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Abstract
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This short review article examines biohydrogen production from microalgae and highlights its potential as a sustainable energy source in reducing fossil fuel reserves and increasing greenhouse gas emissions. This paper discusses the different metabolic pathways used by microalgae to produce hydrogen, focusing on their flexibility and adaptation to harsh environmental conditions. This review emphasizes the importance of the non-toxic and renewable properties of biohydrogen, making it an attractive alternative for various industrial applications. It also explores different production methods, especially dark fermentation. This paper aims to provide insight into overcoming the challenges of biohydrogen production from microalgae and pave the way for progress in renewable energy technologies
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