CATECHU, BLACK, POWDER (ACACIA CATECHU WILLD.)

CAS: 977090-84-8 COLOR OR COLORING ADJUNCT, FLAVOR ENHANCER, FLAVORING AGENT OR ADJUVANT

CATECHU, BLACK, POWDER (ACACIA CATECHU WILLD.) is a finely ground plant-based powder used in food formulations for color and flavor augmentation. In the United States it is listed in the FDA Substances Added to Food inventory permitted under the regulatory condition 21 CFR 172.510.

What It Is

CATECHU, BLACK, POWDER (ACACIA CATECHU WILLD.) is an ingredient derived from the heartwood of the Acacia catechu tree, a leguminous species native to parts of southern Asia. In food ingredient inventories and regulatory listings it is referenced under the CAS number 977090-84-8 and recognized by a variety of synonyms including Black Catechu Powder and Cutch Tree Powder. The technical function of this ingredient in foods is defined as a color or coloring adjunct, flavor enhancer, and flavoring agent or adjuvant, indicating its use to modify sensory properties such as appearance, taste, or aroma. Botanically, the source material for this powder comes from the wood tissue of Acacia catechu Willd., which contains a complex mixture of plant-derived compounds including tannins, polyphenols, and other phytochemicals. These compounds contribute to the characteristic brown hue and astringent taste profile associated with the powder. While the term catechu may historically refer to both red and black forms of plant extracts, the black powder form specifically is prepared from carefully processed heartwood that has been decocted and dried for use as an ingredient. Within regulatory inventories such as the U.S. Food and Drug Administration’s (FDA) Substances Added to Food list, this substance appears with defined technical uses but subject to the conditions of regulatory sections that govern natural flavoring substances and adjuvants. Its categorization reflects functions that are broadly technological rather than nutritive, and the ingredient is typically incorporated at levels sufficient to achieve its intended color or flavor effects under sound manufacturing practice. Its inclusion in global food systems stems from both historical use in regional culinary traditions and evaluation by flavor associations and food safety authorities. Despite its botanical origin and longstanding use, the detailed chemical composition of the powder can vary with source material, extraction process, and particle size, leading to a range of sensory and functional outcomes in finished food products. This section defines the ingredient’s identity in terms that link botanical origin, regulatory listing, and technical applications in food systems.

How It Is Made

The production of CATECHU, BLACK, POWDER (ACACIA CATECHU WILLD.) begins with the selection of Acacia catechu heartwood, the dense inner wood of the tree that contains a concentrated array of plant constituents. Historically, the heartwood is harvested and then subjected to a process of boiling or decoction in water. This elevates water-soluble compounds, including tannins and associated phenolics, into solution. After sufficient extraction time, the decoction is concentrated by evaporating the aqueous phase until a syrupy mass remains. This condensed mass is then dried thoroughly to remove residual moisture. Drying may be accomplished through controlled heat application or air drying in environments that prevent contamination and preserve the integrity of heat-sensitive constituents. Once dry, the material is ground into a fine powder that becomes the ingredient used in food applications. Throughout this manufacturing pathway, quality control measures ensure that the starting botanical material is free from extraneous contaminants, and that the dried powder meets specifications for appearance, particle size distribution, and typical moisture content. Industrial-scale production often involves additional refinement steps, such as sieving to achieve consistent granulation, and may include testing for heavy metals, microbial safety, and other quality parameters. However, because this ingredient class is botanical in origin rather than a single defined molecular entity, specific analytical standards can vary by producer and regulatory requirement. The process focuses on retaining the functional compounds responsible for flavor and color while ensuring that the final powdered product is stable and suitable for food incorporation. Manufacturers also adhere to Good Manufacturing Practices (GMP) and applicable food safety standards which govern hygiene, traceability, and documentation throughout production. These practices help minimize the risk of adulteration or contamination, contributing to the overall safety profile of the finished ingredient. At each stage, from raw material harvest to final milling, sound procedural controls support quality and consistency so that the powder performs as expected in downstream food formulations.

Why It Is Used In Food

CATECHU, BLACK, POWDER (ACACIA CATECHU WILLD.) is incorporated into food products primarily because it can influence sensory characteristics in ways that are desirable from a formulation standpoint. Its role as a color or coloring adjunct reflects its ability to impart a brownish hue to foods and beverages, which can be particularly useful in applications that seek a natural colorant rather than a synthetic dye. This usage is aligned with consumer interest in plant-derived and recognizable sources of color, although the intensity and stability of plant-based colorants can differ from synthetic alternatives. In addition to color modification, this ingredient functions as a flavor enhancer or flavoring agent. Components inherent in the botanical extract contribute to a subtle astringency and complex taste profile that can complement and round out other flavor notes in a formulation. In flavor systems where depth, warmth, or balanced bitterness is desirable, small quantities of the powder may be used to modulate overall sensory perception. Food technologists may select this ingredient when developing products that aim to balance sweetness with earthy or robust notes, or when a plant-derived source of color is preferred for labeling transparency. Its inclusion is typically governed by considerations of minimum effective dose, such that only the amount necessary to achieve the intended sensory outcome is added. That practice is part of the regulatory framework for natural flavoring substances and related compounds, which emphasizes the principle of achieving functional effect with minimal use. Overall, the use of this ingredient is rooted in its multifunctional potential — influencing appearance and taste — which makes it attractive in certain niche food applications where natural, botanical-sourced additives are desired by formulators and consumers alike.

Adi Example Calculation

Because CATECHU, BLACK, POWDER (ACACIA CATECHU WILLD.) does not have a specific numeric acceptable daily intake established by major global food safety authorities, an illustrative calculation cannot be provided in the same manner as for additives with defined ADI values. In regulatory systems where a numeric ADI is absent, the guiding principles emphasize that the ingredient should be used in the minimum amount necessary to achieve its intended functional effect in food. Illustrative examples for ingredients with numeric ADIs typically involve multiplying an ADI value by body weight to estimate a tolerable daily intake. In the absence of such a numeric ADI, formulators and risk managers instead consider factors such as anticipated use levels in the recipe, the proportion of the ingredient in the finished product, and typical consumption patterns of that product category. These considerations help ensure that overall exposure remains consistent with the regulatory framework governing natural flavoring substances, which prioritizes good manufacturing practice and minimal functional use. Therefore, rather than calculating a hypothetical intake based on a numeric ADI, product developers focus on determining appropriate inclusion rates that satisfy sensory goals without exceeding what is reasonably necessary, aligning with regulatory conditions that govern usage rather than specifying numeric limits.

Safety And Health Research

Regulatory authorities and scientific bodies typically approach safety evaluation of food additive ingredients by considering the chemical composition of the substance, its intended use levels, and toxicological data from studies relevant to human exposure. For botanical ingredients like CATECHU, BLACK, POWDER (ACACIA CATECHU WILLD.), comprehensive toxicological profiles may be less well defined in comparison to single-entity synthetic compounds, making reliance on regulatory listings and inventories an important aspect of understanding safety context. In the United States, the listing of this ingredient under the FDA Substances Added to Food inventory with a specified regulatory condition suggests that agencies acknowledge its use within defined functional categories. The governing regulation emphasizes use at the minimum effective level and compliance with good manufacturing practice, rather than establishing a numeric acceptable daily intake. This approach is common for substances categorized as natural flavoring agents where broad toxicological data support their traditional use and low-level inclusion in foods. Scientific literature related to Acacia catechu and extracts derived from it often focuses on a range of biological activities observed in laboratory or preclinical studies. These can include investigations of phytochemical content and biological activity in models unrelated to regulated food additive use. However, it is important to note that outcomes from such studies do not directly define food safety in the context of regulated consumption and are not, by themselves, regulatory assessments. Instead, regulators rely on structured evaluation processes when determining allowable use and conditions. In summary, safety context for this ingredient in food reflects its historical use, listing in regulatory inventories, and the principle that botanical extracts used as flavoring substances are incorporated in foods at levels that do not pose identified risks under normal conditions of use. Because detailed toxicological data may not be publicly available in the same manner as for well-defined synthetic additives, formulators and risk managers adhere to regulatory mechanisms that emphasize good manufacturing practice and minimum necessary use.

Regulatory Status Worldwide

In the United States, CATECHU, BLACK, POWDER (ACACIA CATECHU WILLD.) is listed on the FDA Substances Added to Food inventory with an association to the regulatory condition 21 CFR 172.510, which governs natural flavoring substances and natural substances used in conjunction with flavors. That section of the Code of Federal Regulations allows such substances to be used in food when they are employed in the minimum quantity required to achieve their intended physical or technical effect and in accordance with good manufacturing practice. The listing in the FDA inventory reflects administrative recognition of its acceptable use within these conditions. Beyond the U.S., regulatory frameworks for food additives vary by jurisdiction. In some regions, botanical extracts with similar functions may be considered generally acceptable as flavoring agents or color adjuncts when derived from food-grade sources and used at levels appropriate for their intended effect. International bodies such as the Joint FAO/WHO Expert Committee on Food Additives (JECFA) maintain databases and specifications for food additives and flavoring substances but may not have evaluated every botanical ingredient in detail. Databases provide tools to search for specifications and evaluation history, though specific entries for this powder under its CAS number or synonyms may not be individually delineated in public-facing sections. In the European Union, similar botanical extracts can be assessed under regulations that govern flavoring substances and food additives, with potential requirements for evaluation by relevant scientific panels. However, detailed authoritative determinations such as E-number assignments or defined acceptable daily intake values may not be established for every plant-derived ingredient without specific evaluation. Consequently, regulatory status worldwide reflects a combination of listing in national or regional inventories, alignment with flavoring substance categories, and adherence to good manufacturing and labeling practices in each market.

Taste And Functional Properties

CATECHU, BLACK, POWDER (ACACIA CATECHU WILLD.) exhibits sensory characteristics that arise from the complex mixture of plant-derived constituents present in the powder. Organoleptically, products made from heartwood extracts of Acacia catechu tend to demonstrate a deep brown color, a gentle astringency, and a subtle combination of bitter and tannic notes. These sensory impressions are attributable to polyphenolic compounds inherent to the botanical source, which lend both visual and taste traits to finished products. In terms of functional behavior, the powder is dispersible in aqueous systems, contributing color and taste without significant alteration of product texture when used at typical formulation levels. Because plant-derived colorants often interact with pH and other components in a food matrix, formulators take care to evaluate stability under varying processing conditions, such as heat treatment, pH shifts, or exposure to light. The net effect of these interactions can influence the final appearance over shelf life, and as such, it is common practice to bench-test this ingredient under expected process parameters. Solubility considerations also play a role in functional performance. While the powder readily disperses in water, its tint strength and flavor impact are concentration-dependent, and careful calibration is essential to achieve consistent results across production batches. In applications where a pronounced color is not the primary objective, the ingredient may be used in conjunction with other colorants or flavor systems to achieve a balanced sensory profile. The astringent component of the taste profile can interact with other flavor elements, potentially enhancing perceived flavor complexity or tempering overly sweet or bland formulations. However, because taste perception is subjective and dependent on the complete composition of a food or beverage, formulators typically adjust levels of this ingredient in iterative trials to align with product goals. In summary, the taste and functional properties of this powder are rooted in its plant-derived chemistry, and its practical use reflects careful consideration of sensory outcomes in diverse food systems.

Acceptable Daily Intake Explained

An acceptable daily intake (ADI) is a concept used by food safety authorities to describe the estimated amount of a substance that can be consumed daily over a lifetime without appreciable health risk, based on available toxicological data. For many food additives, especially those that are well studied and defined at the molecular level, numeric ADI values are established through comprehensive evaluation by expert committees. However, for some botanical extracts and complex mixtures such as CATECHU, BLACK, POWDER (ACACIA CATECHU WILLD.), specific numeric ADI values may not be defined by major regulatory bodies. In regulatory frameworks where numeric ADIs are not established for every ingredient, the focus shifts to principles of good manufacturing practice and minimum effective use. This means that ingredients with complex botanical compositions and longstanding use patterns are incorporated into foods at levels that achieve their intended technical function — such as color or flavor enhancement — while minimizing unnecessary exposure. The rationale is that historical consumption and regulatory inventory inclusion support safety at typical use levels, even in the absence of a quantified ADI. Consumers and formulators should understand that the absence of a numeric ADI does not imply that a substance is unsafe; rather, it reflects that regulatory evaluation has not produced sufficient evidence to warrant a formal numeric limit or that such detailed assessment is not required for the category of use. Many natural flavoring substances fall into this category, where regulatory conditions focus on responsible use patterns rather than prescriptive intake numbers. Ultimately, the concept of ADI provides context for how food safety authorities manage potential risks associated with long-term exposure to additives. In this case, the ingredient’s inclusion in inventories and regulatory listings with specified conditions underscores that safety is addressed through regulatory mechanisms that emphasize appropriate use rather than a fixed daily intake parameter.

Comparison With Similar Additives

When compared with other natural flavoring and coloring adjuncts used in food formulations, CATECHU, BLACK, POWDER (ACACIA CATECHU WILLD.) shares certain traits with other plant-derived ingredients but also exhibits distinct characteristics. For example, caramel color is another plant-derived colorant commonly used to impart brown hues to foods and beverages. Unlike catechu powder, which contributes both color and taste nuances, caramel color is largely inert in flavor and is used purely for visual impact. This difference influences formulation decisions where both sensory attributes and color are priorities. Similarly, other botanical extracts such as paprika extract provide natural color and mild flavor contributions, but typically leach red or orange hues and have different flavor profiles rooted in carotenoid compounds, whereas catechu powder’s polyphenolic composition yields deeper brown shades and astringent taste elements. When choosing between these ingredients, food technologists consider which visual and taste qualities best complement the overall product concept. In the realm of flavor enhancers, ingredients like natural umami-rich yeast extracts provide savory depth without significant color impact. Catechu powder, by contrast, may influence both appearance and taste and thus occupies a niche where multifunctional effects are desirable. The selection between such additives depends on formulation targets, whether that is enhancing savory notes, adjusting color, or integrating plant-based elements that align with clean-label trends. These comparisons illustrate that while CATECHU, BLACK, POWDER (ACACIA CATECHU WILLD.) shares commonality with other natural extracts in being plant-based, its combination of color and flavor impacts makes it a unique choice in certain applications. Formulators weigh these properties alongside regulatory status and ingredient sourcing considerations when selecting among similar additive options.

Common Food Applications Narrative

CATECHU, BLACK, POWDER (ACACIA CATECHU WILLD.) finds application across a range of food products where its botanical origin, color contribution, and flavor-modulating properties align with formulation needs. In beverage systems, especially those with a darker visual profile such as certain teas, herbal blends, or flavored water preparations, small amounts of this powder can deepen color and support a more robust visual character. Its use in such beverages may also contribute subtle nuances to taste with minimal impact on overall flavor balance. In confectionery and baked goods, formulators seeking plant-derived color options may incorporate this ingredient to complement brown shades or to harmonize flavor profiles that benefit from mild astringency. Its presence in products like fruit-flavored confections, baked snacks with botanical flavor themes, or specialty items with natural labels can contribute to both appearance and consumer-perceived complexity. Because it is recognized as a natural ingredient, it may also appeal to product portfolios emphasizing clean labeling or non-synthetic additive sources. Savory applications, including sauces, seasonings, and condiments, can also leverage the functional traits of this ingredient. In these contexts, the powder may be used to support brown hues or to introduce subtle earthy tones that blend with herbs, spices, and other flavor components. Its role is typically secondary to primary seasoning agents, yet formulators value the ability to fine-tune color and flavor nuances with plant-based materials. Specialty food products and artisanal offerings often serve as platforms where botanical extracts like this powder play a role in differentiating sensory character. For example, heritage recipes or fusion culinary products that draw on traditional ingredient profiles may incorporate this powder to deliver a sense of authenticity or to echo regional flavor cues. Across all applications, usage levels are carefully controlled to ensure that the ingredient’s contribution is harmonious with overall product quality and consumer expectations.

Safety & Regulations

FDA

  • Approved: True
  • Regulation: 21 CFR 172.510

EFSA

  • Notes: No specific EFSA evaluation or numeric ADI found

JECFA

  • Notes: No specific JECFA numeric ADI or year found

Sources

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