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由热敏聚合物诱导的微藻聚合

Xuexue Wang¹, Donovan Mafukidze¹, Yi Zheng¹

¹Department of Grain Science and Industry, Kansas State University, 1980 Kimball Avenue, Manhattan, KS 66506, USA.

Bioresource technology

|October 17, 2024

概括

热敏聚合物 (TRPs) 为微藻收获提供了一种新的解决方案,这是藻类生物炼油厂面临的关键挑战. 聚(N-异烯胺) 证明了高效的Chlorella vulgaris细胞的收获.

科学领域:

生物技术是生物技术.
材料科学材料科学材料科学
化学工程是化学工程的重要组成部分.

背景情况:

藻类生物质采集是基于藻类的生物炼油厂商业化的一个重要障碍.
开发高效和成本效益的藻类采集技术对于可持续的生物燃料和生物产品生产至关重要.

研究的目的:

研究热敏聚合物 (TRP) 的潜力,特别是聚N-异烯胺 (PNIPAM) 和其衍生物,用于微藻收获.
合成和描述各种PNIPAM聚合物,并评估它们在采集Chlorella vulgaris中的性能.

主要方法:

合成各种具有不同电荷,分子量 (MW) 和氨基含量的PNIPAM聚合物.
研究聚合物度对较低临界溶液温度 (LCST) 和相位过渡行为的影响.
使用合成PNIPAM聚合物的微藻 (Chlorella vulgaris) 收获效率的评估.

主要成果:

随着聚合物度的增加,PNIPAM的LCST下降,在高MW聚合物中观察到较低的下降率.
氨基含量没有显著影响TRP的LCST.
对于Chlorella vulgaris细胞,PNIPAM-300 kDa实现了大约92%的收获效率,而修改后的TRPs提供了最小的改进.

结论:

热敏聚合物,特别是PNIPAM,是有效采集微藻的有希望的材料.
优化聚合物特性,如分子量,是提高收获性能的关键.
TRP提供了一个可行的技术解决方案,以克服藻类生物炼油商业化中的关键障碍.

关键词:

采集藻类的采集生物能源是生物能源.解决方案的临界温度较低的临界温度.阶段过渡阶段过渡聚N-异烯胺) 是一种聚N-异烯胺.

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