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Improved Biomass and Hydrocarbon Productivity of Botryococcus braunii by Periodic Ultrasound Stimulation
Alternative TitleBioEnergy Res.
Xu, Ling; Wang, Shi-Kai; Wang, Feng; Guo, Chen; Liu, Chun-Zhao
2014-09-01
Source PublicationBIOENERGY RESEARCH
ISSN1939-1234
Volume7Issue:3Pages:986-992
AbstractUltrasonic treatment was firstly found to accelerate both biomass and hydrocarbon productivities of Botryococcus braunii algal cells cultured in the shake flasks. The most effective sonication strategy was to subject the cells to three 5-min ultrasonic treatments at a 4-day interval using a fixed frequency of 40 kHz and power of 240 W, and the ultrasound-treated algal cells showed the highest biomass productivity of 0.043 g L-1 day(-1) and the highest hydrocarbon productivity of 13.1 mg L-1 day(-1) among all ultrasound treatments tested. The improved productivity was proved to be mainly due to the enhancement of both endogenous indole-3-acetic acid (IAA) biosynthesis and membrane permeability in the ultrasound-stimulated algal cells. The efficient ultrasonic stimulation strategy also showed good performance for the algal culture in a 2-L airlift bioreactor. Together, these results not only illustrate the immense potential for an enhanced understanding on ultrasound-stimulated algal cells but also as provide a powerful process intensification method to improve the biomass and hydrocarbon productivity of B. braunii in practice.; Ultrasonic treatment was firstly found to accelerate both biomass and hydrocarbon productivities of Botryococcus braunii algal cells cultured in the shake flasks. The most effective sonication strategy was to subject the cells to three 5-min ultrasonic treatments at a 4-day interval using a fixed frequency of 40 kHz and power of 240 W, and the ultrasound-treated algal cells showed the highest biomass productivity of 0.043 g L-1 day(-1) and the highest hydrocarbon productivity of 13.1 mg L-1 day(-1) among all ultrasound treatments tested. The improved productivity was proved to be mainly due to the enhancement of both endogenous indole-3-acetic acid (IAA) biosynthesis and membrane permeability in the ultrasound-stimulated algal cells. The efficient ultrasonic stimulation strategy also showed good performance for the algal culture in a 2-L airlift bioreactor. Together, these results not only illustrate the immense potential for an enhanced understanding on ultrasound-stimulated algal cells but also as provide a powerful process intensification method to improve the biomass and hydrocarbon productivity of B. braunii in practice.
KeywordBiomass Productivity Botryococcus Braunii Indole-3-acetic Acid Ultrasound Hydrocarbon Productivity Membrane Permeability
SubtypeArticle
WOS HeadingsScience & Technology ; Technology ; Life Sciences & Biomedicine
DOI10.1007/s12155-014-9441-9
URL查看原文
Indexed BySCI
Language英语
WOS KeywordGROWTH ; CULTURE ; MICROALGAE ; PHOTOSYNTHESIS ; BOT-22 ; STRAIN ; LIGHT ; WATER ; ROOT
WOS Research AreaEnergy & Fuels ; Environmental Sciences & Ecology
WOS SubjectEnergy & Fuels ; Environmental Sciences
WOS IDWOS:000340949900023
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/11576
Collection研究所(批量导入)
AffiliationChinese Acad Sci, Inst Proc Engn, Natl Key Lab Biochem Engn, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Xu, Ling,Wang, Shi-Kai,Wang, Feng,et al. Improved Biomass and Hydrocarbon Productivity of Botryococcus braunii by Periodic Ultrasound Stimulation[J]. BIOENERGY RESEARCH,2014,7(3):986-992.
APA Xu, Ling,Wang, Shi-Kai,Wang, Feng,Guo, Chen,&Liu, Chun-Zhao.(2014).Improved Biomass and Hydrocarbon Productivity of Botryococcus braunii by Periodic Ultrasound Stimulation.BIOENERGY RESEARCH,7(3),986-992.
MLA Xu, Ling,et al."Improved Biomass and Hydrocarbon Productivity of Botryococcus braunii by Periodic Ultrasound Stimulation".BIOENERGY RESEARCH 7.3(2014):986-992.
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