Under culture condi ons, these microorganisms can be grown at different scales in fresh, salt, brackish and even wastewater without the need for arable land. Microalgae fix atmospheric CO2 while simultaneously producing biomass and O2 during photosynthesis. Therefore, microalgae can be seen as efficient microscopic "biofactories" that are capable of producing a broad variety of interes ng metabolites in a sustainable way. Among these metabolites, lipids are of par cular interest since they can be used as feedstock for new high-value materials. Microalgae are significantly more produc ve than conven onal oil crops due to their considerable rapid growth rates and crop yields. Thus, in the last decades, microalgae have already raised high interest in industry as a renewable source for socalled third-genera on biofuels that do not compete with human food produc on. Microalgae have further been studied as microscopic biorefineries for olefins of different chain length as well as for other high-added-value metabolites. For example, microalgae-based oil has also been employed for the prepara on of polyol architectures that can be converted into polyurethane foams. However, microalgae remain unexplored in other fields such as addi ve manufacturing.