculate daily exposure for an individual by multiplying the ADI (mg per kg body weight per day) by the body weight (kg) of a consumer. However, for Bois de Rose oil, regulatory frameworks evaluate overall historical use and context of consumption rather than apply a specific numeric ADI. This underscores the distinction between regulatory treatment of complex natural flavor mixtures and that of single defined chemical additives.

Safety And Health Research

Regulatory and safety evaluations of Bois de Rose oil focus on its identification as a natural extractive used as a flavoring agent rather than asserting specific health effects. In U.S. regulatory practice, the inclusion of Bois de Rose oil in the list of essential oils and natural extractives under 21 CFR 182.20 is supported by expert assessments that consider historical use and structural similarity to other natural flavoring substances recognized as safe for their intended use. External industry safety assessments such as those conducted by organizations like FEMA contribute to this body of evidence by examining typical usage levels, chemical composition, and toxicological considerations relevant to flavoring applications. Because essential oils are complex mixtures, comprehensive toxicity data for each specific constituent and the mixture as a whole may not be available in the same way as for single, well‑defined chemicals. Instead, safety assessments typically rely on expert evaluation of known toxicological information for constituent classes, historical consumption data, and structural characteristics. The outcome of such evaluations is reflected in regulatory acceptance of the ingredient category for intended use rather than establishment of numeric toxicological thresholds. In the broader scientific literature, studies on similar classes of natural flavoring ingredients and their constituents provide context for how safety is assessed. While isolated laboratory studies may explore specific endpoints for individual constituents such as linalool, these are interpreted within the larger body of evidence informing regulatory decisions. Because regulatory listings of natural extractives do not establish specific numerical acceptable daily intake (ADI) values for these complex mixtures, conservative application of good manufacturing practices ensures that food use levels remain appropriate for safe exposure.

Regulatory Status Worldwide

In the United States, Bois de Rose oil (Aniba rosaeodora Ducke) appears on the list of essential oils, oleoresins, and natural extractives that are generally recognized as safe (GRAS) for their intended use as flavoring agents under Title 21, Section 182.20 of the Code of Federal Regulations (CFR). This listing indicates that Bois de Rose oil is permitted for use as a natural flavoring ingredient when manufactured and used in accordance with good manufacturing practices, as recognized by FDA regulations that govern natural extractives. The listing of ‘‘Bois de rose’’ with botanical designation Aniba rosaeodora Ducke in Section 182.20 supports its regulatory acceptance within the scope of essential oils and natural extractives recognized as safe for food use in the U.S. In addition, the Flavor and Extract Manufacturers Association (FEMA) assigns a reference number to Bois de Rose oil (FEMA 2156) and includes it in its Flavor Library of GRAS flavoring substances. The FEMA GRAS program involves expert panel evaluation of natural flavoring substances to support their safety under intended use conditions, and Bois de Rose oil’s inclusion reflects such evaluation for use levels appropriate for flavoring applications. Internationally, specific regulatory lists and classifications vary by jurisdiction. In many countries, natural essential oils used as flavoring agents are regulated within frameworks that recognize ‘‘natural extracts’’ and ‘‘essential oils’’ permitting their use when consistent with local food standards and good manufacturing practices. Because Bois de Rose oil is a complex natural mixture rather than a single defined chemical, regulatory frameworks outside the U.S. may address it as part of broader categories of permitted natural flavorings. Absence of specific numeric acceptable daily intake values in many international standards reflects the typical approach to essential oils, which are assessed for safety as complex mixtures rather than defined single compounds.

Taste And Functional Properties

Bois de Rose oil exhibits a complex sensory profile that is characterized by floral and sweet woody notes, which reflect the contributions of naturally occurring volatile components such as linalool and other monoterpenoids. These sensory attributes make it suitable for applications where a refined aromatic enhancement is desired, particularly in conjunction with other flavor elements. The perception of Bois de Rose oil in food may include subtle woody, floral, and light camphoraceous nuances, which distinguish it from more singularly aromatic agents. From a functional perspective in formulation, Bois de Rose oil is typically soluble in lipid‑rich phases and alcohol‑based carriers, facilitating its integration into diverse product types ranging from beverages to confectionery and bakery. Its volatility and interaction with other flavor compounds require careful consideration: highly volatile components may dissipate during heat processing or prolonged storage, while others contribute substantivity to the flavor profile. The practical use levels in foods are generally low and guided by organoleptic testing and regulatory practice, ensuring that the oil’s distinctive aroma complements rather than overwhelms the overall product flavor. Formulators also consider physicochemical properties such as relative solubility, oxidation susceptibility, and stability under different processing conditions. Because essential oils can be sensitive to oxidation, appropriate handling, and incorporation techniques are important to preserve the targeted flavor attributes. Although Bois de Rose oil does not contribute significant functional properties such as emulsification or preservation on its own, its role in providing complexity and sensory depth aligns with broader flavor system objectives in food product development.

Acceptable Daily Intake Explained

The concept of Acceptable Daily Intake (ADI) refers to an estimate of the amount of a substance that can be consumed daily over a lifetime without appreciable risk, based on toxicological data and safety factors. For complex natural extractives like Bois de Rose oil, regulatory frameworks often do not establish specific numeric ADI values because these substances are mixtures with variable composition and have a long history of safe use at low levels in foods. Instead, regulatory recognition under provisions such as U.S. 21 CFR 182.20 implies that the ingredient is acceptable for use as a flavoring agent when applied in accordance with good manufacturing practices, which include using the lowest level necessary to achieve the desired sensory effect. For lay readers, it is important to understand that ADIs are typically derived for single chemicals based on toxicological studies; natural essential oils with many constituents are often evaluated by expert panels or included in broader regulatory categories rather than assigned numeric ADIs. This does not mean they are unsafe, but rather that their complex nature and historical consumption patterns inform regulatory acceptance. The lack of a specific numeric ADI for Bois de Rose oil reflects this assessment paradigm rather than a gap in safety oversight. Food manufacturers and regulatory bodies rely on good manufacturing practices and sensory evaluation to ensure usage levels are appropriate and consistent with safety expectations.

Comparison With Similar Additives

Bois de Rose oil can be compared with other essential oil‑based flavoring agents such as orange oil and peppermint oil, which are likewise complex mixtures of volatile compounds derived from plant sources and recognized as natural extractives for flavor use. All these substances share the characteristic of being multicomponent mixtures with dominant constituents—such as limonene in orange oil and menthol in peppermint oil—contributing to their sensory profiles. While Bois de Rose oil is characterized by floral, woody, and sweet notes, orange oil typically provides citrus top notes and peppermint oil delivers a minty cooling sensation. These differences illustrate how essential oil flavorings are selected based on their unique sensory attributes rather than functional equivalence. Another comparison can be drawn with coriander oil, another natural essential oil used for flavoring, which exhibits a spicy, citrusy profile. Like Bois de Rose oil, coriander oil is permitted under natural extractive regulations and is incorporated at low levels to impart characteristic flavor contributions. These examples underscore a broader class of essential oil flavorings that, though varying in sensory impact, share similar regulatory pathways and considerations for safe usage under good manufacturing practices.

Common Food Applications Narrative

In food product development, Bois de Rose oil is most commonly encountered as a natural flavoring component that enriches the aromatic and taste dimensions of a range of consumer products. Its use tends to be concentrated in categories where nuanced botanical notes enhance the sensory profile, such as specialty beverages, confections, and premium baked goods. In these applications, the oil’s floral and woody characteristics complement other natural flavor components to produce distinctive organoleptic experiences that align with consumer expectations for complex natural flavors. For example, in beverage applications, Bois de Rose oil may be incorporated at low levels to provide a subtle botanical note in herbal or fruit‑based drinks, where it harmonizes with other natural extracts. In confectionery, its floral nuances can support layered flavor profiles in chocolates, fondants, or sugar confections that demand a refined sensory signature. Similarly, in bakery products and confections, small quantities of Bois de Rose oil can heighten aromatic complexity without dominating the core taste attributes of the base ingredients. While not a primary flavoring ingredient in mainstream mass market products, Bois de Rose oil is particularly valuable in niche or artisanal foods where natural flavor framing and sensory distinction are key. Its use requires expertise in formulation to balance its aromatic contribution with other components, ensuring an enjoyable eating experience consistent with product positioning. Regulatory acknowledgment of its status as a natural extractive suitable for food flavoring under applicable provisions supports its inclusion in these contexts, provided that good manufacturing practices are observed and sensory outcomes are validated through testing.

Safety & Regulations

FDA

  • Approved: True
  • Regulation: 21 CFR 182.20

EFSA

  • Notes: EFSA specific regulatory evaluation not found

JECFA

  • Notes: No JECFA numeric ADI or specific evaluation found

Sources

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