STARCH, FOOD, MODIFIED: ACETYLATED DISTARCH OXYPROPANOL
STARCH, FOOD, MODIFIED: ACETYLATED DISTARCH OXYPROPANOL is a chemically modified food starch used to alter the functional properties of native starch in food systems and industrial applications. It is listed in the U.S. Food and Drug Administration (FDA) Inventory of Food Contact Substances under 21 CFR parts 172.892 and 175.105 and is recognized primarily as a modified starch for use in certain food processing and indirect food contact uses.
What It Is
STARCH, FOOD, MODIFIED: ACETYLATED DISTARCH OXYPROPANOL is a type of chemically modified starch used in the food industry and related applications. Chemically modified starches are derived from native starch by introducing specific chemical substituents to alter their physical and functional properties. Modified starches are widely used as thickeners, stabilizers, texturizers, and binders in a variety of processed foods because native starches may lack the stability or consistency needed for industrial food processing. By modifying the starch molecule, manufacturers can tailor performance characteristics such as viscosity, clarity, gel strength, and resistance to heat or shear. This ingredient is identified by the Chemical Abstracts Service (CAS) number 977120-10-7 and appears in U.S. regulatory inventories for food contact and food additive approval. Chemically modified starches are an extensive class of food ingredients, and despite differences in specific chemical treatment, they share a common basis in starch chemistry, which consists of linear and branched glucose polymers originally present in native starch sources such as corn, wheat, tapioca, or potato. The modification process for this ingredient involves the introduction of acetyl and oxypropyl substituents, which can lead to distinct functional properties compared with native or other modified starches. This ingredient is part of the broader category of "food starch-modified" as recognized by regulatory authorities, indicating that it has been evaluated and appears in official listings for permitted use under specified conditions.
How It Is Made
The manufacturing of STARCH, FOOD, MODIFIED: ACETYLATED DISTARCH OXYPROPANOL typically begins with a native starch source such as corn, wheat, potato, or tapioca. Native starch consists largely of two polysaccharides: amylose, which is a mainly linear polymer of glucose units, and amylopectin, which is highly branched. The physical and functional properties of native starch are determined by the ratio of amylose to amylopectin, granule morphology, and inherent reaction to heat and shear during processing. To produce modified starches, chemical agents are used to alter the starch molecule. In the case of acetylated and oxypropyl derivatives, reagents such as acetic anhydride introduce acetyl groups to the hydroxyl sites on the glucose units of the starch polymer, and oxypropyl reactions introduce propanol-type substituents. These chemical substitutions change the interaction of starch with water and affect viscosity, stability, and resistance to retrogradation. In a typical controlled process, a starch slurry is reacted with the modifying reagents under regulated conditions of pH, temperature, and time to achieve the desired degree of substitution. After the reaction is complete, the product is neutralized to remove any residual reagents, washed to eliminate reaction byproducts, dried to the appropriate moisture content, and milled or screened to produce a consistent powder. Good manufacturing practice and purification steps help ensure that residual chemical reagents and byproducts are minimized. The resulting modified starch powder is evaluated for functional performance and compliance with applicable purity criteria before distribution. Although the specific details of manufacturing parameters and proprietary processing conditions vary by producer, the general approach involves well-established starch chemistry techniques that allow manufacturers to tailor ingredient performance for specific end uses.
Why It Is Used In Food
STARCH, FOOD, MODIFIED: ACETYLATED DISTARCH OXYPROPANOL is used in food formulations to achieve functional improvements that native starches alone may not provide. Food manufacturers often face challenges when trying to achieve stable textures, viscosities, and processing resilience in products that undergo varied temperatures, mechanical stress, long shelf-life, and pH changes. Modified starches address these challenges by offering properties such as improved thickening efficiency, enhanced stability under heat or freezing, and more consistent behavior across processing conditions. The introduction of acetyl and oxypropyl groups to the starch backbone changes the way water interacts with the polymer chains and reduces the tendency for retrogradation, which is the tendency of gelatinized starches to reassociate and cause texture changes over time. This can be particularly beneficial in products where a consistent mouthfeel and stability are important, such as sauces, gravies, and dressings. Modified starches can also contribute to emulsification and stabilization of dispersed phases in complex food matrices. In bakery products, modified starches can help maintain moisture and improve the structure of batters and doughs. In ready-to-eat meals and frozen foods, they can stabilize texture through freeze-thaw cycles. Even though each specific modified starch has unique properties, the overarching reason for their use is to ensure that a food product performs reliably during manufacturing, storage, and consumption. Because STARCH, FOOD, MODIFIED: ACETYLATED DISTARCH OXYPROPANOL appears on regulatory inventories for food additives, it has been evaluated to some degree for these technical functions and permitted under defined conditions. The use of modified starches like this one reflects food science practices that balance formulation needs with adherence to safety and regulatory considerations.
Adi Example Calculation
In the context of an ADI that is designated as "not specified," a numerical example calculation is not provided because there is no specific milligram-per-kilogram body weight value assigned. The designation means that for this class of modified starches, available safety data do not indicate the need for a defined numerical ADI. In regulatory practice, when a numerical ADI exists, it would be used as a benchmark to illustrate how much of a substance could theoretically be consumed daily over a lifetime without appreciable risk. For example, if a hypothetical ADI of X mg/kg body weight per day were established for a food additive, a person weighing an average 70 kilograms could theoretically consume up to 70 times X milligrams of that additive daily within that ADI. However, because JECFA and other expert bodies have often concluded that many modified starches do not require a numerical ADI due to low toxicity concerns, there is no specific number to apply for STARCH, FOOD, MODIFIED: ACETYLATED DISTARCH OXYPROPANOL. This regulatory designation is itself an outcome of the safety evaluation process.
Safety And Health Research
Safety evaluations for modified starches such as STARCH, FOOD, MODIFIED: ACETYLATED DISTARCH OXYPROPANOL are typically conducted by regulatory bodies and scientific expert committees based on toxicological studies and available data on similar compounds. Modified starches in general have a long history of use in food and are widely considered safe when used as intended. Because these ingredients are derived from starch, which itself is a carbohydrate polymer digestible by human enzymes, modified starches are hydrolyzed and metabolized in a similar manner. Regulatory evaluations often focus on the technical function of the ingredient, potential impurities, and any effects arising from the chemical modification process rather than on inherent toxicity. At the international level, the Joint FAO/WHO Expert Committee on Food Additives (JECFA) has evaluated categories of modified starches for identity, purity, and toxicological endpoints and has, for many variants, allocated an ADI of "not specified," a regulatory term indicating that based on the available data, an acceptable daily intake numerical limit was not necessary due to low toxicity concerns. Research into modified starches often assesses parameters such as genotoxicity, subchronic toxicity, and effects on nutrient absorption. The class of modified starches has generally shown low toxicity in standard test systems, with no specific health hazards identified at levels relevant to food use. However, the specific scientific literature on STARCH, FOOD, MODIFIED: ACETYLATED DISTARCH OXYPROPANOL itself is limited in publicly accessible sources, and much of the safety evaluation is inferred from the broader category of modified starches. Food regulatory bodies also define purity criteria and processing standards to minimize residual reagents or byproducts from the chemical modification process. Overall, safety and health research supports the continued use of modified starches under regulated conditions, focusing on well-established scientific principles of digestion, metabolism, and toxicology.
Regulatory Status Worldwide
In the United States, STARCH, FOOD, MODIFIED: ACETYLATED DISTARCH OXYPROPANOL appears in the U.S. Food and Drug Administration (FDA) Inventory of Food Contact Substances and is identified with references to 21 CFR 172.892 for food starch-modified and 21 CFR 175.105 for indirect food additives used in adhesives and food contact applications. These listings indicate that the ingredient has been evaluated and is permitted under specified conditions of use for direct addition to food (as a modified starch) and certain indirect contact scenarios when used in food packaging materials. The listing of this specific chemical name and CAS number in the FDA inventory reflects the regulatory recognition of its status for these uses. In other regions, such as the European Union, modified starches are recognized as a broad category of food additives with specific E numbers assigned to many defined types (for example, acetylated distarch phosphate is E1414). However, the specific chemical described here does not have a directly corresponding E number in the EU additive lists, and regulatory allowances may vary by jurisdiction. At the international level, modified starches are addressed by the Joint FAO/WHO Expert Committee on Food Additives (JECFA) and in FAO/WHO food additive specifications, which cover multiple types of modified starches. For many modified starch variants, JECFA has assigned an ADI "not specified," indicating no numerical acceptable daily intake was deemed necessary based on available toxicity data for the class. The regulatory status worldwide reflects a pattern where modified starches are considered technically justified ingredients for approved uses when they meet purity and safety criteria set by governing authorities.
Taste And Functional Properties
Modified starches such as STARCH, FOOD, MODIFIED: ACETYLATED DISTARCH OXYPROPANOL are generally characterized by their neutral sensory profile. Unlike flavoring agents or sweeteners, modified starches do not contribute a distinct taste or aroma to food products; this neutrality is one reason they are widely used as formulation tools. The introduction of chemical substituents like acetyl and oxypropyl groups does not impart perceivable flavor, but it significantly alters functional behavior. In aqueous systems, modified starches can act as effective thickening agents, forming viscous solutions that contribute body and texture without altering taste. Their functional contribution can be particularly noticeable in sauces, soups, and dressings, where thickness and mouthfeel are important. Because of the chemical modifications, these starches can exhibit improved stability under thermal processing, meaning that they maintain viscosity and texture when subjected to high temperatures during cooking or pasteurization. Similarly, modified starches often demonstrate better freeze-thaw stability, resisting breakdown of structure when frozen and thawed compared to native starches. The solubility and hydration behavior of modified starches can also be more predictable than native starch, which may be prone to clumping or inconsistent performance. Overall, the sensory impact of this ingredient is minimal, and its contribution is primarily functional. This is typical for starch-based texturizing agents used in food manufacturing, where the goal is to influence rheology and stability rather than flavor. In applications where clear gels or specific textural attributes are desired, formulators rely on modified starches tailored to those purposes. While specific performance metrics such as viscosity curves and gel strengths vary among different modified starches and depend on processing history, the essential point is that chemical modification confers functional advantages that support consistent product quality.
Acceptable Daily Intake Explained
An acceptable daily intake (ADI) is a regulatory concept used by food safety authorities to describe the amount of a substance that can be consumed every day over a lifetime without appreciable health risk. For many modified starches, including variants similar to STARCH, FOOD, MODIFIED: ACETYLATED DISTARCH OXYPROPANOL, expert committees such as the Joint FAO/WHO Expert Committee on Food Additives (JECFA) have assigned an ADI of "not specified." This designation means that, based on available toxicity data and the substance’s mode of metabolism, it was not necessary to define a numerical ADI for consumer protection. In other words, the evidence did not reveal any health concerns at levels of consumption typical from food use. ADIs are often expressed in milligrams of substance per kilogram of body weight per day when numerical values are established. The designation of "not specified" does not imply unlimited use but reflects the confidence regulators have that typical dietary exposure to the ingredient under approved conditions is not associated with health risks. In practical terms, a modified starch having an ADI of "not specified" indicates regulators have determined that its safety profile is consistent with the levels used to achieve technological effects in foods. This regulatory approach helps food manufacturers and regulators ensure that ingredients such as this one are used within defined and safe boundaries. It is important to understand that an ADI is not a recommended intake level but rather a safety benchmark based on scientific evaluation.
Comparison With Similar Additives
STARCH, FOOD, MODIFIED: ACETYLATED DISTARCH OXYPROPANOL belongs to the broader class of modified starches, a group that includes many variants with distinct chemical modifications. For example, distarch phosphate, acetylated distarch phosphate, and hydroxypropyl distarch phosphate are other modified starches with specific functionalities. Distarch phosphate is often used as a stabilizer and thickener that retains viscosity under processing stress and is widely used in products such as soups and sauces. Acetylated distarch phosphate combines esterification and crosslinking to achieve enhanced resistance to heat and shear and improved clarity in gels. Hydroxypropyl distarch phosphate includes hydroxypropyl substitution, which can improve freeze-thaw stability in frozen desserts and refrigerated products. These variants illustrate how different chemical modifications influence functional properties such as viscosity, clarity, temperature tolerance, and interaction with water. While all these ingredients serve as texturizing and stabilizing agents, their specific performance characteristics guide formulators in selecting the most appropriate modified starch for a given application. Compared with native starch, which may break down under processing conditions, modified starches provide enhanced reliability. Among the modified starches, the pattern of substitution and crosslinking determines whether an additive is better for heat stability, freeze-thaw resistance, clarity of gels, or texture control. Understanding these differences helps food scientists optimize formulations based on product requirements and regulatory allowances in different regions.
Common Food Applications Narrative
STARCH, FOOD, MODIFIED: ACETYLATED DISTARCH OXYPROPANOL is part of the broader class of modified starches commonly used across a wide range of processed food products. In many food categories, formulators need ingredients that can deliver stable textures, reliable thickening, and consistency across a variety of processing conditions. Modified starches are incorporated into products such as instant puddings, pie fillings, and dessert gels to provide body and mouthfeel that are not achievable with native starches alone. In gravies and sauces, they help maintain a smooth, uniform consistency that resists syneresis or separation during storage. In dairy alternatives and creamy dressings, modified starches contribute to a rich mouthfeel and help stabilize emulsions. Ready-to-eat meals, especially those that are frozen or require reheating, benefit from modified starches that preserve texture after freeze-thaw cycles. In baked goods, these ingredients can assist in moisture retention, contributing to softness and shelf stability. Even products such as snack coatings and batter mixes use modified starches to influence the crispness and adhesion of coatings during frying or baking. While STARCH, FOOD, MODIFIED: ACETYLATED DISTARCH OXYPROPANOL itself might be used in specific applications based on technical requirements, the general pattern is that modified starches enable manufacturers to fine-tune texture and stability without adding flavor or sweetness. This makes them versatile tools in product development, especially for items that undergo complex processing or require a long shelf life.
Safety & Regulations
FDA
- Approved: True
- Regulation: 21 CFR 172.892 and 21 CFR 175.105
EFSA
- Notes: No specific EFSA evaluation for this exact substance could be verified.
JECFA
- Notes: JECFA evaluation covers modified starches broadly with ADI not specified for the class.
- Adi Display: Not specified
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