A 2 D NMR investigation of the heterogeneity of distribution of diarylpropane structures in extracted Pinus radiata lignins

Holzforschung

Volumn 50, Issue 2, 1996, Pages 161-164

  Ede, Richard M ^a   Ralph, John ^b,c   Torr, Kirk M ^d   Dawson, Bernard S W ^d  

^a UNIVERSITY OF WAIKATO   (New Zealand)

^b U S DAIRY FORAGE RESEARCH CENTER   (United States)

^c UNIVERSITY OF WISCONSIN MADISON   (United States)

^d SCION   (New Zealand)

Author keywords

1 structures; 2D NMR, HOHAHA; Milled wood lignin; Pinus radiata

Indexed keywords

MOLECULAR STRUCTURE; NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY;

DISTRIBUTION; EXPERIMENTAL STUDY; TWO DIMENSION SPECTROMETRY;

LIGNIN;

EID: 0030375049     PISSN: 00183830     EISSN: None     Source Type: Trade Journal    
DOI: None     Document Type: Article

References (17)

1. Bax, A. and D. G. Davis. 1985. MLEV-17-based two-dimensional homonuclear magnetization transfer spectroscopy. J. Magn. Reson. 65 (2): 355-360.
2. Bax, A. and S. Subramanian. 1986. Sensitivity-enhanced two-dimensional heteronuclear shift correlation NMR spectroscopy. J. Magn. Reson. 67(3): 565-569.
3. Berndtsson, I., B. L. Khanna and K. Lundquist. 1980. Synthesis of the erythro and threo forms of 1,2-bis(4-hydroxy-3-methoxyphenyl)-1,3-propanediol. Acta Chem. Scand. B 34 (6): 453-455.
4. Björkman, A. 1956. Studies on finely divided wood. Part I. Extraction of lignin with neutral solvents. Svensk Papperstidn. 59 (13): 477.
5. Bland, D.E. and M. Menshun. 1973. Effect of milling and alkali treatments on the accessibility of the lignins of Pinus radiata and Eucalyptus regnans. Holzforschung 27 (2): 33-35.
6. Ede, R. M. and G. Brunow. 1992. Application of two-dimensional homo- and heteronuclear correlation NMR spectroscopy to wood lignin structure determination. J. Org. Chem. 57: 1477-1480.
7. Ede, R. M., G. Brunow, L. K. Simola and J. Lemmetyinen. 1990. Two-dimensional proton-proton chemical shift correlation and J-resolved NMR studies on isolated and synthetic lignins. Holzforschung 44 (2): 95-101.
8. Ede, R. M. and I. Kilpeläinen. 1995. Homo- and hetero-nuclear 2 D NMR techniques: Unambiguous structural probes for non-cyclic benzyl aryl ethers in soluble lignin samples. Res. Chem. Intermed. 21 (3-5), 313-328.
9. Ede, R.M. and J. Ralph. 1995. An assessment of the use of model compound data for the assignment of two-dimensional NMR spectra of lignins. Proc. 8th Int. Symp. Wood Pulp. Chem., Helsinki, III, 97-102.
10. Fukagawa, N., G. Meshitsuka and A. Ishizu. 1991. A two dimensional NMR study of birch milled wood lignin. J. Wood Chem. Technol. 11 (3): 373-396.
11. Gellerstedt, G. and L. Zhang. 1991. Reactive lignin structures in high yield pulping. Part 1. Structures of the 1,2-diarylpropane-1,3-diol type. Nordic Pulp Paper Res. J. 6 (3): 136-139.
12. Higuchi, T. 1990. Lignin biochemistry: Biosynthesis and biodegradation. Wood Sci. Technol. 24: 23-63.
13. Kilpeläinen, I., J. Sipilä, G. Brunow, K. Lundquist and R. M. Ede. 1994. Application of two-dimensional NMR spectroscopy to wood lignin structure determination: Identification of some minor structural units of hard- and softwood lignins. J. Ag. Food Chem. 42 (12): 2790-2794.
14. Lapierre, K., B. Pollet and B. Monties. 1991. Heterogeneous distribution of diarylpropane structures in spruce lignins. Phytochemistry 30 (2): 659-662.
15. Li, S., K. Lundquist and N. Soubbotin. 1994. Separation of diastereoisomers of lignin model compounds of the 1,3-diol type as borate complexes by ion-exchange chromatography. Holzforschung 48 (6): 509-511.
16. Lundquist, K. 1979. NMR studies of lignins. 3. Proton NMR spectroscopic data for lignin model compounds. Acta Chem. Scand., B 33 (6): 418-20.
17. Torr, K.M., B.S.W. Dawson, R.M. Ede and J. Singh. 1996. Surface changes on acetylation and exposure to ultraviolet radiation of Pinus radiata using x-ray photo-electron spectroscopy. Holzforschung 50.