营养物质浓度和附着材料对微藻附着的影响

Effects of Nutrient Concentration and Attachment Materials on Microalgae Attachment

目的:优化微藻收集方法,减少微藻回收成本。方法:以小球衣藻为研究对象,测定在不同营养条件下小球衣藻的运动速度和附着情况,以研究营养物质浓度与微藻附着之间的联系。结果:在1/10 SE培养基的硝态氮浓度下,小球衣藻在亲水材料和疏水材料上的附着量峰值为(16.07±0.42)×10^4 cells/cm^2、(4.00±0.21)×10^4 cells/cm^2;小球衣藻在1 h和8 h的运动速度峰值为(26.60±0.69)μm/s、(25.21±0.89)μm/s。结论:限制性营养浓度对小球衣藻的运动速度有促进作用,进而促进了小球衣藻的附着;营养物质浓度对小球衣藻的附着也有一定的影响,研究为微藻的收集提供了理论支持和数据支撑。

Objective:optimize the collection method of microalgae to reduce the cost of microalgae recovery.Methods:we use Chlamydomonas microsphaera as model microalgae,by measuring the movement speed and attachment of Chlorella under different nutritional conditions,the relationship between the concentration of nutrients and the attachment of microalgae was explored.Results:Under the nitrate nitrogen concentration of 1/10 SE medium,the movement speed reached the peak value(26.60±0.69)μm/s,and the adhesion amount of Chlorella sp.also reached the peak value(16.07±0.42)×10^4 cells/cm^2.Conclusion:restrictive nutrient concentration has a promoting effect on the movement speed of Chlamydomonas microsphaera vulgaris,which in turn promotes the attachment of Chlorella vulgaris;the concentration of nutrients has a certain effect on the attachment of Chlamydomonas microsphaera,we can provide theoretical and data support for microalgae collection.