By Willis A. Wood, Scott T. Kellogg

ISBN-10: 0121820610

ISBN-13: 9780121820619

This quantity covers cellulose and hemicellulose and comprises confirmed and reproducible tools for examine on the topic of the conversion of carbohydrate polymers to usable monomeric devices. Sections at the coaching of biomass fabrics and of substrates are integrated, as are sections on analytical tools and at the purification and assay of enzymes

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Additional info for Biomass Part A: Cellulose and Hemicellulose

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Krassig and E. Siefert, Makrornol. Chem. 14, 1 (1954). 4 A. A. Strepikheev, I. L. Knunyants, N. S. Nikolaeva, and E. M. Mogilevsky, Bull. Acad. Sci. USSR, Div. Chem. Sci. (Engl. ) 6, 769 (1957). 5 G. Jayme, Tappi 44, 299 (1961). [2] CADOXEN SOLVOLYSIS OF CELLULOSE 13 The solvent is green in color, readily dissolves high DP cotton, is stable to atmospheric oxygen, does not cause cellulose degradation, and is used in viscometric and degree of polymerization determinations. Several variations of E W N N have been reported, 5-7 the most prominent of which is the 1 : 1 : 1 iron-tartaric acid-alkali metal complex.

24 D. K. Smith, R. F. Bampton, and W. J. Alexander, Ind. Eng. Chem. Process Des. Dev. 2, 57 (1963). 25 E. Sjostrom and B. Enstrom, Sven. Papperstidn. 69, 469 (1966). 26 G. M. Evans and R. Jeffries, J. Appl. Polym. Sci. 14, 633 (1970). 27 G. M. Evans and R. Jeffries, J. Appl. Polym. Sci. 14, 655 (1970). 28 H. Hampe, B. Phillipp, and J. Baudisch, Faserforsch. Textiltech. 23, 425 (1972). 29 B. S. Varma and H. C. Bhatia, Text. Res. J. 41, 790 (1971). 30 W. Schefer, Text. Res. J. 41, 927 (1971). 31 W.

The supernatant (a clear, colorless solution) is then decanted and lypholized overnight. 5% based on the starting weight of the cellulose used. A typical chromatogram of the cellodextrin mixture obtained by this method is shown in Fig. 1. The cellodextrin mixture from the HC1 method of Miller ~3,~4 as modified by Huebner et al. ,24 gives infrared (Fig. 2a) and 13C NMR spectra (Fig. 3a) which are similar to spectra of cellodextrins (Figs. 2b and 3b) from the modified H2SO4 procedure of Voloch et al.

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Biomass Part A: Cellulose and Hemicellulose by Willis A. Wood, Scott T. Kellogg

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