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相关概念视频

Biofuels01:25

Biofuels

The microbial conversion of organic matter into biofuels holds potential as a renewable energy source. Among biofuel sources, microalgae are recognized as a highly efficient and adaptable feedstock for biodiesel production, owing to their rapid biomass accumulation, elevated lipid productivity, and capacity to proliferate in diverse aquatic systems, including freshwater, marine, and wastewater habitats. Unlike terrestrial crops, microalgae do not compete for land and can achieve significantly...

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相关实验视频

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Qualitative Characterization of the Aqueous Fraction from Hydrothermal Liquefaction of Algae Using 2D Gas Chromatography with Time-of-flight Mass Spectrometry
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一种基于离子液体的生物炼油方法,用于利用草.

Anton E J Firth1, Pedro Y S Nakasu1, Paul S Fennell1

  • 1Department of Chemical Engineering, Imperial College London, London SW7 2AZ, United Kingdom.

ACS sustainable resource management
|May 29, 2024
PubMed
概括

藻生物质的离子液体预处理显示出高粉回收和糖释放率,性能优于传统的纤维纤维素材料. 虽然蛋白质溶解是重要的,但回收是有限的,金属提取需要进一步优化.

科学领域:

  • 生物质预处理 生物质预处理
  • 离子液体是一种离子液体.
  • 使用水生生物质利用水生生物质利用.

背景情况:

  • 草生物质为生物提炼提供了独特的特性,包括金属,粉和蛋白质的积累.
  • 离子液体 (ILs) 是生物质预处理的有希望的溶剂,因为它们的调节性质.

研究的目的:

  • 建立离子液 (IL) 预处理草生物质的基础.
  • 为草优化基于IL的工艺,专注于粉回收,糖释放,蛋白质溶解和金属提取.

主要方法:

  • 研究了两个ILs:二甲基乙醇酸盐 ([DMEtA][HCOO]) 和N,N-二甲基乙醇硫酸 ([DMBA][HSO4]).
  • 预处理了两种类植物 (Spirodela polyrhiza和Lemna minor).
  • 评估了粉回收,糖释放,蛋白质回收和金属提取效率.

主要成果:

  • 在2小时内以120°C的[DMEtA][HCOO]和90°C的[DMBA][HSO4]实现了接近定量粉回收.
  • 经过8小时的水解,糖化产量超过了90%,超过了传统的菌生物质.
  • 蛋白质溶解率在50-80重量%之间,但由于低分子量阻碍了恢复.
  • 与[DMBA][HSO4] (28%) 相比,[DMEtA][HCOO]的去除率 (81%) 更高.

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结论:

  • 草是基于IL的预处理的可行的原料,产生高粉和糖回收.
  • ILs显示了对并发金属开采的潜力,但需要进一步优化.
  • 溶解的草蛋白的低分子量限制了其在IL系统中的恢复.