lactase

IPA: ɫˈækteɪs

(biochemistry, organic chemistry) A β-galactosidase enzyme that is involved in the hydrolysis of the disaccharide lactose into constituent galactose and glucose monomers.

Examples of "lactase" in Sentences

The loss of lactase is genetically regulated only.
Usually lactose intolerant means that the enzyme lactase is missing or in small quantities.
(Lactose intolerance has proven intractable because the lack of lactase is not reversible.)
Has anyone done any research on how much lactase is needed to balance out 1 gram of lactose?
[I] f babies aren't given milk after weaning, their intestines think lactase is no longer needed and intolerance is the result.
Those with celiac disease often become lactose intolerant because the disease affects the inner lining of the intestine where lactase is made.
But since I had years of being lactose intolerant before lactase pills came on the market, I can safely say that lactase is the closest equivalent to a wonder drug ever marketed.