Biobutanol is gaining more attention as a potential alternative to ethanol, and the demand for fermentative biobutanol production has renewed interest. The main challenge faced in biobutanol production is the availability of feedstock. Using conventional agricultural biomass as feedstock is controversial and less efficient, while microalgae, the third generation feedstock, are considered promising feedstock for biobutanol production due to their high growth rate and high carbohydrates content. This review is primarily focused on biobutanol production by using carbohydrate-rich microalgal feedstock. Key technologies and challenges involved in producing butanol from microalgae are discussed in detail and future directions are also presented.

生物丁醇作为乙醇的潜在替代品正受到越来越多的关注，并且对发酵生物丁醇生产的需求也重新引起了人们的兴趣。生物丁醇生产面临的主要挑战是原料的可用性。使用常规农业生物质作为原料是有争议的且效率较低，而第三代原料微藻由于其高生长速率和高碳水化合物含量，被认为是用于生产生物丁醇的有前途的原料。这项审查主要侧重于通过使用富含碳水化合物的微藻原料生产生物丁醇。详细讨论了从微藻生产丁醇的关键技术和挑战，并提出了未来的发展方向。