What does dextranase mean?
Dextranase is a specialized enzyme that breaks down dextran, a polysaccharide composed of glucose units linked mainly by α-1,6 glycosidic bonds. By catalysing the hydrolysis of those bonds, the enzyme produces smaller carbohydrates that can be more readily analysed or metabolized. Dextranase occurs in some microorganisms capable of using dextran as a carbon source and is also studied for applications in carbohydrate chemistry and biotechnology. In technical literature, it may also be called dextran glucanohydrolase or dextran 1,6-glucosidase. The word should not be confused with dextran itself: dextran is the substance being broken down, while dextranase is the biological catalyst that performs the reaction. Although dextranase has a recognizable construction ending in the enzyme suffix “-ase,” it is primarily a noun rather than a common English verb.
nounA glucan-hydrolyzing enzyme that breaks down dextran by cleaving α-1,6 glycosidic bonds in the polysaccharide.
- An enzyme that catalyses the hydrolysis of dextran, principally by cleaving α-1,6 glycosidic linkages.
"The laboratory used dextranase to break down dextran before measuring the released glucose."
"Adding dextranase to the solution caused the dextran to break down into smaller carbohydrates."
"The researchers measured dextranase activity in cultures grown on dextran-containing medium."
The plural is used when referring to different dextranase enzymes, samples, preparations, or sources.
"The researchers compared the properties of two dextranases from different bacterial strains."
Dextranase acts like molecular scissors, cutting dextran's α-1,6 glycosidic bonds into simpler sugars.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does dextranase come from?
The name was formed by joining dextran to the biochemical suffix “-ase,” which is used to identify enzymes. Dextran in turn was named through dextrin, whose dextr- element is associated with Latin dexter, meaning “right.” The suffix “-ase” reflects the word's early biochemical naming convention and distinguishes the enzyme from its carbohydrate substrate.
How dextranase is actually used
This is a specialized biochemical term used in enzymology, microbiology, biotechnology, and carbohydrate research. It is normally written as one word and is uncommon outside technical contexts.
Easily confused with dextranase
Dextran is the glucose polysaccharide substrate, whereas dextranase is the enzyme that hydrolyses it.