title: Effect of food wastewater on biomass production by a green microalga Scenedesmus obliquus for bioenergy generation.
abstract: Effect of food wastewater (FW) on the biomass, lipid and carbohydrate production by a green microalga Scenedesmus obliquus cultivated in Bold's Basal Medium (BBM) was investigated. Different dilution ratios (0.5-10%) of BBM either with FW or salt solution (NaCl) or sea water (SW) were evaluated. S. obliquus showed the highest growth (0.41 g L(-1)), lipid productivity (13.3 mg L(-1) day L(-1)), carbohydrate productivity (14.7 mg L(-1) day L(-1)) and nutrient removal (38.9 mg TN L(-1) and 12.1 mg TP L(-1)) with 1% FW after 6 days of cultivation. The FW promoted algal autoflocculation due to formation of inorganic precipitates at an alkali pH. Fatty acid methyl ester analysis revealed that the palmitic and oleic acid contents were increased up to 8% with FW. Application of FW improved the growth, lipid/carbohydrate productivity and biomass recovery efficiency of S. obliquus, which can be exploited for cost effective production of microalgae biomass.
authors.affiliation: Environmental Remediation Research Group, Korea Institute of Science and Technology (KIST), Gangneung Institute, Gangneung 210-340, South Korea.
authors.forename: Min-Kyu
authors.initials: MK
authors.lastname: Ji
authors.affiliation: Environmental Remediation Research Group, Korea Institute of Science and Technology (KIST), Gangneung Institute, Gangneung 210-340, South Korea.
authors.forename: Hyun-Shik
authors.initials: HS
authors.lastname: Yun
authors.affiliation: Environmental Remediation Research Group, Korea Institute of Science and Technology (KIST), Gangneung Institute, Gangneung 210-340, South Korea.
authors.forename: Sanghyun
authors.initials: S
authors.lastname: Park
authors.affiliation: Environmental Remediation Research Group, Korea Institute of Science and Technology (KIST), Gangneung Institute, Gangneung 210-340, South Korea.
authors.forename: Hongkyun
authors.initials: H
authors.lastname: Lee
authors.affiliation: Environmental Remediation Research Group, Korea Institute of Science and Technology (KIST), Gangneung Institute, Gangneung 210-340, South Korea.
authors.forename: Young-Tae
authors.initials: YT
authors.lastname: Park
authors.affiliation: Department of Chemistry, Seoul Women's University, Seoul 139-774, South Korea.
authors.forename: Sunyoung
authors.initials: S
authors.lastname: Bae
authors.affiliation: Natural Medicine Center, Korea Institute of Science and Technology (KIST), Gangneung Institute, Gangneung 210-340, South Korea.
authors.forename: Jungyeob
authors.initials: J
authors.lastname: Ham
authors.affiliation: Environmental Remediation Research Group, Korea Institute of Science and Technology (KIST), Gangneung Institute, Gangneung 210-340, South Korea. Electronic address: jchoi@kist.re.kr.
authors.forename: Jaeyoung
authors.initials: J
authors.lastname: Choi
mesh_terms: D056804:Biofuels / Q000382:microbiology*; D018533:Biomass; D002241:Carbohydrates / Q000032:analysis; D004952:Esters / Q000032:analysis; D005227:Fatty Acids / Q000032:analysis; D005427:Flocculation; D005502:Food; D058086:Microalgae / Q000254:growth & development / Q000378:metabolism*; D008969:Molecular Sequence Data; D044444:Scenedesmus / Q000254:growth & development / Q000378:metabolism*; D012623:Seawater / Q000737:chemistry; D012965:Sodium Chloride / Q000032:analysis; D062065:Wastewater / Q000737:chemistry*
chemical_list: D056804:Biofuels; D002241:Carbohydrates; D004952:Esters; D005227:Fatty Acids; D012965:Sodium Chloride; D062065:Wastewater
keywords: Autoflocculation; Bioenergy; Biomass; Food wastewater; Scenedesmus obliquus