Butyric acid production from softwood hydrolysate by acetate-consuming Clostridium sp. S1 with high butyric acid yield and selectivity

Minsun Kim, Ki Yeon Kim, Kyung Min Lee, Sung Hun Youn, Sun Mi Lee, Han Min Woo, Min-Kyu Oh, Youngsoon Um

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

The aim of this work was to study the butyric acid production from softwood hydrolysate by acetate-consuming Clostridium sp. S1. Results showed that Clostridium sp. S1 produced butyric acid by simultaneously utilizing glucose and mannose in softwood hydrolysate and, more remarkably, it consumed acetic acid in hydrolysate. Clostridium sp. S1 utilized each of glucose, mannose, and xylose as well as mixed sugars simultaneously with partially repressed xylose utilization. When softwood (Japanese larch) hydrolysate containing glucose and mannose as the main sugars was used, Clostridium sp. S1 produced 21.17 g/L butyric acid with the yield of 0.47 g/g sugar and the selectivity of 1 (g butyric acid/g total acids) owing to the consumption of acetic acid in hydrolysate. The results demonstrate potential of Clostridium sp. S1 to produce butyric acid selectively and effectively from hydrolysate not only by utilizing mixed sugars simultaneously but also by converting acetic acid to butyric acid.

Original languageEnglish
Pages (from-to)1208-1214
Number of pages7
JournalBioresource Technology
Volume218
DOIs
Publication statusPublished - 2016 Oct 1

Keywords

  • Acetic acid
  • Butyric acid fermentation
  • Clostridium sp. S1
  • Softwood hydrolysate

ASJC Scopus subject areas

  • Bioengineering
  • Environmental Engineering
  • Waste Management and Disposal

Fingerprint Dive into the research topics of 'Butyric acid production from softwood hydrolysate by acetate-consuming Clostridium sp. S1 with high butyric acid yield and selectivity'. Together they form a unique fingerprint.

  • Cite this