Main Reaction: Butyrylaldehyde + NADH >> NAD+ + Butanol

Reference: PubMed ID: 26907554
Authors: Wang J, Lin M, Xu M, Yang ST
Title: Anaerobic Fermentation for Production of Carboxylic Acids as Bulk Chemicals from Renewable Biomass.
Published: 2016

Butyrylaldehyde + NADH --> NAD + Butanol