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持续种植微藻可以从化尿中获得高的营养回收,而补充剂的数量有限

Jolien De Paepe¹, David Garcia Gragera², Carolina Arnau Jimenez²

¹MELiSSA Pilot Plant - Laboratory Claude Chipaux, Universitat Autònoma de Barcelona, Bellaterra, 08193, Barcelona, Spain; Center for Microbial Ecology and Technology (CMET), Department of Biotechnology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000, Gent, Belgium; Centre for Advanced Process Technology for Urban Resource Recovery (CAPTURE), Belgium; Research Group of Sustainable Energy, Air and Water Technology, Department of Bioscience Engineering, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerpen, Belgium.

Journal of environmental management

|August 5, 2023

概括

化人体尿液,当补充了必需的营养素时,有效地培养了Limnospira indica的微藻,证明了其作为生物经济和太空探索的可持续生长媒介的潜力.

科学领域:

* 生物技术和生物经济
* 微藻种植的方法
* * 废物流的价值化

背景情况:

*微藻对生物经济至关重要,废弃物流提供可持续的种植媒介.
*尿液是一种富含营养的废物,可以通过稳定和化加工成稳定,富含酸盐的溶液.
* 开发高效的微藻种植方法对于资源回收和循环经济原则至关重要.

研究的目的:

* 评估化人体尿作为食用微藻Limnospira indica的培养基.
*确定必要的补充剂,以优化生物质生产和化尿中的营养吸收.
* 评估在连续栽培系统中使用补充化尿的可行性.

主要方法:

*使用未经处理和补充的化尿液进行Limnospira indica的批量栽培,与修改后的Zarrouk介质进行比较.
*补充策略侧重于潜在的限制性元素,如,,,铁和EDTA.
* 连续培养实验是在连续动反应器 (CSTR) 光生物反应器中进行的.

主要成果:

*与标准介质相比,未经处理的化尿液导致生物质,营养吸收和蛋白质含量较低.
*补充,,,铁和EDTA显著提高了性能,与标准介质相匹配.
*优化的化尿液支持生物质生产 (OD750的1.2),营养摄取 (130毫克N L-1),和蛋白质产量 (47%) 在批量培养.
*在CSTR中持续培养证实了补充化尿的有效性.

结论:

*补充化尿是Limnospira indica种植的可行和有效媒介.
*这种方法建立了新的营养循环,适用于地球和太空任务的再生生命支持系统.
*通过培养微藻来提升尿液的价值,有助于可持续的资源管理和生物经济.

关键词:

关节螺旋 (Arthrospira) 是一种动脉螺旋.梅丽莎·梅丽莎 (Melissa) 是一个美丽的女孩.资源回收利用的方法螺旋藻是指螺旋藻中的一种.尿源分离尿源分离蓝藻细菌是一种蓝藻细菌.

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