Department of Biotechnology and Bioinformatics, Korea University, Sejong 30019, Republic of Korea.
Department of Biotechnology and Bioinformatics, Korea University, Sejong 30019, Republic of Korea.
Bioresour Technol. 2022 Jan;344(Pt B):126404. doi: 10.1016/j.biortech.2021.126404. Epub 2021 Nov 23.
Microalgal research has made significant progress in terms of the high-value-added industrial application of microalgal biomass and its derivatives. However, cost-effective techniques for producing, harvesting, and processing microalgal biomass on a large scale still need to be fully explored in order to optimize their performance and achieve commercial robustness. In particular, technologies for harvesting microalgae are critical in the practical process as they require excessive energy and equipment costs. This review focuses on microalgal flocculation, dewatering, and drying techniques and specifically covers the traditional approaches and recent technological progress in harvesting microalgal biomass. Several aspects, including the characteristics of the target microalgae and the type of final value-added products, must be considered when selecting the appropriate harvesting technique. Furthermore, considerable aspects and possible future directions in flocculation, dewatering, and drying steps are proposed to develop scalable and low-cost microalgal harvesting systems.
微藻研究在微藻生物量及其衍生物的高附加值工业应用方面取得了重大进展。然而，为了优化其性能并实现商业稳定性，仍然需要充分探索大规模生产、收获和处理微藻生物量的具有成本效益的技术。特别是，微藻收获技术在实际过程中至关重要，因为它们需要大量的能源和设备成本。本综述重点介绍了微藻絮凝、脱水和干燥技术，具体涵盖了收获微藻生物量的传统方法和最新技术进展。在选择合适的收获技术时，必须考虑目标微藻的特性和最终增值产品的类型等几个方面。此外，还提出了絮凝、脱水和干燥步骤中相当多的方面和可能的未来方向，以开发可扩展和低成本的微藻收获系统。
