Endogenous lycopene improves ethanol production under acetic acid stress in Saccharomyces cerevisiae.

ABSTRACT:

Background

Acetic acid, generated from the pretreatment of lignocellulosic biomass, is a significant obstacle for lignocellulosic ethanol production. Reactive oxidative species (ROS)-mediated cell damage is one of important issues caused by acetic acid. It has been reported that decreasing ROS level can improve the acetic acid tolerance of Saccharomyces cerevisiae.

Results

Lycopene is known as an antioxidant. In the study, we investigated effects of endogenous lycopene on cell growth and ethanol production of S. cerevisiae in acetic acid media. By accumulating endogenous lycopene during the aerobic fermentation of the seed stage, the intracellular ROS level of strain decreased to 1.4% of that of the control strain during ethanol fermentation. In the ethanol fer

SUBMITTER: Pan S 

PROVIDER: S-EPMC5891932 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature