Sequestration — Process Challenge

食品グレードキレート剤:金属触媒酸化防止(EDTA、DTPA、グルコン酸塩)

微量の鉄・銅が脂質やアスコルビン酸の酸化を触媒し、酸敗、退色、金属臭を引き起こす;金属イオンを封鎖するキレート剤が必要
Updated Jun 2026
ソリューションアプローチ

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
特殊添加剤
キレート化 / 金属イオン封鎖
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   融点:MP: 242 °C /EDTA disodium dihydrate/
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Tetrasodium EDTA (EDTA Na4)
CAS 64-02-8
アミン・アミド類
キレート化 / 金属イオン封鎖
Tetrasodium EDTA gives stronger metal sequestration at higher pH
融点:300 °C (decomposes)   密度:6.9 lb/gal /Apparent density/   Solubility: Slightly soluble in ethanol
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DTPA (Diethylenetriaminepentaacetic Acid)
CAS 67-43-6
アミン・アミド類
キレート化 / 金属イオン封鎖
Higher-denticity chelant holds iron tightly across a wide pH range for oxidation control
Physical Description: White to off-white solid   沸点:Decomposes   融点:219-220 ºC
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Sodium Gluconate (Food Grade)
CAS 527-07-1
エステル類
キレート化 / 金属イオン封鎖
Alkali-stable sequestrant for calcium and iron that also prevents scale in CIP cleaning
融点:170-175 °C   沸点:No boiling point at normal pressure; decomposes…   密度:1.8 g/cm3
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Citric Acid
CAS 77-92-9
酸・塩類
キレート化 / 金属イオン封鎖
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.
融点:153 °C (anhydrous)   沸点:Decomposes   密度:1.54 at 20 °C
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Tetrasodium Pyrophosphate
CAS 7722-88-5
酸・塩類
キレート化 / 金属イオン封鎖
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.
融点:988 °C   沸点:Decomposes   密度:2.45
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Potassium Citrate FG USP/FCC
CAS 6100-05-6
キレート化 / 金属イオン封鎖
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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