Coz Alberto, Llano Tamara, Cifrián Eva, Viguri Javier, Maican Edmond, Sixta Herbert
Green Engineering and Resources, Department of Chemistry and Process and Resource Engineering, University of Cantabria, Avda. Los Castros s/n, Santander 39005, Spain.
Faculty of Biotechnical Systems Engineering, Politehnica University of Bucharest, 313 Splaiul Independentei, Sector 6, Bucuresti 060042, Romania.
Materials (Basel). 2016 Jul 15;9(7):574. doi: 10.3390/ma9070574.
The complete bioconversion of the carbohydrate fraction is of great importance for a lignocellulosic-based biorefinery. However, due to the structure of the lignocellulosic materials, and depending basically on the main parameters within the pretreatment steps, numerous byproducts are generated and they act as inhibitors in the fermentation operations. In this sense, the impact of inhibitory compounds derived from lignocellulosic materials is one of the major challenges for a sustainable biomass-to-biofuel and -bioproduct industry. In order to minimise the negative effects of these compounds, numerous methodologies have been tested including physical, chemical, and biological processes. The main physical and chemical treatments have been studied in this work in relation to the lignocellulosic material and the inhibitor in order to point out the best mechanisms for fermenting purposes. In addition, special attention has been made in the case of lignocellulosic hydrolysates obtained by chemical processes with SO₂, due to the complex matrix of these materials and the increase in these methodologies in future biorefinery markets. Recommendations of different detoxification methods have been given.
对于基于木质纤维素的生物精炼厂而言，碳水化合物部分的完全生物转化至关重要。然而，由于木质纤维素材料的结构，并且基本上取决于预处理步骤中的主要参数，会产生大量副产物，它们在发酵操作中充当抑制剂。从这个意义上讲，源自木质纤维素材料的抑制性化合物的影响是可持续的生物质转化为生物燃料和生物产品行业面临的主要挑战之一。为了尽量减少这些化合物的负面影响，已经测试了许多方法，包括物理、化学和生物过程。在这项工作中，针对木质纤维素材料和抑制剂研究了主要的物理和化学处理方法，以便指出用于发酵目的的最佳机制。此外，由于这些材料的复杂基质以及这些方法在未来生物精炼厂市场中的增加，对于通过使用SO₂的化学过程获得的木质纤维素水解产物给予了特别关注。给出了不同解毒方法的建议。
