In enzymology, a (−)-menthol dehydrogenase (EC 1.1.1.207) is an enzyme that catalyzes the chemical reaction
- (−)-menthol + NADP+ (−)-menthone + NADPH + H+
Thus, the two substrates of this enzyme are (−)-menthol and NADP+, whereas its 3 products are (−)-menthone, NADPH, and H+.
This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-OH group of donor with NAD+ or NADP+ as acceptor. The systematic name of this enzyme class is (−)-menthol:NADP+ oxidoreductase. This enzyme is also called monoterpenoid dehydrogenase. This enzyme participates in monoterpenoid biosynthesis.