Lignocellulose biomass is a unique renewable and sustainable source that can be used in energy generation, production of transport fuels and in chemical industries to replace petroleum-based resources. However, due to its recalcitrance to chemical and enzyme breakdown, it needs to be pre-treated prior to processing. In this study, ultrasound assisted ozone was used to pre-treat the agricultural processing residues corn cob and spelt husk. Following organosolv fractionation, About 90% and 94% of lignin with high purity (95%) were recovered for corn cob and spelt husk with guaiacyl-syringyl lignin the major fraction from corn cob and guaiacyl lignin from spelt husk respectively. In addition, cellulose pulp of 83.6% and 85.2% with 78% purity were recovered for corn cob and spelt husk respectively with a 19% decrease in cellulose crystallinity and 17% decrease in degree of polymerization (DP). Thus, the improved quality separation of biomass components will enhance downstream conversion to value added products thereby improving the sustainability and cost effectiveness of the process.

木质纤维素生物质是独特的可再生和可持续资源，可用于能源生产，运输燃料生产以及化学工业，以替代石油资源。但是，由于其对化学和酶分解的抵抗力，因此需要在加工之前进行预处理。在这项研究中，超声辅助臭氧被用于预处理农业加工残留物玉米芯和拼壳。有机溶剂分馏后，回收了约90％和94％的高纯度木质素（95％）用于玉米芯，并用愈创木脂-丁香基木质素制成了壳皮，其中主要部分来自玉米芯和愈创木脂木质素。另外，纤维素纸浆为83.6％和85。分别回收2％和78％纯度的玉米芯和拼壳，纤维素结晶度降低19％，聚合度（DP）降低17％。因此，改进的生物质组分的质量分离将增强下游向增值产品的转化，从而提高了该方法的可持续性和成本效益。