2013
DOI: 10.7464/ksct.2013.19.2.148
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Volatile Fatty Acid Production from Saccharina japonica Extracts by Anaerobic Fermentation: Evaluation of Various Environmental Parameters for VFAs Productivity

Abstract: 요 약 본 연구에서는 거대 갈조류 대표종인 다시마(Saccharina japonica)로부터 물리화학적 전처리 방법, 미생물 접종비율, 다시마 추출물의 농도 및 pH 조건에 따른 휘발성 유기산(volatile fatty acids, VFAs) 생산 가능성 확인과 생산 효율을 평가하고자 하 였다. 물리화학적 전처리 방법에 따른 휘발성 유기산의 최대 농도는 황산, 아임계수, 지질 추출 후 아임계수 전처리 순으로 나타났다. 황산 전처리 방법에서 미생물 접종비율(유효용적(WV)/미생물 부피(M) = 10~30), pH (6.0~7.0) 및 다시마 추출물 의 농도(18.0~72.0 g/L)의 혐기성 발효 조건에 따른 휘발성 유기산 생성 농도에 미치는 영향을 확인한 결과, 발효 온도 35 ℃, 미생물 접종비율 15, pH 7.0, 발효시간 372시간에서 다시마 추출물의 농도가 18.0, 36.0, 54.0, 72.0 g/L일 때, 휘발성 유기 산의 최대 농도가 각각 9.8, 13.9, 18.6, 22.3 g/L로 확인되… Show more

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“…The raw material for VFAs’ recovery was the fermentation product of a diluted alginate solution. Brown alginate (25 g) was dried, ground, and placed in a 500 mL reactor with 225 mL of 3% sulfuric acid solution, and maintained at 120 °C for 250 min [12]. The acid-pretreated solution was neutralized with calcium carbonate and filtered to yield a clear solution.…”
Section: Methodsmentioning
confidence: 99%
“…The raw material for VFAs’ recovery was the fermentation product of a diluted alginate solution. Brown alginate (25 g) was dried, ground, and placed in a 500 mL reactor with 225 mL of 3% sulfuric acid solution, and maintained at 120 °C for 250 min [12]. The acid-pretreated solution was neutralized with calcium carbonate and filtered to yield a clear solution.…”
Section: Methodsmentioning
confidence: 99%