Lignin and Lignans : Advances in Chemistry

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Lignin and Lignans : Advances in Chemistry

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  • 製本 Paperback:紙装版/ペーパーバック版/ページ数 684 p.
  • 言語 ENG
  • 商品コード 9781032917818
  • DDC分類 572.56682

Full Description

Over the past four decades, there has been immense progress in every area of lignin science, ranging from the enzymology of lignin biodegradation, to the delignification of wood fiber during pulping and bleaching, to advances in spectroscopy. Lignin and Lignans: Advances in Chemistry captures the developments that have been achieved by world-class scientists in the most critical aspects of this burgeoning field.

Tools for the characterization of lignin and lignans

After an overview of the topic, the book discusses the significance and comparative performances of the most commonly used chemical degradation methods and presents lignin structural information based on the use of these methods. Next, the book explores spectroscopic methods, including UV-visible absorption, fluorescence, Raman, infra red (IR), near-infrared (NIR), nuclear magenetic resonance (NMR), and heteronuclear NMR spectroscopy. It then compares the results of studies of lignin in situ with studies of isolated lignins.

Predicting reactivity

The authors discuss polymer properties related to thermal stability and molecular motion of lignin in the solid state. They describe applications of electronic structure calculations to the chemistry of lignin, and they explore lignin reactions that occur during the chemical pulping of wood by soda, kraft, AQ, and polysulfide processes.

Chemistry associated with industrial processes

The book describes chemical pulp bleaching, oxidative and reductive lignin-retaining bleaching, and lignin biodegradation. It also examines the application of microorganisms and the enzymes they produce in the manufacturing of chemical and mechanical pulp. The book closes with chapters on photodegradation and chromophore formation and the pharmacological properties of lignans.

Highlighting significant developments on selected topics, this essential reference for those in industry and academia is designed to fuel further research and discovery in this specialized area, especially in the emerging field of biorefining.

Contents

Overview. Determining Lignin Structure by Chemical Degradations. Electronic Spectroscopy of Lignins. Vibrational Spectroscopy. NMR of Lignins. Heteronuclear NMR Spectroscopy of Lignins. Functional Groups and Bonding Patterns in Lignin (Including the Lignin-Carbohydrate Complexes). Thermal Properties of Isolated and in situ Lignin. Reactivity of Lignin-Correlation with Molecular Orbital Calculations. Chemistry of Alkaline Pulping. Chemistry of Pulp Bleaching. The Chemistry of Lignin-Retaining Bleaching: Oxidative Bleaching Agents. The Chemistry of Lignin-Retaining Reductive Bleaching: Reductive Bleaching Agents. Lignin Biodegradation. Biopulping and Biobleaching. The Photochemistry of Lignin. Pharmacological Properties of Lignans.

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