海藻酸转化生物乙醇研究进展

作为第三代生物燃料,大型褐藻类生物质转化燃料乙醇的研究受到广泛的关注。但是,现有的乙醇工业菌株并不能利用褐藻中的主要成分海藻酸,这个问题是海藻生物乙醇实现工业化生产的主要技术难关。近几年随着对海藻酸裂解酶和海藻酸降解菌代谢途径的深入研究,科研人员构建了不同的海藻酸发酵菌株,为高效转化大型海藻生产生物乙醇提供了可行的技术基础。这篇文章对海藻酸资源概况和海藻酸转化生物乙醇存在的科学问题及其研究进展进行了综述。

Research Progress of Bioethanol from Alginate Fermentation

As the third-generation biofuel, the bioethanol from macroalgae biomass fermentation have received widespread attention. However, the present ethanol industry strains were not able to utilize alginate that is the main ingredient in seaweed. This is one of the major technical difficulties to impede to achieve the industrial production of alginate bio-ethanol. In recent years, the cleavage enzyme and alginate degrading bacteria metabolic pathways have been studied in depth. The researchers constructed different alginate fermentation strains, and provided a viable technological support for the efficient conversion from alginate to bio-ethanol. This article reviewed resource profile of alginate and the scientific issues of bioethanol production by fermentation with alginate.