Journal
BIORESOURCE TECHNOLOGY
Volume 354, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2022.127198
Keywords
Water-plasma; Microalgae; Lipid extraction; Biodiesel; Cell wall disruption
Funding
- National Natural Science Foundation of China [22078308]
- National Natural Science Foundation of China for Young International Scientists [21650110457]
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A novel strategy combining water-plasma and three-phase partitioning techniques was introduced to improve the efficiency and recovery of lipid extraction from microalgal biomass, leading to reduced energy consumption and potential biodiesel production.
Traditional methods for lipid extraction from microalgal biomass usually involve harsh reaction conditions or the use of contaminant reagents, which lead to enormous energy consumption and wastage. Hence, a novel strategy was presented, which combined water-plasma and three-phase partitioning (TPP) techniques. Benefiting from its unique advantages such as rapid and low cost, water-plasma strategy can disrupt microalgal cell wall and can thus greatly affect lipid extraction. As a result, assisted with the TPP method, excellent performance lipid recovery (74.34%) was obtained at 200 W in 10 min. The performance was superior to that achieved through cell disruption via water-plasma pretreatment. Importantly, the whole process of lipid extraction prevented the drying of microalgal biomass, contributing to reduced energy consumption in large-scale biodiesel production. Moreover, the high fatty acids content suggested that the extracted lipids are great potential candidate for biodiesel production.
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