Supplier: Merck

Cellulase (from Aspergillus niger)

Supplier: Merck

Bovine Trypsin (from Pancreas)

Supplier: Merck

Horseradish peroxidase, Typ VI-A

Supplier: Merck

Chicken lysozyme (Muramidase) (from egg white)

Supplier: Merck

Xanthine oxidase from bovine milk, Grade I.

Supplier: Merck

Catalase acts as a natural antioxidant to study the roles of reactive oxygen species in gene expression and apoptosis. Used to protect against oxidative damage to proteins, lipids, and nucleic acids.

Supplier: Merck

Bromelain from pineapple stem has been used as a positive control in sodium dodecyl sulphate. It has also been used as a Azocasein substrate for the determination of proteolytic activity.

Supplier: Merck

Aldehyde dehydrogenase from baker′s yeast catalyses the reduction of pyridine nucleotides by several aldehydes. It catalyses the oxidation of a wide range of substrates, such as acetaldehyde, formaldehyde, propionaldehyde, n-butylaldehyde, isobutylaldehyde, n-valeraldehyde, caproaldehyde, benzaldehyde, glycoaldehyde, D-glyceraldehyde, malonic semialdehyde, and succinic aldehyde. The enzyme has been used to study the production of ethanol and isobutanol.

Supplier: Merck

Bovine L-lactate dehydrogenase Typ III (from Heart)

Supplier: Merck

Lyticase hydrolyzes poly-β(1→3)-glucose such as yeast cell wall glucan.

Supplier: Merck

α-Chymotrypsin is a serine peptidase and has 241 amino acid residues contained in three polypeptide chains (A chain-13 residues, B chain-131 residues, and C chain-97 residues) linked by disulfide bridges. Molecular weight of this enzyme is found to be 25 kDa. Its pI is 8,75. It selectively hydrolyses peptide bonds on the C-terminal side of tyrosine, phenylalanine, tryptophan, and leucine. Ca²⁺ activates and stabilizes the enzyme. The enzyme is inhibited by diisopropyl fluorophosphate (DFP), phenylmethanesulfonyl fluoride (PMSF), N-p-tosyl-L-phenylalanine chloromethyl ketone (TPCK), chymostatin, aprotinin, α1-antitrypsin, α2-macroglobulin, 10 mM Cu²⁺ and Hg²⁺.A serine protease that hydrolyzes peptide bonds with aromatic or large hydrophobic side chains (Tyr, Trp, Phe, Met, Leu) on the carboxyl end of the bond.

Supplier: Merck

Triosephosphate isomerase has been used in a study to assess changes in cardiac energy metabolic pathways in overweight rats fed a high-fat diet.

Supplier: Merck

α-Amylase solution is used in total dietary fiber assay.

Supplier: Merck

Alcohol oxidase is from Pichia pastoris used to study protein translocation into peroxisomes. Also used for the bacterial expression and immunological verification of Hv-p68 cDNA clones.

Supplier: Merck

Chymotrypsin (Chy) is a serine protease. It corresponds to a molecular weight of 25,7 kDa and is widely used in pharmaceutical industry.It is synthesized in pancreas from chymotrypsinogen and require calcium for this conversion.α-Chymotrypsin from bovine pancreas (bovine pancreatic α-chymotrypsin, CHT) is an enzyme protein.The influence of varying concentrations of organic solvents like ethanol, 1,4-dioxane and acetonitrile on CHT has been reported.

Supplier: Merck

Cellulase from Trichoderma reesei is produced by submerged fermentation of a selected strain of the fungus Trichoderma reesei and catalyzes the breakdown of cellulose into glucose, cellobiose, and higher glucose polymers. It corresponds to a molecular mass of 68 kDa with optimum pH and temperature of 6 and 52 °C, respectively.

Supplier: Merck

Chitosanase from Streptomyces griseus has been used in a study to assess the effect of chitin sources on production of chitinase and chitosanase.

Supplier: Merck

Laccase catalyses the oxidation of phenol containing compounds, including lignin, through the reduction of oxygen to water. The presence of mediators will allow the oxidation of non-phenlic compounds as well. The primary function of laccase is to degrade lignin in fungi.

Supplier: Merck

Lysosyme from chicken egg white has been used for the extraction of genomic DNA from bacterial cells. It has been used as an external standard for MALDI-TOF (matrix assisted laser desorption ionisation-time of flight) mass analysis.Enzyme breaks down the cell walls of bacteria; used to prepare spheroplasts.

Supplier: Merck

Lysozyme is abundantly found in animal and plant kingdoms. It is a natural food preservative and also found to be present in specific bacterial cell walls. Lysozyme is usually present in tears, milk, urine and saliva.Enzyme breaks down the cell walls of bacteria; used to prepare spheroplasts.

Supplier: Merck

Cellulase from Sigma has been used to degrade cello-oligosaccharides into glucose; to study the biodegradability of bioabsorbable bacterial cellulose (BBC) material. Cellulase from Trichoderma reesei has been used in a study to assess the differential regulation of the cellulase transcription factors XYR1, ACE2, and ACE. Cellulase from Trichoderma reesei has also been used in a study to investigate the liquefaction of hydrothermally pretreated wheat straw at high-solids content.

Supplier: Merck

Lysozyme hydrolyzes β(1→4) linkages between N-acetylmuramic acid and N-acetyl-D-glucosamine residues in peptidoglycan and between N-acetyl-D-glucosamine residues in chitodextrin. Gram-positive cells are quite susceptible to this hydrolysis as their cell walls have a high proportion of peptidoglycan. Gram-negative bacteria are less susceptible due to the presence of an outer membrane and a lower proportion of peptidoglycan. However, these cells may be hydrolyzed in the presence of EDTA that chelates metal ions in the outer bacterial membrane.The enzyme is active over a broad pH range (6,0 to 9,0). At pH 6,2, maximal activity is observed over a wider range of ionic strengths (0,02 to 0,100 M) than at pH 9,2 (0,01 to 0,06 M).

Supplier: Merck

Bromelain from pineapple stem has been used to evaluate the aqueous micellar two-phase systems composed of ionic liquids as co-surfactants, as a positive control in sodium dodecyl sulfate (SDS) / polyacrylamide gel electrophoresis (PAGE) and in cells proliferation assay, to study its potential analgesic effect and to evaluate its hydrolysing effects on proenkephalin (PENK)-derived peptides containing enkephalin sequences.

Supplier: LGC Standards PROMOCHEM

Cellulase

Supplier: Thermo Fisher Scientific

Pancreatin

Supplier: LGC Standards PROMOCHEM

Trypsin

Supplier: MEGAZYME

endo-1,3-β-D-Glucanase is isolated from Trichoderma species. These are used in carbohydrate and biofuels research, biochemical enzyme assays and in vitro diagnostic analysis.

Supplier: MEGAZYME

This purified fructanase mixture is used for the determination of fructn (liquid), in research, biochemical enzyme assays and in vitro diagnostic analysis.

Supplier: LGC Standards PROMOCHEM

Pepsin

Supplier: MEGAZYME

Invertase