• WordNet 3.6
    • n invertase an enzyme that catalyzes the hydrolysis of sucrose into glucose and fructose
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Webster's Revised Unabridged Dictionary
    • n Invertase (Chem) An enzyme capable of effecting the inversion of cane suger, producing invert sugar. It is found in many plants and in the intestines of animals.
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Century Dictionary and Cyclopedia
    • n invertase A ferment which inverts higher sugars to lower forms; specifically, a ferment which inverts cane-sugar to dextrose and levulose. Invertase occurs in many yeasts and other fungi, in pollen-grains, in the beet-root, in many of the higher plants, and in some of the animal digestive juices. Also invertin. The specific ferment is also termed sucrase.
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In literature:

In fermenting +- Invertase Inverts cane sugar.
"Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3" by Various
When hydrolyzed by acids, or by the enzyme "invertase," it yields a mixture of equal quantities of glucose and fructose.
"The Chemistry of Plant Life" by Roscoe Wilfred Thatcher

In news:

Strongly reducing the activity of a single enzyme, the vacuolar acid invertase, allowed for low temperature storage of potato tubers without an accumulation of glucose and fructose.