Domański Jarosław, Marchut-Mikołajczyk Olga, Cieciura-Włoch Weronika, Patelski Piotr, Dziekońska-Kubczak Urszula, Januszewicz Bartłomiej, Zhang Bolin, Dziugan Piotr
Department of Environmental Biotechnology, Faculty of Biotechnology and Food Sciences, Lodz University of Technology, 90-924 Lodz, Poland.
Institute of Molecular and Industrial Biotechnology, Faculty of Biotechnology and Food Sciences, Lodz University of Technology, 90-924 Lodz, Poland.
Molecules. 2020 Feb 24;25(4):1013. doi: 10.3390/molecules25041013.
The study describes sulfuric acid pretreatment of straw from L. (rye straw) to evaluate the effect of acid concentration and treatment time on the efficiency of biofuel production. The highest ethanol yield occurred after the enzyme treatment at a dose of 15 filter paper unit (FPU) per gram of rye straw (subjected to chemical hydrolysis with 2% sulfuric acid (SA) at 121 °C for 1 h) during 120 h. Anaerobic digestion of rye straw treated with 10% SA at 121 °C during 1 h allowed to obtain 347.42 L methane/kg volatile solids (VS). Most hydrogen was released during dark fermentation of rye straw after pretreatment of 2% SA, 121 °C, 1 h and 1% SA, 121 °C, 2 h-131.99 and 134.71 L hydrogen/kg VS, respectively. If the rye straw produced in the European Union were processed into methane, hydrogen, ethanol, the annual electricity production in 2018 could reach 9.87 TWh (terawatt-hours), 1.16 TWh, and 0.60 TWh, respectively.
该研究描述了对黑麦草秸秆进行硫酸预处理，以评估酸浓度和处理时间对生物燃料生产效率的影响。在每克黑麦草秸秆（在121°C下用2%硫酸（SA）进行化学水解1小时）剂量为15滤纸单位（FPU）的酶处理120小时后，乙醇产量最高。在121°C下用10% SA处理黑麦草秸秆1小时后进行厌氧消化，可获得347.42升甲烷/千克挥发性固体（VS）。在2% SA、121°C、1小时和1% SA、121°C、2小时预处理后的黑麦草秸秆黑暗发酵过程中，分别释放出最多的氢气，为131.99和134.71升氢气/千克VS。如果将欧盟生产的黑麦草秸秆加工成甲烷、氢气、乙醇，2018年的年发电量分别可达9.87太瓦时（TWh）、1.16太瓦时和0.60太瓦时。
