Ashour Mohamed, Mansour Abdallah Tageldein, Alkhamis Yousef A, Elshobary Mostafa
National Institute of Oceanography and Fisheries (NIOF), Cairo, Egypt.
Animal and Fish Production Department, College of Agricultural and Food Sciences, King Faisal University, Al-Ahsa, Saudi Arabia.
Front Bioeng Biotechnol. 2024 Aug 20;12:1387519. doi: 10.3389/fbioe.2024.1387519. eCollection 2024.
To address climate change threats to ecosystems and the global economy, sustainable solutions for reducing atmospheric carbon dioxide (CO) levels are crucial. Existing CO capture projects face challenges like high costs and environmental risks. This review explores leveraging microalgae, specifically the genus, for CO capture and conversion into valuable bioenergy products like biohydrogen. The introduction section provides an overview of carbon pathways in microalgal cells and their role in CO capture for biomass production. It discusses current carbon credit industries and projects, highlighting the genus's carbon concentration mechanism (CCM) model for efficient CO sequestration. Factors influencing microalgal CO sequestration are examined, including pretreatment, pH, temperature, irradiation, nutrients, dissolved oxygen, and sources and concentrations of CO. The review explores microalgae as a feedstock for various bioenergy applications like biodiesel, biooil, bioethanol, biogas and biohydrogen production. Strategies for optimizing biohydrogen yield from are highlighted. Outlining the possibilities of further optimizations the review concludes by suggesting that microalgae and -based CO capture is promising and offers contributions to achieve global climate goals.
为应对气候变化对生态系统和全球经济的威胁，减少大气中二氧化碳（CO）水平的可持续解决方案至关重要。现有的CO捕获项目面临着高成本和环境风险等挑战。本综述探讨了利用微藻，特别是[具体属名]，进行CO捕获并转化为有价值的生物能源产品，如生物氢。引言部分概述了微藻细胞中的碳途径及其在CO捕获用于生物质生产中的作用。它讨论了当前的碳信用行业和项目，重点介绍了[具体属名]的碳浓缩机制（CCM）模型以实现高效的CO封存。研究了影响微藻CO封存的因素，包括预处理、pH值、温度、光照、营养物质、溶解氧以及CO的来源和浓度。本综述探讨了微藻作为各种生物能源应用的原料，如生物柴油、生物油、生物乙醇、沼气和生物氢生产。强调了优化[具体属名]生物氢产量的策略。通过概述进一步优化的可能性，综述得出结论，认为微藻和基于[具体属名]的CO捕获具有前景，并为实现全球气候目标做出贡献。
