Butyric acid production using untreated algal biomass

Title
Butyric acid production using untreated algal biomass
Authors
오현주김세일오민규우한민엄영순
Issue Date
2013-10
Publisher
한국생물공학회
Abstract
The butyrate-producing enrichment culture using untreated brown algae (Laminaria japonica) was established. The tidal flat sediment was used as an inoculum for the enrichment culture and the microbial structure of the enrichment culture was investigated using pyrosequencing. Although the microbial community was changed very dramatically, Vibrio spp. or Clostridium spp. were dominant genera. The relationship between microbial community and fermentation products suggested that the brown algae were initially degraded by Vibrio spp. and butyrate was produced from degraded algae by Clostridium spp. To investigate utilization of brown algae by Clostridium alone, 13 C. tyrobutyricum strains were cultivated with untreated brown algae as sole carbon source. Comparing butyrate production of the enrichment culture with that of pure culture, the enrichment culture produced more butyrate (4 g/L) than pure culture of C. tyrobutyricum (0.2 ~ 1.8 g/L), indicating that mixed culture from tidal flat sediments produced butyric acid from untreated algal biomass more efficiently than pure culture probably because of microbial interaction between Vibrio spp. and Clostridium spp. in mixed culture
URI
http://pubs.kist.re.kr/handle/201004/46042
Appears in Collections:
KIST Publication > Conference Paper
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