【CAS】598-82-3 Molecular formula: C3H6O3 Relative molecular mass:90.0705
構造式：
一．
Soft acidity: Lactic acid has a mild acidic taste and is suitable for seasoning.
Antimicrobial effect: It can effectively inhibit the growth of pathogenic microorganisms and extend the shelf life of food.
Water solubility: Lactic acid is easily soluble in water and can be mixed with water, ethanol, etc. freely, making it convenient to use.
二．
| パラメータ | 単位 | 仕様 (Food Grade) |
| 外観 | - | Colorless or yellowish liquid |
| Assay (C₃H₆O₃) | % (w/w) | ≥ 80.0 (aqueous solution) |
| 硫酸塩 (SO₄-) | % (w/w) | ≤ 0.005 |
| 塩化物 (Cl-) | % (w/w) | ≤ 0.002 |
| 鉄（Fe） | mg/kg | ≤ 10 |
| 重金属（鉛として） | mg/kg | ≤ 5 |
| ヒ素（As） | mg/kg | ≤ 1 |
| 糖類 | - | Passes test (no reduction) |
| Volatile Acids (as Acetic Acid) | % (w/w) | ≤ 0.2 |
| 点火時の残留物 | % (w/w) | ≤ 0.1 |
| Cyanide (CN⁻) | mg/kg | ≤ 5 |
| Oxalate (C₂O₄²⁻) | mg/kg | ≤ 100 |
| 微生物学的限界 | - | Absence of pathogens |
三．
Food Industry: Lactic acid is widely used in foods such as meat, beverages, wine-making, candies, and bread, as it can regulate pH levels, enhance flavor, and extend shelf life.
Dairy Products: As a natural ingredient, lactic acid is widely used in yogurt, cheese, and ice cream, enhancing flavor and antimicrobial properties.
Meat Products: Derivatives such as sodium lactate and potassium lactate are used in meat processing, which can absorb moisture and inhibit the growth of spoilage bacteria. Beverage: Among fruit juices and soft drinks, lactic acid serves as an acidulant, enhancing the taste and maintaining the stability of the product.
四．
Lactic acid is typically packaged in high-density polyethylene (HDPE) drums,25kg/barrel , stainless steel containers, or food-grade plastic IBC totes to prevent corrosion and contamination. The packaging must be tightly sealed to avoid moisture absorption and oxidation.
For storage, lactic acid should be kept in a cool, dry, well-ventilated area away from direct sunlight, heat sources, and incompatible materials (e.g., strong oxidizers).
