“lactase”的英文意思_释义_用法

单词

lactase

释义

lactase Biochem.|ˈlækteɪz, -s|
[a. F. lactase (M. W. Beijerinck 1889, in Arch. néerl. d. Sci. exactes et nat. XXIII. 434), f. lact-ose lactose: see -ase.]
Any enzyme which catalyses the hydrolysis of lactose to glucose and galactose.
1891Jrnl. R. Microsc. Soc. 374 The fermentation [of milk sugar] is effected by a diastase distinct from invertin, which he calls lactase.1906Jrnl. Physiol. XXXV. 28 The conclusion is from these experiments that lactase is distributed fairly equally through the whole of the mucous membrane of the intestine.1959Jenness & Patton Princ. Dairy Chem. iii. 80 There are at least three significant origins of lactase enzymes which may be used for the hydrolysis of lactose. These are: (a) certain species of yeasts..; (b) the intestinal mucosa of mammals..; and (c) β-galactosidase from almonds.

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