Food Grade Acid Protease Liquid for Brewing, Soy Sauce & Alcohol Production - Thermostable Liquid Enzyme for Protein Hydrolysis

Product Description

Food Grade Acid Protease Liquid for Brewing, Soy Sauce & Alcohol Production

Thermostable Liquid Enzyme for Protein Hydrolysis, produced by submerged fermentation of Aspergillus niger followed by purification and formulation.

Introduction

Acid Protease (APRL) catalyzes the hydrolysis of protein under acid conditions. The main applications cover alcohol fermentation, leather softening, wool dyeing, juice clarification, and feed additives.

⚙️ Mechanism

Acid protease (APRL) degrades protein and improves protein’s dispersibility, solubility, palatability, and digestibility by breaking down peptide bonds.

📋 Product Standard

The product strictly complies with national standard GB1886.174.

Product Index Specification

No. ITEMS INDEX
1 Bulk density/(g/ml) 1.05-1.20
2 pH/(25℃) 3.0-5.0
3 Lead/(mg/kg) ≤5.0
4 Arsenic/(mg/kg) ≤3.0
5 Total viable count/(CFU/mL) ≤50000
6 Coliform Bacteria/(CFU/mL) ≤30
7 Escherichia coli <10 (CFU/mL) or ≤3.0 (MPN/mL)
8 Salmonella/(25mL) Not Detected

Application Industries

🧪 Fuel Ethanol Industry

Improves alcohol yield by hydrolyzing proteins to generate more free α-amino nitrogen, promoting yeast growth and alcohol fermentation, increasing ethanol yield and reducing fermentation time.

🍞 Food Industry

Enhances sensory properties of bread and cake. Improves flavor and overall quality in sausage. Boosts amino acid content in soy sauce and prevents cold haze in beer.

🍺 Brewing Industry

Checks the formation of diacetyl and shortens beer maturation time.

🌾 Feed Industry

Improves digestibility or biological value of feed while reducing production cost.

🧥 Leather Industry

Makes fur more shiny and improves fur dyeing quality.

Recommended Dosage & Storage

Brewing Industry: 1–2 kg per ton of raw material.
Alcohol Production: 2–3 kg per ton of raw material.
Protein Processing: 3–5 kg per ton of raw material.
Inactivation: 90°C for 20 minutes.
Package: 1kg; 25kg/drum.
Storage: Store in cool (<25°C), dry, ventilated conditions; avoid direct light.
Shelf life: 12 months in unopened containers.

Note: Actual dosage may vary based on raw materials and processes. Conduct trials for optimization.

⚠️ Safety First

As enzymes are proteins, inhalation of dust or aerosols may cause allergic reactions. Prolonged exposure can irritate skin, eyes, and mucous membranes. Use protective clothing, gloves, and eye/face gear.

Our Services

  • Any inquiries will be replied within 12 hours.
  • Dedication to quality, supply & service.
  • Strictly on selecting raw materials.
  • OEM/ODM Available.
  • Reasonable & competitive price, fast lead time.
  • Sample is available for your evaluation & Formulation development.
  • Faster delivery: Sample order in stock and 3-7 days for bulk production.
  • We have strong cooperation with DHL, TNT, UPS, FEDEX, EMS, or you can choose your own shipping forwarder.

Frequently Asked Questions

💡 What is the main source of this Acid Protease?

This acid protease is a food-grade liquid enzyme produced by submerged fermentation of Aspergillus niger followed by professional purification and formulation processes.

💡 Under what conditions does this enzyme perform best?

It is highly effective under acidic conditions, maintaining optimal activity within a pH range of 3.0 to 5.0 at ambient and typical processing temperatures.

💡 How does Acid Protease benefit the ethanol and brewing industries?

In ethanol and brewing industries, it hydrolyzes proteins to generate free alpha-amino nitrogen. This promotes yeast growth, shortens fermentation time, checks diacetyl formation, and prevents beer cold haze.

💡 What is the recommended storage temperature and shelf life?

It should be stored in cool (below 25°C), dry, and well-ventilated conditions away from direct sunlight. The product has a shelf life of 12 months in its original unopened packaging.

💡 What is the thermal inactivation condition of the enzyme?

The enzyme can be completely inactivated by exposing it to a temperature of 90°C for 20 minutes.

💡 Can samples be provided for trials?

Yes, samples are readily available for evaluation, lab trials, and formulation development to optimize dosage before bulk production.

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