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Physico-chemical alternatives in lignocellulosic materials in relation to the kind of component for fermenting purposes

Abstract: 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.

 Authorship: Coz A., Llano T., Cifrián E., Viguri J., Maican E., Sixta H.,

 Fuente: Materials, 2016, 9 (7), 574

 Publisher: MDPI AG

 Publication date: 15/07/2016

 No. of pages: 37

 Publication type: Article

 DOI: 10.3390/ma9070574

 ISSN: 1996-1944

 European project: info:eu-repo/grantAgreement/EC/FP7/311935/EU/New tailor-made biopolymers produced from ignocellulosic sugars waste for highly demanding fire-resistant/BRIGIT/