10
views
0
recommends
+1 Recommend
0 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: not found

      Enzymatic delignification: an attempt for lignin degradation from lignocellulosic feedstock

      1 , 2 , 3 , 4 , 5 , 2 , 6 , 4
      RSC Advances
      Royal Society of Chemistry (RSC)

      Read this article at

      ScienceOpenPublisher
      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          Burgeoning population growth and an increased demand for transportation and industrialization has led to the excessive use of fossil fuels, which in turn leads to higher levels of greenhouse gas emissions and contributes to global warming.

          Abstract

          Burgeoning population growth and an increased demand for transportation and industrialization has led to the excessive use of fossil fuels, which in turn leads to higher levels of greenhouse gas emissions and contributes to global warming. At this juncture, biomass-based biofuel production from sustainable resources such as lignocellulosics acts as a better alternative for achieving zero emissions. This in turn necessitates the importance of development of an efficient biomass delignification method, which is an essential prerequisite for the complete biofuel production process. Lignocellulosics such as Saccharum spontaneumcontain 17.46% of lignins and 67% of carbohydrates within its cell walls. To make this enormous amount of carbohydrates more accessible for hydrolysis and for further use in fermentation, lignin degradation through laccase has been carried out. In the present study, response surface methodology (RSM) based on central composite design (CCD) has been used to investigate the effects of the various process parameters. The maximum delignification obtained was 84.67% at 6.21 h of incubation time upon monitoring the initial lignin content of 17.46% of the biomass. Thorough study of the biomass was carried out by elemental composition analysis and energy density measurement. Further structural characteristics of the delignified substrate were analyzed by scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy and X-ray diffraction (XRD) spectroscopy, which supported the efficacy of the delignification process.

          Related collections

          Most cited references47

          • Record: found
          • Abstract: not found
          • Article: not found

          Use of Dinitrosalicylic Acid Reagent for Determination of Reducing Sugar

          G L Miller (1959)
            Bookmark
            • Record: found
            • Abstract: not found
            • Article: not found

            An Empirical Method for Estimating the Degree of Crystallinity of Native Cellulose Using the X-Ray Diffractometer

              Bookmark
              • Record: found
              • Abstract: found
              • Article: not found

              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.
                Bookmark

                Author and article information

                Journal
                RSCACL
                RSC Advances
                RSC Adv.
                Royal Society of Chemistry (RSC)
                2046-2069
                2015
                2015
                : 5
                : 92
                : 75281-75291
                Affiliations
                [1 ]Advanced Technology Development Centre
                [2 ]Indian Institute of Technology
                [3 ]Kharagpur
                [4 ]India
                [5 ]Agricultural and Food Engineering Department
                [6 ]Kharagpur-721302
                Article
                10.1039/C5RA09667G
                239f4ad5-9e16-4e97-abcd-c52f798b56ac
                © 2015
                History

                Comments

                Comment on this article