Biofuel production from microalgae: a review

Improving ‘Lipid Productivity’ in Microalgae by Bilateral Enhancement of Biomass and Lipid Contents: A Review

“…Oleaginous microalgae are potential cell factories for viable biodiesel production. It possesses the inherent ability to accumulate value-added products such as lipids and exhibits a high growth rate [20]. Commercially sustainable microalgae-based biofuel production requires screening local oleaginous species, which can be further promoted by strain engineering strategies [37,62].…”

“…Microalgae are characterized based on high lipid content and fast growth rate. But all of the algae species are not regarded as the best lipid producers [20,25,63]. Although documented in different studies about increasing the microalgal lipid productivity via various approaches, the potential limitation cannot be overcome if the screened algal species are not apt for biodiesel production [17,47].…”

“…Thus, how to optimize cultivation conditions to achieve high lipid and biomass and production, is a big challenge in feedstock production [41,109]. In this sense, the two-phase system has been proposed as a win-win strategy to overcome the trade-off effect between biomass and lipid yield [20]. In the two-step cultivation system, a nutrient-rich growth medium is used in the first step to obtaining maximal biomass production.…”

“…Furthermore, it is well established that the implementation of an efficient cultivation system that can deal with the contrast between lipid and biomass production is important in enhancing lipid productivity. Establishing the strategies that provide the best performance in the down-stream stage such as harvesting and after-harvesting stages can also provide an additional approach for promoting the lipid productivity of algae strains [20].…”

Evaluation of Scenedesmus rubescens for Lipid Production from Swine Wastewater Blended with Municipal Wastewater

“…Biodiesel is a critical need to reduce human dependency on fossil fuels and to decrease greenhouse gas effects. The use of microalgae to produce biodiesel achieves high lipid yields per unit area and high growth rates, and therefore, has the potential to completely replace fossil fuels [1][2][3][4][5]. In addition, this method does not compete with humans by using food plants or agricultural land.…”