Department of Biotechnology, Engineering School of Lorena, University of São Paulo, CEP 12602-810, Brazil.
Department of Civil and Environmental Engineering, KAIST, 373-1 Guseong-dong, Yuseong-gu, Daejeon 305-701, Republic of Korea.
Bioresour Technol. 2016 Aug;214:609-614. doi: 10.1016/j.biortech.2016.05.004. Epub 2016 May 5.
Hydrodynamic cavitation (HC) was employed in order to improve the efficiency of alkaline pretreatment of sugarcane bagasse (SCB). Response surface methodology (RSM) was used to optimize pretreatment parameters: NaOH concentration (0.1-0.5M), solid/liquid ratio (S/L, 3-10%) and HC time (15-45min), in terms of glucan content, lignin removal and enzymatic digestibility. Under an optimal HC condition (0.48M of NaOH, 4.27% of S/L ratio and 44.48min), 52.1% of glucan content, 60.4% of lignin removal and 97.2% of enzymatic digestibility were achieved. Moreover, enzymatic hydrolysis of the pretreated SCB resulted in a yield 82% and 30% higher than the untreated and alkaline-treated controls, respectively. HC was found to be a potent and promising approach to pretreat lignocellulosic biomass.
为了提高甘蔗渣（SCB）的碱性预处理效率，采用水力空化（HC）技术。利用响应面法（RSM）对预处理参数进行优化：NaOH 浓度（0.1-0.5M）、固液比（S/L，3-10%）和 HC 时间（15-45min），以衡量纤维素含量、木质素去除率和酶解率。在最佳 HC 条件下（NaOH 浓度为 0.48M，S/L 比为 4.27%，HC 时间为 44.48min），纤维素含量达到 52.1%，木质素去除率达到 60.4%，酶解率达到 97.2%。此外，预处理后的 SCB 进行酶解，其产率分别比未处理和碱性处理对照组高 82%和 30%。HC 被发现是一种很有前途的预处理木质纤维素生物质的方法。
