label: carotene epsilon hydroxylase activity
label_lc: carotene epsilon hydroxylase activity
description: "Catalysis of the reaction: alpha-carotene + O2 + reduced [NADPH--hemoprotein reductase] = alpha-cryptoxanthin + H(+) + H2O + oxidized [NADPH--hemoprotein reductase]. Zeinoxanthin may also be used as the substrate, in which case lutein is produced."