Volatile fatty acids production from marine macroalgae by anaerobic fermentation

详细信息    查看全文

• 作者：Thi Nhan Pham ; Woo Joong Nam ; Young Joong Jeon ; Hyon Hee Yoon ; ^{hhyoon@kyungwon.ac.kr} ; ^{hhyoon@gachon.ac.kr}
• 关键词：Macroalgae ; Volatile fatty acids ; Anaerobic fermentation ; Laminaria japonica ; Pachymeniopsis elliptica
• 刊名：Bioresource Technology
• 出版年：2012
• 出版时间：November, 2012
• 年：2012
• 卷：124
• 期：Complete
• 页码：500-503
• 全文大小：407 K

文摘

Volatile fatty acids (VFAs) were produced from the marine macroalgae, Laminaria japonica, Pachymeniopsis elliptica, and Enteromorpha crinite by anaerobic fermentation using a microbial community derived from a municipal wastewater treatment plant. Methanogen inhibitor (iodoform), pH control, substrate concentration, and alkaline and thermal pretreatments affected VFA productivity. Acetic, propionic, and butyric acids were the main products. A maximum VFA concentration of 15.2 g/L was obtained from 50 g/L of L. japonica in three days at 35 ¡ãC and pH 6.5-7.0. Pretreatment with 0.5 N NaOH improved VFA productivity by 56 % compared to control. The result shows the applicability of marine macroalgae as biomass feedstock for the production of VFAs which can be converted to mixed alcohol fuels.