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22178

Sigma-Aldrich

Cellulase from Aspergillus niger

powder, off-white, ~0.8 U/mg

Synonym(s):

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

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About This Item

CAS Number:
Enzyme Commission number:
EC Number:
MDL number:
UNSPSC Code:
12352204
NACRES:
NA.54

biological source

Aspergillus niger

Quality Level

form

powder

specific activity

~0.8 U/mg

color

off-white

storage temp.

2-8°C

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General description

Cellulase is a member of glycoside hydrolase family and is produced by a number of cellulolytic microbes.

Application

Cellulase from Aspergillus niger has been used:
  • in the preparation of the standardized solution to determine absolute cellulase levels
  • in phosphate-citric acid buffer for activity assay
  • in non-starch polysaccharide degrading enzyme cocktail for in vitro hydrolysis of defatted rice bran and in the approach to improve the nutritive value of poultry feed

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.

Unit Definition

1 U corresponds to the amount of enzymes which liberates 1 μmol glucose from carboxymethylcellulose per minute at pH 5.0 and 37°C

pictograms

Health hazard

signalword

Danger

hcodes

Hazard Classifications

Resp. Sens. 1

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

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


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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M.A. Sawsan et al.
Zentralblatt Fur Mikrobiologie, 143, 55-55 (1988)
G. Okada
Methods in Enzymology, 160, 259-259 (1988)
María Dolores Ayala et al.
Animals : an open access journal from MDPI, 10(12) (2020-12-05)
A 90-d feeding trial was conducted in which five groups of gilthead seabream (11.96 g initial body weight) were fed with a microalgae-free diet (control group, C) or four diets containing the microalgae Nannochloropsis gaditana at two inclusion levels (2.5%
P. Toussaint et al.
Entropie, 23 (136), 8-8 (1987)
Helena Fernandes et al.
Bioresource technology, 281, 277-285 (2019-03-03)
The macroalgae aquaculture industry has grown up in the last years, and new applications for macroalgae should be considered. In this work, sequential biological treatments as solid-state fermentation (SSF) by Aspergillus ibericus and enzymatic hydrolysis (EH) were applied to washed

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