E1422 (Acetylated Distarch Adipate) is a natural starch (from corn, potato, cassava, or wheat) modified in two steps:<\/p>\n
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- Cross-linking with adipic anhydride:<\/strong> enhances structural strength, heat tolerance, shear stability, and performance under various processing conditions.<\/li>\n
- Acetylation with acetic anhydride:<\/strong> maintains softness and flexibility while reducing syneresis (water separation).<\/li>\n<\/ul>\n
This dual modification creates a multifunctional starch that withstands heat, freeze\u2013thaw cycles, and acidic conditions, while maintaining a smooth, stable, and low-degradation texture.<\/p>\n
According to international standards, E1422 refers to Acetylated Distarch Adipate under the EU food additive system. In the FAO\/WHO Codex Alimentarius, it is designated as INS 1422.<\/p>\n
2. Chemical Structure of E1422<\/strong><\/h2>\n
Cross-linking connects amylose and amylopectin chains via adipate ester bridges (Starch\u2013O\u2013CO\u2013(CH\u2082)\u2084\u2013CO\u2013O\u2013Starch), enhancing resistance to heat, shear, and acid. Acetylation replaces some \u2013OH groups with \u2013O\u2013COCH\u2083 at C-2, C-3, and C-6, keeping starch paste soft, flexible, and reducing recrystallization.<\/p>\n
Together, these modifications form the characteristic E1422 polymer network: adipate bridges provide strength, and acetyl groups maintain flexibility, ensuring starch stability under diverse processing conditions.<\/p>\n
After chemical modification, E1422 may undergo additional treatments (acid, alkali, enzymes, or bleaching) under GMP standards to optimize properties for specific applications, ensuring safety and consistency in the final product.<\/p>\n
![\"e1422\"](\"https:\/\/hungduystarch.com\/wp-content\/uploads\/2026\/01\/e1422-5.png\")
Chemical structure of Acetylated Distarch Adipate E1422<\/figcaption><\/figure>\n 3. Key Properties of E1422<\/strong><\/h2>\n
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- Heat-stable (boiling, pasteurization), acid-resistant, and withstands high mechanical forces (stirring, extrusion, homogenization).<\/li>\n
- Controls swelling and prevents water separation.<\/li>\n
- Improves clarity, gloss, and sensory quality.<\/li>\n
- Lowers gelatinization temperature, saving cooking time and energy.<\/li>\n
- Enhances thickening and gel formation.<\/li>\n
- Freeze\u2013thaw stable, maintains moisture and soft texture, reducing deformation or syneresis.<\/li>\n
- Resistant to acid, sugar, and salt; compatible with other thickeners.<\/li>\n<\/ul>\n
E1422 outperforms natural starch and single-modified starches: it is more heat-, acid-, and shear-resistant than E1420; produces clearer, smoother pastes with better water retention than E1412; and stabilizes swelling and prevents syneresis better than E1404.<\/p>\n
4. Industrial Applications of E1422<\/strong><\/h2>\n
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- Sauces & Seasonings:<\/strong> (chili, ketchup, black sauce, sesame, hot sauce, concentrates, jams, jellies) maintain viscosity and structure, preventing separation during storage.<\/li>\n
- Dairy Products:<\/strong> (yogurt, cream, milk skin) improve smoothness, structural stability, reduce whey separation, and enhance mouthfeel.<\/li>\n
- Mayonnaise & Oil\u2013Water Emulsions:<\/strong> increase water-phase viscosity, stabilize emulsions, prevent oil separation, and maintain texture.<\/li>\n
- Baked Goods:<\/strong> (cupcakes, sponge, cookies, mooncakes) improve crumb structure, retain moisture, maintain softness or crispness, extend shelf life.<\/li>\n
- Processed Meat:<\/strong> (sausages, fish balls, meatballs) enhance chewiness, maintain shape, reduce freeze-thaw water loss, and stabilize texture during cooking.<\/li>\n
- Hot Beverages:<\/strong> (coffee, tea, hot cereals, premixes) lightly thicken, maintain smooth, uniform texture throughout use.<\/li>\n
- Pasta & Dry Noodles:<\/strong> (rice noodles, gluten-free pasta, spaghetti, macaroni) improve chewiness, hold shape, reduce breakage, stable during cooking.<\/li>\n
- Frozen Foods:<\/strong> (battered seafood, fish sticks, shrimp\/beef\/fish coated products) stabilize coating, prevent water separation, maintain texture after thawing.<\/li>\n
- Pharmaceuticals:<\/strong> used in capsules and solutions as a thickener to maintain viscosity and structural stability.<\/li>\n
- Cosmetics:<\/strong> used in creams and gels to improve smoothness, stabilize emulsions, and enhance sensory feel.<\/li>\n<\/ul>\n
![\"e1422\"](\"https:\/\/hungduystarch.com\/wp-content\/uploads\/2026\/01\/e1422-2.png\")
E1422 stabilizes emulsions and is used in mayonnaise production<\/figcaption><\/figure>\n 5. Differences Between E1422 and E1442<\/strong><\/h2>\n
Both E1422 and E1442 are dual-modified starches, differing in chemical groups and target applications:<\/p>\n
- Dairy Products:<\/strong> (yogurt, cream, milk skin) improve smoothness, structural stability, reduce whey separation, and enhance mouthfeel.<\/li>\n
- Sauces & Seasonings:<\/strong> (chili, ketchup, black sauce, sesame, hot sauce, concentrates, jams, jellies) maintain viscosity and structure, preventing separation during storage.<\/li>\n
- Acetylation with acetic anhydride:<\/strong> maintains softness and flexibility while reducing syneresis (water separation).<\/li>\n<\/ul>\n