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Steam pretreatment of Saccharum officinarum L. bagasse by adding of impregnating agents for advanced bioethanol production

TitoloSteam pretreatment of Saccharum officinarum L. bagasse by adding of impregnating agents for advanced bioethanol production
Tipo di pubblicazioneArticolo su Rivista peer-reviewed
Anno di Pubblicazione2016
AutoriVerardi, Alessandra, Blasi A., de Bari I., and Calabrò V.
RivistaEcotoxicology and Environmental Safety
Volume134
Paginazione293 - 300
Data di pubblicazioneJan-12-2016
ISSN01476513
Parole chiaveSugar cane bagasse; Sulfur dioxide; Hydrogen peroxide; Steam explosion; Enzymatic hydrolysis
Abstract

The main byproduct of the sugarcane industry, Saccharum officinarum L. bagasse (sugarcane bagasse, SCB), is widely used as lignocellulose biomass for bio-ethanol (EtOH) production. In this research study, SCB was pretreated by steam explosion (SE) method using two different impregnating agents: sulfur dioxide (SD) and hydrogen peroxide (HP). As matter of fact, the use of impregnating agents improves the performance of SE method, increasing the concentrations of fermentable sugars after enzymatic saccharification, and decreasing the inhibitor compounds produced during the steam pretreatment step. The aim of this study was to investigate and compare the use of the two impregnating agents in various SE-conditions in order to optimize pretreatment parameters. For every pretreatment condition, it has been evaluated: concentration of fermentable sugars, glucose and xylose yields, and the effects of the inhibitor compounds on enzymatic hydrolysis step. The obtained results allow to improve the efficiency of the whole process of bio-EtOH synthesis enhancing the amount of fermentable sugars produced and the eco-sustainability of the whole process. Indeed, the optimization of steam pretreatment leads to a reduction of energy requirements and to a lower environmental impact

URLhttps://www.sciencedirect.com/science/article/abs/pii/S0147651315300439?via%3Dihub
DOI10.1016/j.ecoenv.2015.07.034
Titolo breveEcotoxicology and Environmental Safety
Citation Key9067