Food Grade Acid Protease (100,000 U/ml)
High-Activity Liquid Enzyme for Brewing, Vinegar, Soy Sauce, Leather and Tobacco Applications
Product Overview
Acid Protease is a high-activity liquid protease designed to hydrolyze proteins efficiently under acidic conditions. With an activity of 100,000 U/ml, this food-grade enzyme breaks complex
proteins into smaller peptides and amino acids, improving fermentation performance, enhancing flavor development, and optimizing process efficiency. Supplied as a dark brown, flowable liquid, it disperses easily in water or processing media and is ideal for low-pH processes such as alcoholic fermentation, vinegar production, soy sauce brewing, flavor manufacturing, tobacco processing and leather treatments.
Key Features & Benefits
- High enzyme activity: 100,000 U/ml
- Effective pH range: 2.0–5.0
- Optimal temperature: 30–70°C
- Easy-to-dose liquid formulation
- Enhances fermentation, protein hydrolysis and flavor release
Main Application Areas
1. Brewing
- Reduces viscosity, improves fermentation efficiency.
- Increases clarity by reducing protein haze.
2. Vinegar Production
- Boosts nitrogen availability and flavor-active compounds.
3. Soy Sauce & Fermented Seasonings
- Enhances umami through higher amino acid and peptide release.
4. Tobacco Processing
- Improves aroma release and flavor smoothness.
5. Leather Processing
- Aids in soaking, softening and non-collagen protein removal.
Mode of Action
The enzyme cleaves internal peptide bonds in protein molecules, producing soluble peptides and amino acids, improving digestibility, flavor precursor formation and reducing haze formation in beverages.
Typical Specifications
| Appearance | Dark brown liquid |
| Activity | 100,000 U/ml |
| Density | 1.05–1.20 g/ml |
| pH (25°C) | 3.0–5.0 |
| Working pH | 2.0–5.0 |
| Optimal Temp | 30–70°C |
| Formulation | Liquid |
Recommended Usage
- Recommended dosage: 0.01–1 kg/ton of raw material.
- Adjust based on substrate, temperature and pH.
- Add early in the process for best results.
- Avoid oxidizers and heavy metal ions.
Packaging & Storage
- 1 kg bottle (supplied in an industrial-grade plain bottle).
- Please note that the product image is for illustration purposes. Actual packaging may differ.
- Liquid products are supplied in industrial-grade plain bottles.
- Store cool, dry and protected from sunlight.
- Shelf life: 12 months unopened.
- Reseal tightly after opening.
Safety & Handling
As with all enzymes, prolonged exposure to aerosols or mist may cause sensitization. Handle withproper protective equipment and avoid inhalation or eye contact. Rinse thoroughly if accidental contact occurs.
