인산 에스테르 및 유도체

식품·음료 분야의 인산 에스터 및 유도체는 phytate 계열 봉쇄제 — phytic acid와 그 나트륨염 — 로서 다가 금속이온을 결합해 금속 촉매 산화와 스케일을 제어합니다. Phytic acid is myo-inositol hexaphosphate: six phosphate groups on one ring give it a high affinity for iron, copper, and calcium across a wide pH range. Where trace iron or copper is driving color loss or rancidity, a phytate sequestrant locks up the metal at low addition levels.

The two forms differ in how they handle pH. Free phytic acid is strongly acidic and pulls system pH down, which suits low-pH beverages and dips but can clash with neutral formulas. Sodium phytate is the pH-neutral, more soluble salt u2014 easier to dose into neutral systems, at the cost of added sodium. Choose the free acid where mild acidity is acceptable; choose the sodium salt where pH must stay neutral and a small sodium contribution is tolerable.

Phytate sequestrants protect color and flavor in dressings, canned and cured foods, seafood, and beverages by removing the metal catalysts that start oxidation. They also help suppress metal-protein haze and scale in process water. Add the sequestrant early, before the metal can catalyze a reaction, and confirm compatibility with any mineral fortificants, since a sequestrant competes for the same calcium, iron, or zinc you are trying to declare on the label.

• 미량의 철과 구리를 봉쇄하여 드레싱, 마요네즈, 통조림 제품의 색상과 풍미 보호
• 음료 및 염지·가공식품의 산화 안정성
• 양조 및 공정수의 금속-단백질 혼탁 및 스케일 제어
• ascorbate 및 기타 산화방지 시스템과 병용하는 봉쇄제 보조
• 유리 산미료를 쓰지 않으려는 중성 pH 금속이온 제어 (sodium phytate)

• Phytic acid u2014 PubChem
• Sodium phytate — PubChem