BUCKBEAN LEAVES, EXTRACT (MENYANTHES TRIFOLIATA L.)

CAS: 977038-52-0 FLAVORING AGENT OR ADJUVANT

Buckbean Leaves, Extract is a defined plant extract ingredient identified by CAS 977038-52-0 that is used functionally in foods as a flavoring agent or adjuvant and appears in US food additive inventories.

What It Is

Buckbean Leaves, Extract is a defined botanical extract derived from the leaves of Menyanthes trifoliata L., a perennial herbaceous plant commonly known as buckbean or bogbean. As an ingredient with CAS Number 977038-52-0, this extract is recognized in food regulatory inventories for use as a flavoring agent or adjuvant, meaning it contributes sensory properties or supports the functionality of other flavoring substances in food formulations. The extract is obtained from the dried leaves of the plant, capturing a complex mixture of plant-derived constituents, and may be known by other names such as buckbean leaf extract or Menyanthes trifoliata leaf extract in regulatory and formulation contexts. Buckbean is native to temperate wetland habitats and has a long history of traditional use as a botanical source, though its formal applications in food systems focus on sensory enhancement rather than nutrition or therapeutic effects. Buckbean Leaves, Extract is categorized technically as a flavoring agent or adjuvant due to its historical inclusion in flavor inventories and regulatory sections that list such substances approved for use under specified conditions. In regulatory references such as the United States Food and Drug Administration's food additive listings, the ingredient appears under 21 CFR 172.510, which describes certain flavoring substances and adjuvants that may be safely used in food, indicating that the ingredient has been subject to assessment for its appropriateness in these roles. Within food chemistry, flavoring agents are defined broadly to include compounds or extracts that impart or modify flavor, aroma, or taste perception when added to food products at levels reasonably required to achieve the intended effect. Buckbean Leaves, Extract fits within this category due to its origin as a plant extract traditionally noted for pronounced bitter and aromatic qualities, which can influence flavor profiles in formulated food products. The identity of BUCKBEAN LEAVES, EXTRACT is confirmed by its Chemical Abstracts Service (CAS) registry number 977038-52-0, which provides a unique identifier for regulatory communication and ingredient specification. Other names included in ingredient specifications help ensure clarity across different jurisdictions and databases, though variations in naming do not change the fundamental chemical and botanical source of the extract. Though the extract comprises a complex mixture rather than a single defined molecule, regulatory inventories treat it as a substance with an established identity and allowed technical usage under specified regulatory codes. In practice, manufacturers seeking to use this extract must reference the ingredient name and CAS when labeling, formulating, and submitting ingredient information for regulatory compliance.

How It Is Made

Buckbean Leaves, Extract is produced from the aerial parts of the Menyanthes trifoliata L. plant, specifically the leaves that are harvested post maturity and dried to preserve their phytochemical content. The production process begins with the selection and collection of plant material from cultivated or wild-sourced buckbean plants, ensuring that the raw botanical material meets defined quality standards for botanical extracts. Once harvested, the leaves are typically dried under controlled conditions to remove moisture content, which stabilizes the plant constituents and prevents degradation during storage and further processing. Following drying, the plant material is subjected to extraction using food-grade solvents such as ethanol, water, or solvent blends that facilitate the recovery of soluble phytochemicals and aromatic compounds. Extraction methods vary by producer and desired specification but commonly involve soaking or percolation techniques where the dried leaf material is immersed in the solvent under controlled temperature and time conditions to yield an extract enriched in organoleptic and aromatic compounds. The extract solution may then be concentrated by removing the solvent through evaporation or other separation technologies to achieve a defined extract ratio or concentration suitable for flavoring applications. Quality control steps including filtration, clarification, and standardized testing are applied to ensure that the final extract is consistent in appearance, odor, and compositional attributes. The resulting Buckbean Leaves, Extract is a complex mixture that reflects the botanical composition of the source leaves, often containing a variety of plant secondary metabolites such as flavonoids, bitter compounds, and other constituents naturally present in Menyanthes trifoliata. Because the extract represents a botanical complex rather than a single defined chemical entity, specifications for food use focus on identity, purity, and absence of contaminants rather than detailed chemical formulae. In food regulatory contexts, such extracts are considered acceptable when produced with food-grade solvents and manufacturing practices that control for residual solvents, contaminants, and unwanted impurities. Documentation of Good Manufacturing Practices (GMP) and compliance with relevant food additive specifications are integral to the production process. Manufacturers must also consider sourcing and traceability of the plant material, as variations in plant growing conditions, harvest times, and extraction methods can influence the sensory properties and chemical profiles of the extract. Standardization efforts may involve blending multiple batches to achieve a consistent flavor profile or working with suppliers to specify extraction parameters that yield reproducible results. In the absence of detailed regulatory monographs specific to Buckbean Leaves, Extract, industry standards and internal quality control systems play a prominent role in ensuring that the ingredient performs reliably in finished food applications. Additionally, certificates of analysis (COAs) and material safety data documentation help ingredient users assess compliance with safety and quality expectations for food-grade extracts.

Why It Is Used In Food

Buckbean Leaves, Extract is used in food primarily for its role as a flavoring agent or adjuvant, meaning that it contributes to the sensory experience of food products by adding, modifying, or enhancing taste and aroma characteristics. Flavoring agents are selected by food formulators to achieve desired sensory profiles that appeal to consumer preferences or to support specific product positioning. In this context, buckbean extract may be valued for its unique aromatic and bitter notes, which can provide complexity or balance when blended with other flavoring substances in formulations. The use of botanical extracts such as Buckbean Leaves, Extract in food is part of a broader trend in flavor formulation that leverages natural sources to create diverse and distinctive sensory profiles. Flavor complexity is an important attribute in many categories of food products, particularly those that aim to deliver layered taste experiences such as savory snacks, beverage blends, and specialty condiments. Botanical extracts can contribute nuanced notes that are difficult to achieve with single-component flavor chemicals, and buckbean’s characteristic flavor elements offer formulators an additional tool for achieving specific sensory outcomes. As a flavoring adjuvant, Buckbean Leaves, Extract may also serve supportive roles such as smoothing transitions between flavor notes, masking undesirable tastes from other ingredients, or enhancing the persistence of certain flavor characteristics. Adjuvants in flavor science are substances that by themselves may not be recognized as primary flavor contributors but influence how other flavors are perceived. In complex formulations where multiple flavoring agents are combined, adjuvants help achieve a cohesive, balanced profile by influencing volatility, taste perception thresholds, and interactions among flavor components. In this capacity, buckbean extract’s inherent sensory attributes and functional behavior in mixtures make it a useful component of flavor systems designed for sophisticated taste profiles. Food scientists and flavorists also consider the stability of flavoring ingredients in processing conditions when selecting components for inclusion. Although the specific stability profile of Buckbean Leaves, Extract can vary based on extraction and formulation, many botanical extracts maintain their functional contribution across a range of processing conditions typical for flavored foods. The inclusion of buckbean extract must be carefully calibrated to ensure that its contribution to overall taste remains within desirable limits, as botanical extracts can be potent and may overwhelm other flavor elements if used excessively. Regulatory allowances such as 21 CFR 172.510 provide frameworks under which such flavoring agents and adjuvants may be used at levels reasonably required to achieve intended effects, reinforcing that their application is technical and measurable rather than arbitrary.

Adi Example Calculation

As no specific numeric Acceptable Daily Intake (ADI) has been established for Buckbean Leaves, Extract, a hypothetical calculation illustrates how ADIs are typically used rather than providing a definitive recommendation for this ingredient. For illustration purposes only, consider a hypothetical ADI value of X mg per kilogram of body weight per day for a flavoring agent with sufficient toxicological data. If an adult weighs 70 kilograms and consumes food products containing the flavoring agent at daily exposure levels approaching the ADI, the calculation would proceed by multiplying the ADI by body weight. For example, if X were established at Y mg/kg/day in a regulatory evaluation, the maximum acceptable intake for a 70 kg adult would be Y multiplied by 70. This hypothetical example demonstrates how ADIs scale with body weight and how exposure estimates help contextualize safety margins. In the case of Buckbean Leaves, Extract, no such numeric ADI is available due to limited specific toxicological data. As a result, this example remains illustrative of the general methodology used in risk assessment without asserting an actual numeric value. Regulatory frameworks recommend that botanical flavoring agents be used at the minimum levels necessary to achieve sensory objectives, emphasizing that their function is technical and should not lead to excessive consumer exposure. Manufacturers and safety assessors apply this principle alongside analytical and sensory data to ensure ingredient usage remains consistent with established safety practices.

Safety And Health Research

The safety and health research landscape for Buckbean Leaves, Extract centers on evaluating its suitability as a food flavoring agent or adjuvant and ensuring that its use does not introduce safety concerns at the levels presented in food products. Botanical extracts, by virtue of their complex chemical composition, present challenges for safety assessment because they comprise multiple constituents rather than a single defined compound. Regulatory bodies and safety panels consider factors such as potential toxicity of individual components, historical usage data, and analytical evidence when determining the appropriateness of botanical extracts in food applications. While traditional uses of Menyanthes trifoliata leaves have been documented in herbal medicine contexts, contemporary food safety evaluations focus on the extract’s functional role and sensory contribution rather than therapeutic claims. Scientific literature includes studies on constituent classes within the plant, such as flavonoids and bitter compounds, which have been examined in various experimental settings, but these investigations do not directly translate to regulatory positions on food additive safety. In regulatory contexts, the emphasis is on exposure assessment, ensuring that the extract is used at levels that achieve the intended flavor effect while limiting consumer exposure to any potentially harmful constituents. Toxicological endpoints commonly examined for food ingredients include acute toxicity, genotoxicity, reproductive and developmental toxicity, and subchronic toxicity. For botanical extracts like buckbean, safety evaluation may leverage data from studies on similar plant extracts, component-level toxicology data, and established safety frameworks that consider margins of exposure. In the absence of extensive specific toxicological data for the extract itself, regulators and expert panels may apply precautionary principles and require that usage levels remain within bounds that minimize any theoretical risk. This use of established safety assessment methodologies reflects a risk-based approach that balances technological need with consumer protection. Importantly, contemporary regulatory evaluations do not endorse health claims for flavoring agents; rather, they assess whether the ingredient’s presence in food is safe under intended conditions of use. Scientific research into bioactive compounds present in plant extracts can inform broader understanding of biological activity, but such research is not used to substantiate health benefits in the context of food additive regulation. When new data emerge that bear on safety considerations, regulatory authorities may review and update guidance accordingly to maintain robust consumer protection frameworks. Consumer safety is further supported by requirements for ingredient labeling, which provide transparency about the presence of botanical extracts in food products. This allows individuals with specific sensitivities or dietary considerations to make informed choices. Overall, safety and health research for Buckbean Leaves, Extract aligns with regulatory paradigms that emphasize thorough evaluation of exposure, constituent toxicity, and adherence to usage levels that do not pose undue risk to consumers.

Regulatory Status Worldwide

The regulatory status of Buckbean Leaves, Extract reflects its recognition as a flavoring agent or adjuvant in specific jurisdictions and inventories. In the United States, the ingredient appears in the Food Additive Status listings maintained by the Food and Drug Administration, where it is associated with CFR section 172.510 under the category of flavoring agents and related substances permitted for use in food products, indicating that it may be used at levels that achieve the intended flavor effects in food formulations. This regulatory reference provides manufacturers with a clear framework for lawful inclusion of the extract in foods as a flavoring component, provided that usage conforms to good manufacturing practices and labeling requirements. In other regions, such as within the European Union, food additive regulation is structured differently, with specific E-numbers assigned to approved additives and defined categories for flavoring substances. Botanical extracts like Buckbean Leaves, Extract may be utilized under “flavoring” classifications when they meet the criteria established by the relevant food safety authorities. It is important for manufacturers operating in multiple markets to consult the applicable food additive lists and regulatory guidance in each jurisdiction to ensure compliance. Because regulatory structures vary internationally, some regions rely on broader definitions for natural flavoring substances that encompass plant extracts, while others require specific listings or approvals. International regulatory bodies such as the Joint FAO/WHO Expert Committee on Food Additives (JECFA) maintain comprehensive databases of evaluated food additives and flavoring agents, although not every botanical extract is individually assessed in these global compendia. The absence of a dedicated JECFA number or specification does not necessarily preclude the use of a botanical extract as a flavoring agent, but it does underscore the need for careful review of national and regional regulatory frameworks to confirm permissibility. Regulators in various countries may adopt guidance documents and safety evaluation principles established by international organizations to inform their own approval processes, emphasizing quality, purity, and safety considerations. In all cases, the use of Buckbean Leaves, Extract in food products must align with local regulatory requirements for ingredient listing, labeling, and safety assessment. Manufacturers often work with regulatory affairs specialists to interpret relevant food additive lists, ensure that extract compositions meet defined specifications, and confirm that marketed products adhere to applicable legal standards. This proactive approach supports transparent communication to regulators and consumers regarding the presence and function of botanical flavoring agents in food products.

Taste And Functional Properties

Buckbean Leaves, Extract presents distinctive sensory characteristics that arise from its botanical origin and the complex mixture of plant-derived compounds it contains. While specific sensory descriptors can vary by source and extraction method, extracts of Menyanthes trifoliata leaves are often described as having pronounced bitter and aromatic notes that can contribute depth and contrast in flavor blends. The bitterness inherent to buckbean extract stems from naturally occurring secondary metabolites present in the leaves, which may be leveraged by flavorists to balance sweetness or to provide a counterpoint to other dominant notes in a formulation. Functionally, the extract behaves as a source of complex taste-active constituents rather than as a single identifiable flavor chemical. This complexity allows it to interact with other flavor components in nuanced ways, influencing not only the primary taste perception but also the overall mouthfeel and aftertaste of a food product. In formulations where botanical character and layered sensory experiences are desired, buckbean extract’s sensory footprint can provide a distinctive contribution that enhances product differentiation. It is important for formulators to assess the extract’s functional behavior in the context of a complete flavor system, evaluating how its bitterness and aromatic elements work in harmony with other ingredients. The solubility of Buckbean Leaves, Extract in food matrices depends on the solvent system used for extraction and the nature of the final extract. Botanical extracts are often prepared in polar solvents such as ethanol or water mixtures, which can influence how they disperse in aqueous-based food products. Solubility and compatibility with food components such as fats, proteins, and carbohydrates affect how the extract’s sensory attributes are released during consumption. Flavorists must therefore account for these aspects when incorporating buckbean extract into products like beverages, sauces, or seasonings to ensure that the extract’s contribution is effective and consistent. Stability of the sensory properties under processing conditions is another functional consideration. Heat, pH changes, and mechanical shear during food manufacturing can alter the chemical profile of botanical extracts. Buckbean Leaves, Extract may experience some degree of change under such conditions, which requires careful formulation design to preserve the desired sensory effects. Sensory testing across production cycles helps ensure that the extract’s taste and functional properties are maintained in the final product. Additionally, interactions with packaging materials and storage conditions can influence the longevity of the extract’s sensory signature, prompting evaluators to conduct shelf-life testing to confirm sustained performance. In summary, the taste and functional properties of Buckbean Leaves, Extract are defined by its botanical complexity, offering bitter and aromatic elements that flavor professionals can use creatively in food formulations. Its behavior in different matrices, influenced by solubility and stability factors, underscores the importance of skillful formulation and sensory evaluation to harness the extract’s full potential as a flavoring agent or adjuvant.

Acceptable Daily Intake Explained

An Acceptable Daily Intake (ADI) is a concept used by regulatory bodies and scientific committees to define the amount of a substance that can be ingested daily over a lifetime without appreciable health risk. ADIs are typically expressed in terms of milligrams of substance per kilogram of body weight per day and are established based on comprehensive toxicological data, including animal studies and safety factors to account for uncertainties. For many botanical extracts used as flavoring agents, specific ADIs have not been established because their use levels in foods are very low and limited to technical functions rather than nutritional contribution. In such cases, regulators rely on evidence of safe use at customary levels and expert judgment to allow usage without defining a numerical ADI. Because Buckbean Leaves, Extract is used as a flavoring agent or adjuvant at levels that achieve sensory effects, and because comprehensive toxicological data specific to this extract are limited, no specific numeric ADI can be confidently stated. Instead, the overarching regulatory philosophy is that the ingredient’s use should be restricted to the minimal levels required to achieve the desired flavor effect, consistent with good manufacturing practices and relevant regulatory allowances. This precautionary approach reflects the understanding that botanical extracts encompass multiple constituents and that safety evaluations focus on exposure minimization and monitoring for adverse effects. Acceptable Daily Intakes serve as risk management tools that help regulatory authorities determine safe usage limits for food additives, including flavoring agents, when sufficient toxicological data are available. In the absence of specific ADI data for buckbean extract, the emphasis remains on exposure assessment, good manufacturing practices, and adherence to regulatory listings that permit usage under defined conditions. Manufacturers are expected to document and justify usage levels in formulations, ensuring that consumer exposure remains well within boundaries considered conservative and safe based on available evidence and analogous safety frameworks for other flavoring agents.

Comparison With Similar Additives

Buckbean Leaves, Extract can be compared with other botanical flavoring agents that serve similar functional roles in food formulations. For instance, extracts derived from herbs such as rosemary or peppermint are also used as flavoring agents, imparting distinct sensory characteristics and contributing to complex flavor profiles. Like buckbean extract, these botanical extracts contain multiple constituents that contribute to taste and aroma, and their inclusion in food formulations must be carefully calibrated to achieve the intended sensory effect without overpowering other components. While rosemary extract may deliver herbal, slightly pine-like notes and peppermint extract contributes a cooling mint character, buckbean extract offers unique bitter and aromatic elements that distinguish it from other plant-derived flavoring agents. Another comparison can be made with citrus-derived flavor extracts, such as bitter orange or lemon peel extracts, which provide bright, tangy, and bitter notes in formulated products. These botanical extracts are often used to enhance flavor complexity in beverages, confections, and savory applications. Buckbean Leaves, Extract differs in its sensory profile but shares the underlying concept of leveraging botanical sources to introduce natural flavor nuances that enrich consumer perception. Formulators select among these botanical extracts based on desired taste characteristics, compatibility with other ingredients, and target consumer preferences. Aromatic spice extracts, such as clove or cardamom extracts, further illustrate how plant-derived flavoring agents contribute signature sensory attributes in food products. Each botanical extract embodies a characteristic profile that can be harnessed in specific culinary contexts. In this landscape, Buckbean Leaves, Extract occupies a niche where its distinct bitter-aromatic signature is selected for formulations that benefit from such notes, rather than the spice-forward profiles associated with clove or the citrus brightness of lemon extracts. Across these examples, the common thread is that botanical flavoring agents are valued for their ability to introduce complex, natural sensory dimensions to food products. The choice among them depends on the desired sensory outcome, formulation compatibility, and regulatory allowances in the intended market. Buckbean Leaves, Extract complements this array of botanical flavoring agents by offering a unique set of sensory characteristics that can enhance flavor diversity when applied within regulatory frameworks and sensory design strategies.

Common Food Applications Narrative

In modern food product development, Buckbean Leaves, Extract finds application in a variety of contexts where unique flavor profiles and sophisticated sensory experiences are desired. While not a ubiquitous ingredient in mainstream food categories, this botanical extract is valued by flavor houses and culinary innovators for its ability to impart distinctive bitter and aromatic nuances that can elevate specialty products. In beverage formulation, for example, buckbean extract may be used sparingly in craft beverages, fortified waters with botanical notes, and flavor-forward nonalcoholic drinks aimed at adult palates. Its bitter elements can balance sweetness and provide added complexity that distinguishes one beverage formulation from another. In the realm of savory foods, botanical extracts like buckbean can complement spice blends, herbal seasonings, and umami-rich sauces where layered taste experiences are important. Chefs and food scientists may incorporate buckbean extract into marinades, dressings, and condiments where its herbal character supports broader flavor dimensions without overwhelming other ingredients. The extract’s ability to function as both a flavoring agent and an adjuvant allows it to support primary flavor components while contributing supportive sensory elements that enhance overall perception. Ready-to-eat products that emphasize natural or botanical ingredients may also feature buckbean extract as part of their differentiating sensory signature. In snack seasonings, artisan crackers, and specialty chips, the extract can be combined with complementary herbs and spices to create bold, memorable taste profiles. Its use in plant-based foods and alternative proteins is another area where botanical extracts help mimic complex flavor experiences traditionally associated with animal-derived ingredients. In confectionery and bitter candy segments, the extract’s bitterness may be harnessed in conjunction with sweet and sour components to produce balanced flavor experiences that appeal to consumers seeking more mature or distinctive tastes. Bitters and aperitif-style candies, for instance, may use botanical extracts to provide nuanced bitter undertones that are appreciated in certain market niches. Importantly, the inclusion of Buckbean Leaves, Extract in food products is typically at levels where its sensory contribution is technically justified and proportionate to the intended flavor effect. Regulations guiding the use of flavoring agents and adjuvants underscore that such ingredients should be incorporated at the minimum levels necessary to achieve their purpose, reinforcing that their function is technical rather than nutritional. Manufacturers and flavor formulators conduct rigorous sensory and analytical testing to ensure that the extract contributes positively to the final product without introducing off-notes or sensory imbalances. This iterative development process helps maintain consistency and consumer acceptance across batches and product lines.

Safety & Regulations

FDA

  • Notes: Listed under flavoring agents and related substances in the CFR inventory without specific numeric safety limits.
  • Regulation: 21 CFR 172.510

EFSA

  • Notes: No specific EFSA additive listing or E number has been found.

JECFA

  • Notes: No dedicated JECFA evaluation entry with numeric ADI available.

Sources

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