Sequestration — Process Challenge

Agents chélateurs alimentaires pour oxydation catalysée par les métaux (EDTA, DTPA, gluconate)

Les traces de fer et de cuivre catalysent l'oxydation des lipides et de l'ascorbate, provoquant la rancidité, la perte de couleur et des notes métalliques ; besoin de chélateurs pour bloquer le métal
Updated Jun 2026
Approche de solution

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
Additifs de Spécialité
Chélation / Séquestration
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   Point de fusion:MP: 242 °C /EDTA disodium dihydrate/
Aperçu rapide
Détails complets
Tetrasodium EDTA (EDTA Na4)
CAS 64-02-8
Amines et Amides
Chélation / Séquestration
Tetrasodium EDTA gives stronger metal sequestration at higher pH
Point de fusion:300 °C (decomposes)   Densité:6.9 lb/gal /Apparent density/   Solubility: Slightly soluble in ethanol
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Détails complets
DTPA (Diethylenetriaminepentaacetic Acid)
CAS 67-43-6
Amines et Amides
Chélation / Séquestration
Higher-denticity chelant holds iron tightly across a wide pH range for oxidation control
Physical Description: White to off-white solid   Point d'ébullition:Decomposes   Point de fusion:219-220 ºC
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Détails complets
Sodium Gluconate (Food Grade)
CAS 527-07-1
Esters
Chélation / Séquestration
Alkali-stable sequestrant for calcium and iron that also prevents scale in CIP cleaning
Point de fusion:170-175 °C   Point d'ébullition:No boiling point at normal pressure; decomposes…   Densité:1.8 g/cm3
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Détails complets
Citric Acid
CAS 77-92-9
Acides et Sels
Chélation / Séquestration
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.
Point de fusion:153 °C (anhydrous)   Point d'ébullition:Decomposes   Densité:1.54 at 20 °C
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Tetrasodium Pyrophosphate
CAS 7722-88-5
Acides et Sels
Chélation / Séquestration
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.
Point de fusion:988 °C   Point d'ébullition:Decomposes   Densité:2.45
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Détails complets
Potassium Citrate FG USP/FCC
CAS 6100-05-6
Chélation / Séquestration
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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Détails complets

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