Biodegradation of laminaran, a main component of brown algae, was studied for reutilization of algae waste. Potential five bacteria were isolated newly, and their ability to degrade laminaran was carried out in a 100 ml flask with 20 ml of working volume. The inoculum size was 0.2% (w/v) and 10 g/L of laminaran was used. The reaction was executed at 37℃ and 180 rpm for 15 days. HPLC analyses indicated that few oligosaccharides other than glucose were also produced from laminaran. pH decreased up to 3.5 as laminaran was degraded. Cells reached a stationary phase after 9 days. At this time, 6.30 and 4.21 g/L of total reducing sugars and glucose were obtained, respectively. In ethanol fermentation using yeast, 1.88 g/L of ethanol was obtained from the 9-day sample.
키워드
BiodegradationLaminaranSeaweed
저자
Eun Jung KIM [ Dept. of Biotechnology, Pukyong National University. ]
Joong Kyun KIM [ Dept. of Biotechnology, Pukyong National University. ]
한국생물공학회 [The Korean Society for Biotechnology and Bioengineering]
설립연도
1984
분야
공학>생물공학
소개
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