title: Volatile fatty acids production from marine macroalgae by anaerobic fermentation.
abstract: 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 15.2g/L was obtained from 50 g/L of L. japonica in three days at 35°C 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.
authors.affiliation: Department of Chemical and Bio-Engineering, Gachon University, Seongnam, Gyeonggi-do, South Korea.
authors.forename: Thi Nhan
authors.initials: TN
authors.lastname: Pham
authors.forename: Woo Joong
authors.initials: WJ
authors.lastname: Nam
authors.forename: Young Joong
authors.initials: YJ
authors.lastname: Jeon
authors.forename: Hyon Hee
authors.initials: HH
authors.lastname: Yoon
mesh_terms: D000693:Anaerobiosis; D002851:Chromatography, High Pressure Liquid; D005227:Fatty Acids / Q000096:biosynthesis*; D005285:Fermentation; D008386:Marine Biology; D058086:Microalgae / Q000378:metabolism*; D055549:Volatile Organic Compounds / Q000378:metabolism*; D062065:Wastewater
chemical_list: D005227:Fatty Acids; D055549:Volatile Organic Compounds; D062065:Wastewater