Efficient ethanol production through lignocellulosic biomass hydrolysates could solve energy crisis as it is economically sustainable and ecofriendly. Saccharomyces cerevisiae is the work horse for lignocellulosic bioethanol production at industrial level. But its inability to ferment and utilize xylose limits the overall efficacy of the process. Data for the review was selected using different sources, such as Biofuels digest, Statista, International energy agency (IEA). Google scholar was used as a search engine to search literature for yeast metabolic engineering approaches. Keywords used were metabolic engineering of yeast for bioethanol production from lignocellulosic biomass. Through these approaches, interconnected pathways can be targeted randomly. Moreover, the improved strains genetic makeup can help us understand the mechanisms involved for this purpose. This review discusses all possible approaches for metabolic engineering of yeast. These approaches may reveal unknown hidden mechanisms and construct ways for the researchers to produce novel and modified strains.

中文翻译：

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跟踪啤酒酵母赋予木糖利用/发酵的战略发展

通过木质纤维素生物质水解产物高效生产乙醇可以解决能源危机，因为它在经济上可持续且生态友好。酿酒酵母（Saccharomyces cerevisiae）是在工业水平上生产木质纤维素生物乙醇的重要产品。但是它不能发酵和利用木糖限制了该方法的整体功效。使用不同的来源（例如生物燃料摘要，Statista，国际能源机构（IEA））选择了要审查的数据。Google Scholar被用作搜索引擎，以搜索有关酵母代谢工程方法的文献。使用的关键词是酵母的代谢工程，用于从木质纤维素生物质生产生物乙醇。通过这些方法，可以随机地针对互连的路径。此外，改良菌株的遗传组成可以帮助我们了解为此目的涉及的机制。这篇评论讨论了酵母代谢工程的所有可能方法。这些方法可能揭示未知的隐藏机制，并为研究人员生产新的和改良的菌株构建途径。