Departamento de Química, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil.
Dipartimento di Scienza e Tecnologia del Farmaco, University of Turin, Turin, Italy.
Ultrason Sonochem. 2021 Apr;72:105455. doi: 10.1016/j.ultsonch.2020.105455. Epub 2021 Jan 4.
Nowadays, the application of ultrasound (US) energy for assisting the lignocellulosic biomass and waste materials conversion into value-added products has dramatically increased. In this sense, this review covers theoretical aspects, promising applications, challenges and perspectives about US and its use for biomass treatment. The combination of US energy with a suitable reaction time, temperature and solvent contributes to the destruction of recalcitrant lignin structure, allowing the products to be used in thermochemical and biological process. The main mechanisms related to US propagation and impact on the fragmentation of lignocellulosic materials, selectivity, and yield of conversion treatments are discussed. Moreover, the synergistic effects between US and alternative green solvents with the perspective of industrial applications are investigated. The present survey analysed the last ten years of literature, studying challenges and perspectives of US application in biorefinery. We were aiming to highlight value-added products and some new areas of research.
如今，超声（US）能量在辅助木质纤维素生物质和废物转化为增值产品方面的应用显著增加。在这个意义上，本综述涵盖了超声及其在生物质处理方面的理论方面、有前途的应用、挑战和前景。将超声能量与合适的反应时间、温度和溶剂相结合，有助于破坏木质素结构的顽固性，使产品能够在热化学和生物过程中得到利用。讨论了与超声传播和对木质纤维素材料碎片化、选择性和转化处理收率相关的主要机制。此外，还研究了超声与替代绿色溶剂之间的协同作用及其在工业应用中的前景。本调查分析了过去十年的文献，研究了超声在生物炼制中的应用所面临的挑战和前景。我们旨在强调增值产品和一些新的研究领域。
