Main Reaction: Acetaldehyde + NADH >> NAD+ + Ethanol

Reference: PubMed ID: 24105024
Authors: Wei N, Quarterman J, Kim SR, Cate JH, Jin YS
Title: Enhanced biofuel production through coupled acetic acid and xylose consumption by engineered yeast.
Published: 2013

Acetaldehyde + NADH --> NAD + Ethanol