Variation in the chemical composition of wheat straw: the role of tissue ratio and composition

Collins, Samuel; Wellner, Nikolaus; Bordonado, Isabel Martinez; Harper, Andrea; Miller, Charlotte; Bancroft, Ian; Waldron, Keith
September 2014
Biotechnology for Biofuels;2014, Vol. 7 Issue 1, p1
Academic Journal
Background Wheat straw is an attractive substrate for second generation ethanol production because it will complement and augment wheat production rather than competing with food production. However, like other sources of lignocellulosic biomass, even from a single species, it is heterogeneous in nature due to the different tissues and cell types, and this has implications for saccharification efficiency. The aim of this study has been to use Fourier transform infrared (FTIR) spectroscopy and Partial least squares (PLS) modelling to rapidly screen wheat cultivars for the levels of component tissues, the carbohydrate composition and lignin content, and the levels of simple cross-linking phenolics such as ferulic and diferulic acids. Results FTIR spectroscopy and PLS modelling was used to analyze the tissue and chemical composition of wheat straw biomass. Predictive models were developed to evaluate the variability in the concentrations of the cell wall sugars, cell wall phenolics and acid-insoluble lignin. Models for the main sugars, phenolics and lignin were validated and then used to evaluate the variation in total biomass composition across 90 cultivars of wheat grown over two seasons. Conclusions Whilst carbohydrate and lignin components varied across the varieties, this mainly reflected differences in the ratios of the component tissues rather than differences in the composition of those tissues. Further analysis indicated that on a mol% basis, relative levels of sugars within the tissues varied to only a small degree. There were no clear associations between simple phenolics and tissues. The results provide a basis for improving biomass quality for biofuels production through selection of cultivars with appropriate tissue ratios.


Related Articles

  • Adsorption of congo red using ethylenediamine modified wheat straw. Zhanwu Wang; Pan Han; Yubin Jiao; Dan Ma; Chanchan Dou; Runping Han // Desalination & Water Treatment;Jun2011, Vol. 30 Issue 1-3, p195 

    The natural wheat straw (NWS) was modified by ethylenediamine and the modified wheat straw (MWS) was used as adsorbent for removal of congo red (CR) from aqueous solution. Analysis of FTIR and nitrogen element showed that amino group was introduced to NWS. A batch system was applied to study the...

  • Biosorption of methyl orange from aqueous solutions using cationic surfactant-modified wheat straw in batch mode. Yinyin Su; Yubin Jiao; Chanchan Dou; Runping Han // Desalination & Water Treatment;Sep2014, Vol. 52 Issue 31-33, p6145 

    In this paper, the characterization of wheat straw (WS) and cetyl trimethyl ammonium bromide (CTAB) modified wheat straw (MWS) was determined by Fourier transform infrared spectroscopy (FTIR) and X-ray fluorescence (XRF), indicating that CTAB had entered into the structure of WS successfully....

  • Evaluating Lignin-Rich Residues from Biochemical Ethanol Production of Wheat Straw and Olive Tree Pruning by FTIR and 2D-NMR. Santos, José I.; Martín-Sampedro, Raquel; Fillat, Úrsula; Oliva, José M.; Negro, María J.; Ballesteros, Mercedes; Eugenio, María E.; Ibarra, David // International Journal of Polymer Science;3/26/2015, Vol. 2015, p1 

    Lignin-rich residues from the cellulose-based industry are traditionally incinerated for internal energy use. The future biorefineries that convert cellulosic biomass into biofuels will generate more lignin than necessary for internal energy use, and therefore value-added products from lignin...

  • Biosorption of Pb(II) and Cr(III) from aqueous solutions: breakthrough curves and modeling studies. Farooq, Umar; Athar, Makshoof; Khan, Misbahul; Kozinski, Janusz // Environmental Monitoring & Assessment;Jan2013, Vol. 185 Issue 1, p845 

    The sorption capacity parameters obtained for batch studies provide useful information about biosorption system. However, such data fail to explain the process under continuous-flow conditions. The present study is an attempt to explore the biosorption of Pb(II) and Cr(III) by straw from local...

  • Structural Changes of Lignin from Wheat Straw by Steam Explosion and Ethanol Pretreatments. Cheng Pan; Zhong Liu; Xiaoxiao Bai; Lanfeng Hui // BioResources;2016, Vol. 11 Issue 3, p6477 

    Effects of the pretreatment of wheat straw by steam explosion and ethanol were evaluated relative to the structural changes of lignin from the pretreated pulp. The lignin from steam explosion pulp (LS), lignin from steam blasting residual liquid (LL), lignin from ethanol pretreatment pulp (LE),...

  • Adsorption behavior of light green anionic dye using cationic surfactant-modified wheat straw in batch and column mode. Su, Yinyin; Zhao, Binglu; Xiao, Wei; Han, Runping // Environmental Science & Pollution Research;Aug2013, Vol. 20 Issue 8, p5558 

    An agricultural by-product, natural wheat straw (NWS), was soaked in 1 % cationic surfactant (hexadecylpyridinium bromide, CPB) solution for 24 h (at 293 K), and modified wheat straw (MWS) was obtained. Analysis of FTIR, XFR, and nitrogen element showed that CPB was adsorbed onto surface of NWS....

  • Physicochemical Characterization of Wheat Straw during a Continuous Pretreatment Process. Molina-Guerrero, Carlos Eduardo; de la Rosa, Guadalupe; Castillo-Michel, Hiram; Sánchez, Arturo; García-Castañeda, Concepción; Hernández-Rayas, Angélica; Valdez-Vazquez, Idania; Suarez-Vázquez, Santiago // Chemical Engineering & Technology;Jul2018, Vol. 41 Issue 7, p1350 

    Abstract: The changes occurring during the depolymerization of lignocellulosic biomasses are not yet fully understood. Synchrotron micro‐Fourier transform infrared (µ‐FTIR), Raman spectroscopy (RS), X‐ray diffraction (XRD), and X‐ray fluorescence (XRF) were applied for...

  • Rapid estimation of sugar release from winter wheat straw during bioethanol production using FTIR-photoacoustic spectroscopy. Bekiaris, Georgios; Lindedam, Jane; Peltre, Clément; Decker, Stephen R.; Turner, Geoffrey B.; Magid, Jakob; Bruun, Sander // Biotechnology for Biofuels;2015, Vol. 8 Issue 1, p1 

    Background: Complexity and high cost are the main limitations for high-throughput screening methods for the estimation of the sugar release from plant materials during bioethanol production. In addition, it is important that we improve our understanding of the mechanisms by which different...

  • Physical and Mechanical Properties of Modified Wheat Straw-Filled Polyethylene Composites. Wentao Zhang; Jishuang Chen; Bekele, Lemma Dadi; Yiliang Liu; Duns, Gregory Joseph; Leilei Jin // BioResources;2016, Vol. 11 Issue 2, p4472 

    This study investigates the effect of modified wheat straw on the physical and mechanical properties of modified wheat straw/high-density polyethylene (MWS/HDPE) straw-plastic composites. Wheat straw fibers with particle sizes in the range of 0.25 to 0.50 mm were modified with caprolactam (CPL)....


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics