Department of Chemical Engineering, Chungbuk National University, Cheongju, Chunbuk 361-763, Republic of Korea.
Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur, India.
Sci Total Environ. 2020 May 10;716:137067. doi: 10.1016/j.scitotenv.2020.137067. Epub 2020 Feb 1.
The growing concerns over the depleting fossil fuels and increase in the release of greenhouse gas emissions have necessitated the search for the potential biomass source for alternative energy generation. In this context, third generation biomass specifically maroalgae has gained a lot of research interest in the recent years for energy and products generation such as ethanol, butanol, alginates, agars, and carrageenans. There are a few reviews available in scientific domain on macroalgal biomass utilization for bioethanol production but none of them has addressed precisely from phenolic precursor compounds to the entire ethanol production process and its bottlenecks. Here, we explained critically the processes involved in bioethanol, value added products and chemicals production utilizing macroalgal biomass as a feedstock along with its zero waste feasibility approach. Apart from this, we have also summarized the major issues linked to the macroalgae based biofuels and bioproducts generation processes and their possible corrective measures. Biorefinery is a promising way to generate multiple products from a single source with short processing time. Thus, this review also focuses on the recent advancement in the macroalgal biomass scaling up and how this could help in the growth of macroalgal biorefinery industry in the near future.
人们对化石燃料的消耗和温室气体排放的增加日益关注，这使得人们有必要寻找潜在的生物质资源来替代能源的产生。在这种背景下，第三代生物质，特别是巨藻，近年来在能源和产品生产方面，如乙醇、丁醇、藻酸盐、琼脂和角叉菜胶，引起了广泛的研究兴趣。科学界有一些关于利用大型藻类生物质生产生物乙醇的综述，但没有一个综述准确地描述了从酚类前体化合物到整个乙醇生产过程及其瓶颈的情况。在这里，我们批判性地解释了利用大型藻类生物质作为原料生产生物乙醇、增值产品和化学品的过程，以及其零废物的可行性方法。除此之外，我们还总结了与大型藻类生物燃料和生物制品生产过程相关的主要问题及其可能的纠正措施。生物炼制是一种从单一来源短时间内生产多种产品的很有前途的方法。因此，本综述还重点介绍了大型藻类生物质扩大规模的最新进展，以及这将如何有助于未来大型藻类生物炼制行业的发展。
