Zhang Jingjing, Zhang Weihua, Cai Ziyuan, Zhang Jilin, Guan Dan, Ji Dandan, Gao Wensheng
College of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Science), Jinan, Shandong, P. R. China 250353.
Institute of Vegetables and Flowers, Shandong Academy of Agricultural Sciences, Jinan, Shandong, P. R. China 250100.
ACS Omega. 2022 May 24;7(22):18761-18769. doi: 10.1021/acsomega.2c01302. eCollection 2022 Jun 7.
The most essential issue facing the world today is the provision of energy and sustainable consumption of natural resources. Pretreatment is an essential step to produce biofuels from lignocellulosic biomass. In this study, ammonia fiber explosion (AFEX) combined with NaOH (A-NaOH) pretreatment effects on the characteristics of (herbaceous), oak (hardwood), and camphor wood (softwood) were assessed using enzymatic efficiency analysis, thereby identifying the composition properties of subsequent bio-H production. The results show that the lignin removal (84.2%, 59.7%, and 36.7%, respectively) at 5%A-NaOH conditions and enzymatic efficiency (36.2%, 9.7%, and 6.5%, respectively) of (), oak, and camphor wood were significantly increased under 4% A-NaOH conditions. Further A-NaOH pretreatment significantly promoted dark fermentation bio-H production (152.3, 99.1, and 76.9 mL/g TS, respectively) and volatile acid production (4660.2, 3720.2, and 3496.2 mg/L, respectively) of , oak, and camphor wood. These findings show that A-NaOH pretreatment is an effective means of utilization of lignocellulose resources.
当今世界面临的最关键问题是能源供应和自然资源的可持续消耗。预处理是从木质纤维素生物质生产生物燃料的关键步骤。在本研究中，通过酶效率分析评估了氨纤维爆破（AFEX）结合NaOH（A-NaOH）预处理对（草本植物）、橡木（硬木）和樟木（软木）特性的影响，从而确定后续生物制氢的组成特性。结果表明，在5%A-NaOH条件下，（）、橡木和樟木的木质素去除率（分别为84.2%、59.7%和36.7%）和酶效率（分别为36.2%、9.7%和6.5%）在4%A-NaOH条件下显著提高。进一步的A-NaOH预处理显著促进了（）、橡木和樟木的暗发酵生物制氢（分别为152.3、99.1和76.9 mL/g TS）和挥发性酸产生（分别为4660.2、3720.2和3496.2 mg/L）。这些发现表明，A-NaOH预处理是利用木质纤维素资源的有效手段。
