Botryococcus braunii:From Carbon Dioxide Fixation to the Biosynthesis of Alkanes,Alkenes and Terpenes
Highly efficient bioproduction of hydrocarbons is one of the effective means to solve the shortage of petroleum and other liquid fuels,while microalgae-based oils are a reliable choice for the production of sustainable biofuels.Botryococcus braunii is an irregular unicellular colony belonging to the chlorophyta,which has received widespread attention for accumulating the large amounts of hydrocarbons,with a maximum content of up to 75％of its dry weight.In recent years,continued in-depth research into the biological characteristics and growth physiology of B.braunii,has improved the feasibility of its large-scale cultivation and industrial production of hydrocarbons.In this review,the potential of B.braunii as a novel oleaginous microalga for hydrocarbon production was briefly described from the aspects of biological characteristics,hydrocarbon synthetic pathways and regulatory factors,omics studies,and large-scale cultivation techniques.This could provide a reference for exploring the large-scale industrial production of biofuels based on B.braunii,thus accelerating the development and exploitation of this microalgal resource.
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