Degradation of raw corn stover powder (RCSP) by an enriched microbial consortium and its community structure

Yujie Feng, Yanling Yu, Xin Wang, Youpeng Qu, Dongmei Li, Weihua He, Byung Hong Kim

Research output: Contribution to journalArticle

46 Citations (Scopus)

Abstract

A microbial consortium with a high cellulolytic activity was enriched to degrade raw corn stover powder (RCSP). This consortium degraded more than 51% of non-sterilized RCSP or 81% of non-sterilized filter paper within 8. days at 40 °C under facultative anoxic conditions. Cellulosome-like structures were observed in scanning electron micrographs (SEM) of RCSP degradation residue. The high cellulolytic activity was maintained during 40 subcultures in a medium containing cellulosic substrate. Small ribosomal gene sequence analyses showed the consortium contains uncultured and cultured bacteria with or without cellulolytic activities. Among these bacteria, some are anaerobic others aerobic. Analyses of the culture filtrate showed a typical anoxic polysaccharide fermentation during the culturing process. Reducing sugar concentration increased at early stage followed by various fermentation products that were consumed at the late stage.

Original languageEnglish
Pages (from-to)742-747
Number of pages6
JournalBioresource Technology
Volume102
Issue number2
DOIs
Publication statusPublished - Jan 2011
Externally publishedYes

Fingerprint

Powders
community structure
maize
Degradation
Fermentation
degradation
fermentation
Bacteria
bacterium
Polysaccharides
polysaccharide
Sugars
anoxic conditions
sugar
Genes
filter
Scanning
substrate
electron
Electrons

Keywords

  • Enrichment
  • Lignocellulosic biomass degradation
  • Microbial consortium
  • Raw corn stover

ASJC Scopus subject areas

  • Bioengineering
  • Environmental Engineering
  • Waste Management and Disposal

Cite this

Degradation of raw corn stover powder (RCSP) by an enriched microbial consortium and its community structure. / Feng, Yujie; Yu, Yanling; Wang, Xin; Qu, Youpeng; Li, Dongmei; He, Weihua; Kim, Byung Hong.

In: Bioresource Technology, Vol. 102, No. 2, 01.2011, p. 742-747.

Research output: Contribution to journalArticle

Feng, Yujie ; Yu, Yanling ; Wang, Xin ; Qu, Youpeng ; Li, Dongmei ; He, Weihua ; Kim, Byung Hong. / Degradation of raw corn stover powder (RCSP) by an enriched microbial consortium and its community structure. In: Bioresource Technology. 2011 ; Vol. 102, No. 2. pp. 742-747.
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