- the complex of enzymes obtained from yeast, also occurring in bacteria and other organisms, that acts in alcoholic fermentation and other forms of glycolysis.
Origin of zymase
1870–75; < French < Greek zȳ́m(ē) leaven + French -ase -ase
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for zymase
For the alcoholic fermentation of glucose by the zymase of yeast juice two substances are also necessary.The Nature of Animal Light
E. Newton Harvey
Hans von Euler-Chelpin isolated one part of zymase, which remains active even after heating its solution to the boiling point.
A comparison of the conditions of action of carboxylase and zymase has revealed several interesting points of difference.Alcoholic Fermentation
Although the action of zymase may be regarded as mechanical, the enzyme cannot be produced by any other than living protoplasm.
Such material is far more active than the zymase obtained originally by Buchner from the expressed juice of yeast-cells.
- a mixture of enzymes that is obtained as an extract from yeast and causes fermentation in sugars
- The enzyme complex in yeasts that catalyzes the breakdown of sugar into alcohol and carbon dioxide.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.