提高微藻的甲烷产量：非生物压力和石英粉对细胞的破坏。

IF 9.7 1区环境科学与生态学 Q1 AGRICULTURAL ENGINEERING

Bioresource Technology Pub Date : 2024-09-20 DOI:10.1016/j.biortech.2024.131511

Marek Klin, Andrzej Lewicki, Filip Pniewski, Adam Latała

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引用次数: 0

摘要

本研究采用石英粉（SiO2）这种新型细胞破碎法，对微藻生物量的生化甲烷潜能（BMP）进行了研究。研究采用了两相藻类培养法，包括氮素剥夺和盐度变化，对两种咸水绿藻菌株--绿球藻（Chlorella vulgaris）和变形单胞藻（Monoraphidium contortum）的生物量进行了生化改造，提高了它们的甲烷（CH4）生产潜力。对藻类细胞的机械破坏进一步提高了生物生产潜力，其中绿藻的产量为 305 mL CH4/g挥发性固体（VS），而轮虫的产量为 324 mL CH4/g VS，分别提高了 51 % 和 86 %。将这种高效的机械细胞破碎方法与简单、基于压力的培养策略相结合，为提高微藻生物质的甲烷产量带来了巨大的潜力。

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Enhancing methane yield from microalgae: Abiotic stress and cells disruption with quartz powder.

This study investigates the biochemical methane potential (BMP) of microalgal biomass, introducing a novel cells disruption method using quartz powder (SiO₂). A two-phase algae cultivation, involving nitrogen deprivation and salinity shifts, was employed to biochemically modify the biomass of two brackish green algae strains, Chlorella vulgaris and Monoraphidium contortum, enhancing their methane (CH₄) production potential. Mechanical disruption of the algal cells further increased BMP, with C. vulgaris yielding 305 mL CH₄/g volatile solids (VS) and M. contortum reaching 324 mL CH₄/g VS, reflecting respective increases of 51 % and 86 %. The integration of this efficient mechanical cell disruption method with a simple, stress-based cultivation strategy presents significant potential for enhancing the methane yield of microalgal biomass.

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来源期刊

Bioresource Technology 工程技术-能源与燃料

CiteScore

20.80

自引率

19.30%

发文量

2013

审稿时长

12 days

期刊介绍： Bioresource Technology publishes original articles, review articles, case studies, and short communications covering the fundamentals, applications, and management of bioresource technology. The journal seeks to advance and disseminate knowledge across various areas related to biomass, biological waste treatment, bioenergy, biotransformations, bioresource systems analysis, and associated conversion or production technologies. Topics include: • Biofuels: liquid and gaseous biofuels production, modeling and economics • Bioprocesses and bioproducts: biocatalysis and fermentations • Biomass and feedstocks utilization: bioconversion of agro-industrial residues • Environmental protection: biological waste treatment • Thermochemical conversion of biomass: combustion, pyrolysis, gasification, catalysis.