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C1184

Cellulase from Aspergillus niger

greener alternative

powder, ≥0.3 units/mg solid

Synonyme(s) :

1,4-(1,3:1,4)-β-D-Glucan 4-glucanohydrolase

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A propos de cet article

Numéro CAS:
UNSPSC Code:
12352204
NACRES:
NA.54
EC Number:
232-734-4
MDL number:
Numéro CE :
eCl@ss:
32160410
Specific activity:
≥0.3 units/mg solid
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form

powder

Quality Segment

specific activity

≥0.3 units/mg solid

greener alternative product characteristics

Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.

sustainability

Greener Alternative Product

greener alternative category

storage temp.

2-8°C

General description

The FDA recognizes cellulase from A. niger as GRAS (Generally Regarded As Safe) if non-pathogenic and non-toxigenic strains, as well as current good manufacturing practices, are used in production.
We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product has been used as enzyme for alternative energy. For more information see the Enzymes for Alternative Energy Research.

Cellulase belongs to the family of glycoside hydrolase, which is secreted by various cellulolytic microorganisms.

Application

The enzyme has also been approved as a secondary direct food additive as an aid in clam and shrimp processing.[1]
Cellulase from Sigma has been used to study the ability of several of its possible substrates, cellulose, Avicel PH-101, and filter paper, to protect enzyme activity during monogastric diegstion in animal and avian digestive tracts.

Biochem/physiol Actions

Cellulase from Aspergillus niger catalyzes the hydrolysis of endo-1,4-β-D-glycosidic linkages in cellulose, lichenin, barley glucan, and the cellooligosaccharides cellotriose to cellohexaose. It does not cleave cellobiose or p-nitrophenyl-β-D-glucoside. This enzyme will also cleave intact glycosaminoglycan from a core peptide by hydrolyzing the xylosyl serine linkage.

Other Notes

One unit will liberate 1.0 μmole of glucose from cellulose in one hr at pH 5.0 at 37 °C (2 hr incubation time).

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Cet article
22178C8546C0615
specific activity

≥0.3 units/mg solid

specific activity

~0.8 U/mg

specific activity

≥1 unit/mg solid

specific activity

≥5,000 units/g solid

form

powder

form

powder

form

lyophilized powder

form

powder

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

2-8°C

Quality Level

200

Quality Level

100

Quality Level

200

Quality Level

200

greener alternative category

, Enabling

greener alternative category

-

greener alternative category

Enabling,

greener alternative category

Enabling,

sustainability

Greener Alternative Product

sustainability

-

sustainability

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sustainability

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pictograms

Health hazard

signalword

Danger

hcodes

Hazard Classifications

Resp. Sens. 1

Classe de stockage

11 - Combustible Solids

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Faceshields, Gloves



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Questions

1–7 of 7 Questions  
  1. What is the optimum temperature of this enzyme?

    1 answer
    1. This item is tested in-house at the following conditions: T = 37 °C, pH = 5.0.
      Other sources have found the optimum temperature range for this enzyme to be 40~60 °C.

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  2. Can you please provide the percent purity of the product?

    1 answer
    1. The product is offered on the basis of activity. The purity has not been determined.

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  3. Does product C1184 have hemicellulase activity, such as xylanase? I am looking for cellulase without hemicellulase activity.

    1 answer
    1. Hemicellulase activity of this product has not been tested.

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  4. Are there any additives to Cellulase, Product C1184, in addition to the enzyme itself?

    1 answer
    1. Per information from our supplier, maltodextrin is an extender in this product.  Maltodextrin can vary in glucose chain lengths of 2-12. There can also be some free glucose in the product. Either sorbitol or propylene glycol is added to the product as a stabilizer during processing. These components may be "flashed off" during processing, but some small amount may still be present.

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  5. What is the Department of Transportation shipping information for this product?

    1 answer
    1. Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.

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  6. What is the molecular weight of Product C1184, Cellulase from Aspergillus niger?

    1 answer
    1. The molecular weight is 26,000 Daltons.

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  7. What is the solution stability of Cellulase, Product C1184?

    1 answer
    1. Sigma-Aldrich has not determined the solution stability for this product.  However, it is reported in Methods in Enzymology, 160, 264 (1988) that cellulase from Aspergillus niger is "completely stable over the range of pH 5.0-8.0 at 4°C for 24 hours and retains about 50% of its original activity after heating at 70°C for 10 minutes.  The enzyme is completely inactivated by heating at 80°C for 10 minutes".

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