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.
Bioresour Technol. 2012 Nov;123:195-8. doi: 10.1016/j.biortech.2012.07.095. Epub 2012 Aug 2.
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.
热预处理被测试用于通过己烷萃取从水混合物中提高产烃微藻(Botryococcus braunii)的烃类回收率。处理温度的有效性取决于产烃微藻的菌株，对于 Yamanaka、Showa 和 Kawaguchi-1 株，回收超过 90%烃类的最低温度分别为 60、85 和 75°C。热预处理的保持时间对烃类回收率的影响小于处理温度，取决于菌株，在 80-90°C 下仅 2.5min 的热预处理后，回收率在 74.9%至 94.9%之间。这些结果表明，热预处理可以降低从湿产烃微藻细胞中回收油的过程的能耗。
