Production of succinic acid through the fermentation of Actinobacillus succinogenes on the hydrolysate of Napier grass.

ABSTRACT:

Background

Napier grass biomass can be hydrolyzed mainly containing glucose and xylose after alkaline pretreatment and enzymatic hydrolysis. This biomass can be fermented using Actinobacillus succinogenes to produce succinic acid. The yield of succinic acid was 0.58 g/g. Because metabolizing xylose could produce more acetic acid, this yield of succinic acid was lower than that achieved using glucose as the sole carbon source.

Results

The addition of glycerol as a fermentation substrate to Napier grass hydrolysate increased the reducing power of the hydrolysate, which not only increased the production of succinic acid but also reduced the formation of undesirable acetic acid in bacterial cells. At a hydrolysate:glycerol ratio of 10:1, the succinic acid yield reached 0.65 g/g.

SUBMITTER: Lee JS 

PROVIDER: S-EPMC8767706 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature