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      Recent Advances in Sugarcane Industry Solid By-Products Valorization

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          Features of promising technologies for pretreatment of lignocellulosic biomass.

          N. Mosier (2005)
          Cellulosic plant material represents an as-of-yet untapped source of fermentable sugars for significant industrial use. Many physio-chemical structural and compositional factors hinder the enzymatic digestibility of cellulose present in lignocellulosic biomass. The goal of any pretreatment technology is to alter or remove structural and compositional impediments to hydrolysis in order to improve the rate of enzyme hydrolysis and increase yields of fermentable sugars from cellulose or hemicellulose. These methods cause physical and/or chemical changes in the plant biomass in order to achieve this result. Experimental investigation of physical changes and chemical reactions that occur during pretreatment is required for the development of effective and mechanistic models that can be used for the rational design of pretreatment processes. Furthermore, pretreatment processing conditions must be tailored to the specific chemical and structural composition of the various, and variable, sources of lignocellulosic biomass. This paper reviews process parameters and their fundamental modes of action for promising pretreatment methods.
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            Hydrolysis of lignocellulosic materials for ethanol production: a review

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              Pretreatment technologies for an efficient bioethanol production process based on enzymatic hydrolysis: A review.

              Biofuel produced from lignocellulosic materials, so-called second generation bioethanol shows energetic, economic and environmental advantages in comparison to bioethanol from starch or sugar. However, physical and chemical barriers caused by the close association of the main components of lignocellulosic biomass, hinder the hydrolysis of cellulose and hemicellulose to fermentable sugars. The main goal of pretreatment is to increase the enzyme accessibility improving digestibility of cellulose. Each pretreatment has a specific effect on the cellulose, hemicellulose and lignin fraction thus, different pretreatment methods and conditions should be chosen according to the process configuration selected for the subsequent hydrolysis and fermentation steps. This paper reviews the most interesting technologies for ethanol production from lignocellulose and it points out several key properties that should be targeted for low-cost and advanced pretreatment processes. Copyright 2009 Elsevier Ltd. All rights reserved.
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                Author and article information

                Journal
                Waste and Biomass Valorization
                Waste Biomass Valor
                Springer Science and Business Media LLC
                1877-2641
                1877-265X
                March 2017
                August 24 2016
                March 2017
                : 8
                : 2
                : 241-266
                Article
                10.1007/s12649-016-9665-3
                9922b6fa-49a6-4b58-9253-6d95863216dd
                © 2017

                http://www.springer.com/tdm

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