Effects of soybean curd wastewater on the growth and hydrocarbon production of Botryococcus braunii strain BOT-22

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• 作者：Natsuki Yonezawa ; ^{natsuki.yonezawa@gmail.com} ; ^{nyonezawa@ies.life.tsukuba.ac.jp} ; Hiroshi Matsuura ; Makoto Shiho ; Kunimitsu Kaya ; Makoto M. Watanabe
• 关键词：Botryococcus braunii ; Growth ; Hydrocarbon production ; Mass cultivation ; Soybean curd wastewater
• 刊名：Bioresource Technology
• 出版年：2012
• 期刊代码：11_09608524
• 类别：ce
• 出版时间：April, 2012
• 卷：109
• 期：Complete
• 页码：304-307
• 文件大小：386 K

摘要

A laboratory study was conducted to evaluate the possibility of using wastewater from a soybean curd manufacturing plant as a growth promoter of Botryococcus braunii strain BOT-22. Soybean curd wastewater (SCW) were added to AF-6 medium to set the final concentration to 0%(control), 1%, 2%, 5%, and 10%(v/v). The growth and hydrocarbon production observed in the cultures with 1%and 2%SCW were significantly higher than that observed in the control. It was postulated that proteins and/or reducing sugars in SCW could enhance the growth. A major finding was a shift in the chemical composition of hydrocarbons from C₃₄H₅₈ to C₃₂H₅₄ in association with increased concentrations of SCW. Considering the inorganic ions in SCW, it was presumed that a mixture of nitrate, 1-2%SCW, and secondarily treated SCW can be applied for mass cultivation of Botryococcus.