HEMICELLULASE

HEMICELLULASE Property

storage temp. 

-20°C

form 

powder

color 

Yellow to brown

Specific Activity

0.3-3.0unit/mg solid (using a β-galactose dehydrogenase system and locust bean gum as substrate)

EPA Substance Registry System

Hemicellulase (9025-56-3)

Safety

Hazard Codes 

Xn

Risk Statements 

42

Safety Statements 

22-24-36/37

WGK Germany 

3

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H334May cause allergy or asthma symptoms or breathing difficulties if inhaled

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P284Wear respiratory protection.

P501Dispose of contents/container to..…

HEMICELLULASE Chemical Properties,Usage,Production

Chemical Properties

Can constitute the plant cell membrane polysaccharides (except cellulose and pectin substances) plus water decomposition of various enzymes. The main role for the locust bean gum and coca bean gum and other polysaccharides such as β-1, 4-glucan bond hydrolysis into p-dextrin. The hemicellulase produced by three kinds of Aspergillus niger, the optimum pH value of 3.0, 5.0 and 5.5; at 30 ℃ to maintain 24h activity is still 100% of the pH range were 3.5 ~ 10, 2.5 ~ 6, 4 ~ 7; at pH 5.6 under the maintenance of 15min activity is still 100% of the temperature were 50 ~ C:, 60 ℃, 70 ℃. Nearly white to light gray amorphous powder or light gray to dark brown liquid. As a commodity can contain food grade diluent, carrier, stabilizer and preservative. Soluble in water, a few insoluble in ethanol, chloroform and ether.

Uses

Hemicellulase from Aspergillus niger has been used in enzyme digestions.

General Description

This product has been enhanced for energy efficiency and waste prevention when used in cellulosic ethanol research.

Biochem/physiol Actions

Hemicellulase is a group of enzymes that catalyzes the breakdown of heteropolysaccharides. It includes glucanases that act on glucan. Similarly, xylanases and mannanases breakdown xylan and mannan respectively. Hemicellulase is prevalent among various bacteria, fungi and plants.