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Food-Grade Lactic Acid (Premium) is a high-purity, biodegradable organic acid designed for superior acidity regulation, microbial inhibition, and flavor enhancement. It is widely used in food processing, dairy, beverages, and other applications requiring premium quality and safety.
Product Overview
Food-grade lactic acid (premium) is a high-purity lactic acid produced using modern fermentation and refining technologies, with corn starch or corn stalks as raw materials. Its chemical name is L(S)-2-hydroxypropanoic acid, with a molecular formula of C3H6O3. Lactic acid has a mild acidic taste, moisture-absorbing properties, and exhibits an acidic reaction in aqueous solutions. It is miscible with water, ethanol, or ether, but is insoluble in chloroform. As a common hydroxycarboxylic acid, lactic acid has broad applications in the food and pharmaceutical industries.
Product Features
- Mild Acidity:This product has a gentle acidic taste, making it suitable for seasoning various food and beverage products.
- Easily Absorbed:Lactic acid is easily absorbed by the human body, offering strong biocompatibility.
- Good Solubility:It mixes well with water, ethanol, ether, and other solvents, demonstrating excellent solubility.
- Moisture Absorption:With certain moisture-absorbing properties, it is ideal for use in food and pharmaceutical formulations.
Applications
- Food Industry:Lactic acid is widely used as an acidulant in meat and vegetable pickling, brewing, dairy products, beverages, and other food processing. It helps regulate pH, prevent microbial growth, extend shelf life, and enhance flavor.
- Pharmaceutical Industry:In pharmaceuticals, it serves as a pH regulator, material for sustained-release systems, and a chiral intermediate, making it extensively used in drug manufacturing.
- Industrial Applications:Lactic acid is used in electroplating, plastics, paints, papermaking, and leather industries, demonstrating good complexing properties and antimicrobial effects.
| Test Item | Specification | Remark |
| Acidic in aqueous solution and positive reaction with lactate salt | — | Identification test |
| Lactic acid content (w/%) | 80-90 | Qualified |
| L-Lactic acid content (w/%) | ≥98.5 | Qualified |
| Color (APHA) | ≤50 | Qualified |
| Color after 6 months (25℃) (APHA) | ≤50 | Qualified |
| Density (20℃) (g/ml) | 1.18-1.21 | Qualified |
| Odor | Slightly acidic | Qualified |
| Heavy metals (w/%) | ≤0.001 | Qualified |
| Iron salts (as Fe) (w/%) | ≤0.001 | Qualified |
| Chlorides (as Cl) (w/%) | ≤0.002 | Qualified |
| Arsenic salts (w/%) | ≤0.0001 | Qualified |
| Sulfates (as SO4) (w/%) | ≤0.005 | Qualified |
| Calcium salts (w/%) | ≤0.002 | Qualified |
| Ash residue (w/%) | ≤0.1 | Qualified |
| Easily carbonized compounds | Pass test | Qualified |
| Solubility in ether | Pass test | Qualified |
| Reducing sugars | Pass FCC test | Qualified |
| Oxalic acid, phosphoric acid, tartaric acid, citric acid | Pass USP test | Qualified |
| Methanol (w/%) | ≤0.2 | Qualified |
| Cyanides (w/%) | ≤0.0005 | Qualified |
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