New PDF release: Biomass: Legnin, Pectin, and Chitin: Biomass

By John N. Abelson, Melvin I. Simon, Willis A. Wood, Scott T. Kellogg

ISBN-10: 0121820629

ISBN-13: 9780121820626

The seriously acclaimed laboratory commonplace, Methods in Enzymology , is among the so much hugely revered courses within the box of biochemistry. because 1955, every one quantity has been eagerly awaited, often consulted, and praised by means of researchers and reviewers alike. The sequence comprises a lot fabric nonetheless appropriate this present day - actually an important booklet for researchers in all fields of existence sciences.

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I. , p. 177. Longmans, London, 1964. Under these conditions, no qualitative cl~ages were observed among monomeric acidolysis products. When using purified dioxane, the total yield in acidolysis monomers was, however, increased by about 10%. Lignin preparations were performed with commercial dioxane only. [4] DIOXANE LIGNIN PREPARATIONS 33 Acidolysis Procedurefor Reflux Dioxane Lignin (RDL). Twenty grams of PR is stirred with 250 ml of reagent in a l-liter, two-necked flask fitted with a reflux condenser and a nitrogen bubbler.

NFR 17, 199 (1973). 34 j. Ferry and R. S. Wolf, Arch. Microbiol. 107, 33 (1976). 3s W. F. Hackett, W. J. Connors, T. K. Kirk, and J. G. Zeikus, Appl. Environm. Microbiol. 33, 43 (1977). 30 LIGNIN [3] amended with ~4C-labeledsubstrates, and several of these should work well for many applications. 36,37Examples of vessels used to study biodegradation of radiolabeled substrates have been summarized by Atlas and Bartha. 3s Transformation of Radiolabeled Lignocelluloses by Microorganisms: Biotransformation Products Microorganisms may transform lignin during decay of lignocellulose without oxidizing it completely to carbon dioxide.

11, 507 (1979). [4] P r e p a r a t i o n of Dioxane Lignin Fractions by Acidolysis By BERNARD MONTIES General Principles A convenient method for the preparation of lignin fractions from biomass is provided by the combination of mild solvolytic conditions with a good lignin solvent. Arylalkyl ether bonds, the most frequent intermonomeric linkage occurring in lignins, are cleaved under acid conditions I with the formation of low-molecular-weight phenols and depolymerization of the lignin network and/or the lignin-carbohydrate complexes.

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Biomass: Legnin, Pectin, and Chitin: Biomass by John N. Abelson, Melvin I. Simon, Willis A. Wood, Scott T. Kellogg

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