title: Effect of thermal pretreatments on hydrocarbon recovery from Botryococcus braunii.
abstract: Thermal pretreatment were tested to increase the recovery of hydrocarbons from Botryococcus braunii/water mixtures via extraction with hexane. The effectiveness of treatment temperature was dependent on the B. braunii strain and the lowest temperatures which recovered over 90% of hydrocarbons were 60, 85 and 75°C for the Yamanaka, Showa and Kawaguchi-1 strains respectively. The holding times of thermal pretreatment had less of an influence on hydrocarbon recovery than treatment temperature and, depending on the strain, recoveries of between 74.9% and 94.9% were achieved after thermal pretreatments at 80-90°C for only 2.5min. These results suggest thermal pretreatment could reduce the energy consumption of oil recovery process from wet B. braunii cells.
authors.affiliation: Laboratory of Biological and Mechanical Engineering, Graduate School of Agricultural and Life Science, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku 113-8657, Japan.
authors.forename: A
authors.initials: A
authors.lastname: Magota
authors.forename: K
authors.initials: K
authors.lastname: Saga
authors.forename: S
authors.initials: S
authors.lastname: Okada
authors.forename: S
authors.initials: S
authors.lastname: Atobe
authors.forename: K
authors.initials: K
authors.lastname: Imou
mesh_terms: D001709:Biotechnology / Q000379:methods*; D000460:Chlorophyta / Q000378:metabolism*; D006838:Hydrocarbons / Q000302:isolation & purification*; D013696:Temperature; D013997:Time Factors
chemical_list: D006838:Hydrocarbons