Harvesting and drying processes are still obstacles in the microalgae production chain. In this study, a combination of different harvesting and drying methods for Scenedesmus obliquus was proposed. S. obliquus was cultivated in a pond raceway for 15 days until reaching stationary phase. The culture was separated by different harvesting methods (centrifugation and flocculation) and drying methods (freezing, freeze-drying and oven drying), each combination in triplicate. Flocculation did not influence FAME yield of S. obliquus, except when the biomass was dried in an oven. The biomass that was only frozen had the lowest FAME content due to the presence of reactive water in the biomass. In contrast, frozen biomass had higher content of saturated and monosaturated fatty acids; freeze-drying or oven drying caused an enrichment of the polyunsaturated fatty acids content. In conclusion, if the biomass will be used to extract polyunsaturated fatty acids, freeze-drying would be more appropriate. On the other hand, if the purpose of the biomass is to produce biodiesel, the best process would be to just freeze the biomass.

收获和干燥过程仍然是微藻生产链中的障碍。在这项研究中，提出了一种不同的收成和干燥方法的结合，用于斜角景天。斜生链球菌在池塘水道中培养15天，直到达到稳定期。通过不同的收获方法（离心和絮凝）和干燥方法（冷冻，冷冻干燥和烤箱干燥）分离培养物，每种组合均一式三份。絮凝不影响斜链酵母的FAME产量，除非将生物质在烤箱中干燥。由于生物质中存在反应水，仅冷冻的生物质的FAME含量最低。相反，冷冻的生物质具有较高的饱和和单饱和脂肪酸含量。冷冻干燥或烤箱干燥导致多不饱和脂肪酸含量的增加。总之，如果将生物质用于提取多不饱和脂肪酸，则冷冻干燥将更为合适。另一方面，如果生物质的目的是生产生物柴油，则最佳过程将是仅冻结生物质。