- Brief
- Natural sodium diacetate(Cas 126-96-5) is a food additive primarily used for preservation, mold prevention, and acidity regulation. It primarily inhibits microbial growth by releasing free acetic acid, demonstrating particularly effective results against molds, yeasts, and certain bacteria.
- Functional Advantages
- Highly Effective Antimicrobial: Performs optimally in low pH environments (e.g., acidic foods).
- High Safety Profile: Approved as a food additive by the U.S. FDA, EU (E262ii), and China (GB2760). Metabolizes into acetic acid (vinegar), posing no harm to humans.
- Synergistic Effects: Can be combined with potassium sorbate, sodium lactate, etc., to enhance preservative efficacy.
- No Flavor Impact: At appropriate levels, it has no pungent odor and can enhance acidity (e.g., replacing part of calcium propionate in bread).
- Usage Considerations
- Addition Levels: Must comply with national standards (e.g., China’s GB2760 specifies a maximum of 0.3g/kg in bread; typically 0.1-0.25% in meat products).
- PH Adaptability: Most effective in acidic to neutral foods (optimal at pH < 5.5).
- Solubility: Easily dissolves in water; can be added directly or used as a solution.
- Storage Conditions: Keep sealed and dry; avoid mixing with other alkaline substances.
- Baked Goods
- Bread, cakes, pastries: Extends shelf life and prevents mold growth without compromising taste.
- Seasonal foods like moon cakes: Inhibits mold commonly found in high-sugar, high-fat foods.
- Meat Products
- Sausages, ham, cured meats: Replaces some nitrites as a preservative, reducing harmful residue.
- Ready-to-eat meats: Inhibits pathogenic bacteria like Listeria to enhance safety.
- Condiments and Sauces
- Soy sauce, vinegar, sauces: Prevents secondary contamination after fermentation and stabilizes quality.
- Seasoning packets: Used in products requiring long-term storage, such as instant noodle seasonings.
- Snacks and Convenience Foods
- Potato chips, nuts: Prevents moisture and mold growth, maintains crispness.
- Instant rice, noodles: Extends shelf life when used synergistically with other preservatives.
- Animal Feed and Pet Food
- Used for mold prevention in animal feed; may also be added to pet food (must comply with relevant standards).
| Item | Specification |
| Appearance | White powder |
| Assay | ≥ 99.0% |
| Free acetic acid | 39.0-41.0% |
| Sodium acetate | 58.0-60.0% |
| Loss on Drying | ≤ 2.0% |
| Ash | ≤ 0.5% |
| PH | 4.5-5.0 |
| Heavy metal | ≤ 10 ppm |
| Arsenic | ≤ 2.0 ppm |
