Sequestration — Process Challenge

Lebensmitteltaugliche Chelatbildner für metallkatalysierte Oxidation (EDTA, DTPA, Gluconat)

Spureneisen und -kupfer katalysieren Lipid- und Ascorbatoxidation, was Ranzigkeit, Farbverlust und metallische Noten verursacht; Chelatbildner zur Metallbindung gesucht
Updated Jun 2026
Lösungsansatz

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
Spezialadditive
Chelatisierung / Sequestrierung
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   Schmelzpunkt:MP: 242 °C /EDTA disodium dihydrate/
Schnellansicht
Alle Details
Tetrasodium EDTA (EDTA Na4)
CAS 64-02-8
Amine & Amide
Chelatisierung / Sequestrierung
Tetrasodium EDTA gives stronger metal sequestration at higher pH
Schmelzpunkt:300 °C (decomposes)   Dichte:6.9 lb/gal /Apparent density/   Solubility: Slightly soluble in ethanol
Schnellansicht
Alle Details
DTPA (Diethylenetriaminepentaacetic Acid)
CAS 67-43-6
Amine & Amide
Chelatisierung / Sequestrierung
Higher-denticity chelant holds iron tightly across a wide pH range for oxidation control
Physical Description: White to off-white solid   Siedepunkt:Decomposes   Schmelzpunkt:219-220 ºC
Schnellansicht
Alle Details
Sodium Gluconate (Food Grade)
CAS 527-07-1
Ester
Chelatisierung / Sequestrierung
Alkali-stable sequestrant for calcium and iron that also prevents scale in CIP cleaning
Schmelzpunkt:170-175 °C   Siedepunkt:No boiling point at normal pressure; decomposes…   Dichte:1.8 g/cm3
Schnellansicht
Alle Details
Citric Acid
CAS 77-92-9
Säuren & Salze
Chelatisierung / Sequestrierung
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.
Schmelzpunkt:153 °C (anhydrous)   Siedepunkt:Decomposes   Dichte:1.54 at 20 °C
Schnellansicht
Alle Details
Tetrasodium Pyrophosphate
CAS 7722-88-5
Säuren & Salze
Chelatisierung / Sequestrierung
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.
Schmelzpunkt:988 °C   Siedepunkt:Decomposes   Dichte:2.45
Schnellansicht
Alle Details
Potassium Citrate FG USP/FCC
CAS 6100-05-6
Chelatisierung / Sequestrierung
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.
Schnellansicht
Alle Details

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