8Biofuels provided 2.7% of world's transportation fuel in 2015 which is expected to go up to 9 28% by 2050. However, most of the biofuel produced till date is from crops that can be used 10 as food or feed. Microalgae or most famously the 3 rd generation of biomass has the potential 11to overcome the problems associated with this food vs fuel debate. Microalgae are microscopic 12 photosynthetic organisms which have the ability to fix CO2. Thermochemical conversion via 13 hydrothermal liquefaction is a favourable technology for recovering energy from algal 14 biomass. Research is focused on discovering a viable and sustainable feedstock by cultivating 15and up-scaling the use of microalgae and then utilizing hydrothermal liquefaction to produce a 16 workable biofuel. Synthetic biology and several genetic engineering techniques have also 17shown promising results in the production of biofuels. Plenty of research is being carried out 18 in the field of using microalgae as biomass for biofuel generation; however, it still calls for a 19 robust conversion technology to make the process commercially viable. 20 21 22 23
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