The production of so-called advanced bioethanol offers several advantages compared to traditional bioethanol production processes in terms of sustainability criteria. This includes, for instance, the use of nonfood crops or residual biomass as raw material and a higher potential for reducing greenhouse gas emissions. The present review focuses on the recent progress related to the production of advanced bioethanol, (i) highlighting current results from using novel biomass sources such as the organic fraction of municipal solid waste and certain industrial residues (e.g., residues from the paper, food, and beverage industries); (ii) describing new developments in pretreatment technologies for the fractionation and conversion of lignocellulosic biomass, such as the bioextrusion process or the use of novel ionic liquids; (iii) listing the use of new enzyme catalysts and microbial strains during saccharification and fermentation processes. Furthermore, the most promising biorefinery approaches that will contribute to the cost-competitiveness of advanced bioethanol production processes are also discussed, focusing on innovative technologies and applications that can contribute to achieve a more sustainable and effective utilization of all biomass fractions. Special attention is given to integrated strategies such as lignocellulose-based biorefineries for the simultaneous production of bioethanol and other high added value bioproducts.

中文翻译：

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先进的生物乙醇生产：从新型原料到综合生物精炼厂

就可持续性标准而言，与传统生物乙醇生产工艺相比，所谓的高级生物乙醇生产具有多个优势。例如，这包括使用非粮食作物或残余生物量作为原料，以及减少温室气体排放的更大潜力。本综述着重于与先进生物乙醇生产相关的最新进展，（i）强调了使用新型生物质资源（如城市固体废物的有机部分和某些工业残留物，例如纸，食品，食品，饮料，食品和饮料的残留物）的最新结果。和饮料行业）；（ii）描述用于木质纤维素生物质分馏和转化的预处理技术的新发展，例如生物挤出工艺或使用新型离子液体；（iii）列出了在糖化和发酵过程中新酶催化剂和微生物菌株的使用。此外，还讨论了最有前途的生物精炼方法，这些方法将有助于先进的生物乙醇生产工艺的成本竞争力，重点关注可有助于实现所有生物质组分更可持续和有效利用的创新技术和应用。特别注意综合策略，例如基于木质纤维素的生物精炼厂，以同时生产生物乙醇和其他高附加值的生物产品。还讨论了最有前途的生物精炼方法，这些方法将有助于先进的生物乙醇生产工艺的成本竞争力，重点关注可有助于实现所有生物质组分更可持续和有效利用的创新技术和应用。特别注意综合策略，例如基于木质纤维素的生物精炼厂，以同时生产生物乙醇和其他高附加值的生物产品。还讨论了最有前途的生物精炼方法，这些方法将有助于先进的生物乙醇生产工艺的成本竞争力，重点关注可有助于实现所有生物质组分更可持续和有效利用的创新技术和应用。特别注意综合策略，例如基于木质纤维素的生物精炼厂，以同时生产生物乙醇和其他高附加值的生物产品。