Faculty of Materials and Environmental Sciences, University of Bielsko-Biala, Willowa 2, 43-309 Bielsko-Biala, Poland.
Department of Environmental Engineering, Technical University of Denmark, Building 113, DK-2800 Lyngby, Denmark.
Bioresour Technol. 2014 Jul;163:236-43. doi: 10.1016/j.biortech.2014.04.049. Epub 2014 Apr 24.
In the present study, combined steam (140-180°C) and dilute-acid pre-hydrolysis (0.0-2.0%) were applied to industrial hemp (Cannabis sativa L.), as pretreatment for lignocellulosic bioethanol production. The influence of the pretreatment conditions and cultivation type on the hydrolysis and ethanol yields was also evaluated. Pretreatment with 1% sulfuric acid at 180°C resulted in the highest glucose yield (73-74%) and ethanol yield of 75-79% (0.38-0.40 g-ethanol/g-glucose). Taking into account the costs of biomass processing, from field to ethanol facility storage, the field-dried hemp pretreated at the optimal conditions showed positive economic results. The type of hemp cultivation (organic or conventional) did not influence significantly the effectiveness of the pretreatment as well as subsequent enzymatic hydrolysis and ethanol fermentation.
在本研究中，将联合汽蒸（140-180°C）和稀酸预水解（0.0-2.0%）应用于工业大麻（Cannabis sativa L.），作为木质纤维素生物乙醇生产的预处理方法。还评估了预处理条件和种植类型对水解和乙醇产率的影响。在 180°C 下用 1%硫酸预处理可获得最高的葡萄糖产率（73-74%）和乙醇产率（75-79%，0.38-0.40 g-乙醇/g-葡萄糖）。考虑到生物质加工的成本，从田间到乙醇工厂的储存，在最佳条件下进行田间干燥的大麻预处理显示出了积极的经济结果。大麻种植类型（有机或常规）并没有显著影响预处理以及随后的酶解和乙醇发酵的效果。
