Sequestration — Process Challenge

Quelantes grado alimentario contra la oxidación catalizada por metales (EDTA, DTPA, gluconato)

Trazas de hierro y cobre catalizan la oxidación de lípidos y ascorbato, provocando rancidez, pérdida de color y notas metálicas; se necesitan quelantes que inmovilicen el metal
Updated Jun 2026
Enfoque de solución

RawSource supplies the base chemicals that go into these programs. We can help with product selection, grade matching, and sourcing from multiple origins for supply security.

Typical Formulation Workflow
1
Process & Compliance Review
Map the application and contact points, and confirm food-grade and regulatory status (FCC/USP, Kosher/Halal, allergen) for every input.
2
Ingredient & Grade Selection
Select the right grade of acidulant, preservative, emulsifier, stabilizer, or processing aid for the formulation, label, and sensory targets.
3
Bench Trial & Dosing
Validate use level and performance in a bench or pilot batch, and specify packaging and lot traceability suited to food-safety requirements.
4
Quality & Shelf-Life Validation
Verify finished-product quality, microbial stability, and shelf life, and lock the spec with a CoA and document control for audits.
Recommended Chemistries (7)
Disodium EDTA (Food Grade)
CAS 139-33-3
Aditivos Especiales
Quelación / Secuestro
Chelates trace iron and copper that catalyze oxidation, protecting color, flavor and ascorbate in dressings, mayo and canned goods
Physical Description: White odorless solid; White odorless crystals   Appearance: White crystalline powder   Punto de fusión:MP: 242 °C /EDTA disodium dihydrate/
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Tetrasodium EDTA (EDTA Na4)
CAS 64-02-8
Aminas y Amidas
Quelación / Secuestro
Tetrasodium EDTA gives stronger metal sequestration at higher pH
Punto de fusión:300 °C (decomposes)   Densidad:6.9 lb/gal /Apparent density/   Solubility: Slightly soluble in ethanol
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DTPA (Diethylenetriaminepentaacetic Acid)
CAS 67-43-6
Aminas y Amidas
Quelación / Secuestro
Higher-denticity chelant holds iron tightly across a wide pH range for oxidation control
Physical Description: White to off-white solid   Punto de ebullición:Decomposes   Punto de fusión:219-220 ºC
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Sodium Gluconate (Food Grade)
CAS 527-07-1
Ésteres
Quelación / Secuestro
Alkali-stable sequestrant for calcium and iron that also prevents scale in CIP cleaning
Punto de fusión:170-175 °C   Punto de ebullición:No boiling point at normal pressure; decomposes…   Densidad:1.8 g/cm3
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Citric Acid
CAS 77-92-9
Ácidos y Sales
Quelación / Secuestro
Anhydrous citric acid, CAS verified. Canonical food-grade antioxidant synergist / metal chelator; its tricarboxylate deactivates pro-oxidant trace Fe/Cu in edible oils, fried snacks and beverages, directly stopping metal-catalyzed rancidity and metallic notes. Exact-use fit.
Punto de fusión:153 °C (anhydrous)   Punto de ebullición:Decomposes   Densidad:1.54 at 20 °C
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Tetrasodium Pyrophosphate
CAS 7722-88-5
Ácidos y Sales
Quelación / Secuestro
Anhydrous TSPP, CAS verified. Strong food-grade polyphosphate sequestrant of di/trivalent metals; ties up trace iron and copper to suppress metal-catalyzed lipid oxidation and color loss in aqueous food/beverage systems. Genuine fit for this exact problem.
Punto de fusión:988 °C   Punto de ebullición:Decomposes   Densidad:2.45
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Potassium Citrate FG USP/FCC
CAS 6100-05-6
Quelación / Secuestro
Tripotassium citrate monohydrate (E332ii), CAS verified. Citrate sequestrant of pro-oxidant Fe/Cu that works near-neutral pH where added acidity is undesirable; same chelant/antioxidant-synergist tier as the incumbent gluconate. Genuine fit and the standard USP/FCC commercial article of the two proposed citrate salts.
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