Efficient succinic acid production from high-sugar-content beverages by Actinobacillus succinogenes

Mariateresa Ferone*, Alessia Ercole, Francesca Raganati, Giuseppe Olivieri, Piero Salatino, Antonio Marzocchella

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

2 Citations (Scopus)

Abstract

This study presents the production of succinic acid (SA) by Actinobacillus succinogenes using high-sugar-content beverages (HSCBs) as feedstock. The aim of this study was the valorization of a by-product stream from the beverage industry for the production of an important building block chemical, such as SA. Three types of commercial beverages were investigated: fruit juices (pineapple and ace), syrups (almond), and soft drinks (cola and lemon). They contained mainly glucose, fructose, and sucrose at high concentration—between 50 and 1,000 g/L. The batch fermentation tests highlighted that A. succinogenes was able to grow on HSCBs supplemented with yeast extract, but also on the unsupplemented fruit juices. Indeed, the bacteria did not grow on the unsupplemented syrup and soft drinks because of the lack of indispensable nutrients. About 30–40 g/L of SA were obtained, depending on the type of HSCB, with yield ranging between 0.75 and 1.00 gSA/gS. The prehydrolysis step improved the fermentation performance: SA production was improved by 6–24%, depending on the HSCB, and sugar conversion was improved of about 30–50%.

Original languageEnglish
Article numbere2863
JournalBiotechnology Progress
Volume35
Issue number5
Early online date7 Jun 2019
DOIs
Publication statusPublished - Sep 2019

Keywords

  • Actinobacillus succinogenes
  • biorefinery
  • fermentation
  • high-content-sugar beverages
  • succinic acid

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