Acidic Protease

Acidic Protease
Overview

This product is made from Aspergillus Niger using modern biological technology to produce high-tech products. It can be in the pH value of acid hydrolysis conditions of protein into amino acids and peptides. It can be used in alcohol fermentation, food additives, feed and skin softening.

Widely used in alcohol, liquor, beer, wine, butter and soy sauce production, can clarify the fermented liquid and mature mash. Application in feed industry.

Quality index

Appearance: Yellow brown powder

The enzyme activity of u/g (ML): 50000-60000

pH scope: 2.0-5.0, the optimum pH value was 2.5-3.5

Temperature range: 30-50 degrees Celsius, the optimum temperature is 40 degrees Celsius, more than 50degrees Celsius severe inactivation

The effect of metal ions on the enzyme activity by calcium, magnesium ions: Activation, copper, mercury, lead ion suppression

Enzyme activity definition (GBT 23527-2009): 1g enzyme powder or 1ml enzyme solution at 40 degrees Celsius, pH3.0 conditions, the quantity of enzyme hydrolyzed casein produced 1 minutes 1ug tyrosine enzyme activity as a unit, with u/g (ML) said.

The application process (adjusted according to test)

1 Liquor industry: The product is made of production of alcohol and liquor industry using starch as raw materials, improve liquor yield 0.25% wine, improve the fermentation speed.

2 The food industry: Food for starch modified, improve food flavor, quality improvement, because it can increase the content of amino acid.

3 Beer production: Can effectively block the diacetyl, shorten beer maturity.

4 High protein feed additive decomposition, improve the utilization rate of feed.

5 Fur soften: Dyeing rate increases, feel full, increase the fur luster.

The initial recommendation the adding of starting from the one millionth mash. Recommended use: First the acid protease by 1: 20 dissolved in 35-40 degrees Celsius in the warm water, soak activated 1 hours, every 15 minutes during stirring once.

The use of methods

1 The amount of acid protease

In the production of corn ethanol, dosage of 10-16U/g, depending on the material and the process conditions. The general condition, per ton of raw material 50000 units of acid protease was 280 G. In the feed industry, the food industry, the dosage is 5-10U/g. The amount of soy sauce brewing beer manufacturing 25U/g, 5U/g.

2 Usage

A. alcohol batch fermentation process: In the fermentation tank feeding 1/3,
Adding acid protease activated time, dosage by depending on how much each tank material.

B. Ontinuous fermentation of alcohol in the fermentation tank B: Continuous saccharification mash feed inlet flow, flow rate required by the feed rate and.

C. Liquor production of solid fermentation of fermented grains: Steamed after cooling, with yeast in raw material and adding amount, disposable, but to stir.

D. In the production of solid fermentation of yeast or to produce single cell protein feed, feed grains can be steamed down to 30 degrees Celsius, per gram of raw material and adding 20 units, according to the number of raw materials, calculate good protease add pure water, dissolved with strain join feed grains, uniform mixing, into the tank fermentation.

Packaging, storage and shelf life

1 Packages: Solid products of 20kg/ bag.

2 Storage: Should be stored in a dry, ventilated, no pollution, avoid high temperature storage.

3 Shelf life of solid products at 15degrees Celsius for 3 months.