Butyric acid production using Bacillus coagulans isolated from activated sludge

Title
Butyric acid production using Bacillus coagulans isolated from activated sludge
Authors
이경민김기연배재상엄영순상병인
Keywords
butyric acid; B. coagulans; galactose
Issue Date
2010-10
Publisher
2010 한국생물공학회 추계학술발표대회 및 국제심포지움
Abstract
Butyric acid producing bacteria have important role in medicinal, food, pharmaceutical and chemical industries. In this study, an anaerobic microorganism utilizing galactose as a sole carbon source was isolated from activated sludge, and that is capable of producing butyric acid. Based on genotypic investigation, the isolated microoranism is identified as Bacillus coagulans. Almost of Bacillus coagulans species was well known as a lactic acid producer, not a butyric acid producer. Interestingly, the isolated Bacillus coagulans can produce butyric acid, but not lactic acid. The optimal growth of the isolated Bacillus coagulans occurred 40℃ and pH 5.5 and the final concentration and yield of butyric acid was 17.43 g L-1 and 0.44 g g-1 in batch culture. Further study is required to investigate the utilization potential of seaweed hydrolysates by the isolated strain.
URI
http://pubs.kist.re.kr/handle/201004/38022
Appears in Collections:
KIST Publication > Conference Paper
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