(âÂÂ)-menthol monooxygenase () is an enzyme that catalyzes the chemical reaction
The four substrates of this enzyme are (âÂÂ)-menthol, reduced nicotinamide adenine dinucleotide phosphate (NADPH), oxygen, and a proton. Its products are p-menthane-3,8-diol, oxidised NADP, and water.
This enzyme is an oxidoreductase, acting on paired donors, with molecular oxygen as oxidant and incorporating one of its atoms. The systematic name of this enzyme class is (âÂÂ)-menthol,NADPH:oxygen oxidoreductase (8-hydroxylating). This enzyme is also called l-menthol monooxygenase.
Use of (âÂÂ)-menthol monooxygenase has been explored by several companies including Procter & Gamble for cleaning products.