title: [Analysis of the association between cellulose and lignin by carbon 13 tracer method].
abstract: In order to further understand the association between cellulose and lignin in gymnosperm plant, carbohydrate part of the lignin-carbohydrate complexes was analyzed. Cellulose precursor, i.e., (6(-13) C) uridine diphoshphate glucose, was synthesized, and injected into a living ginkgo tree with lignin inhibitor AOPP and exogenous lignin precursor. The results from the determination of 13C abundance indicate that the deposition of cellulose in the cell wall is very fast and effective in the primary wall. The analysis of high resolution solid nuclear magnetic 13C NMR spectra confirms that the bonds between C5 position of glucose units in cellulose and alpha-carbons of lignin side chain are benzyl ether linkage.
authors.affiliation: School of Pulping & Papermaking Engineering, Hubei University of Technology, Wuhan 430068, China. Mingjia0106@163.com
authors.forename: Song-ming
authors.initials: SM
authors.lastname: Xiang
authors.affiliation: School of Pulping & Papermaking Engineering, Hubei University of Technology, Wuhan 430068, China.
authors.forename: Yi-min
authors.initials: YM
authors.lastname: Xie
authors.affiliation: School of Pulping & Papermaking Engineering, Hubei University of Technology, Wuhan 430068, China.
authors.forename: Hai-tao
authors.initials: HT
authors.lastname: Yang
authors.affiliation: School of Pulping & Papermaking Engineering, Hubei University of Technology, Wuhan 430068, China.
authors.forename: Lan
authors.initials: L
authors.lastname: Yao
mesh_terms: D002247:Carbon Isotopes / Q000032:analysis; D002473:Cell Wall; D002482:Cellulose / Q000032:analysis*; D020441:Ginkgo biloba; D008031:Lignin / Q000032:analysis*; D009682:Magnetic Resonance Spectroscopy
chemical_list: D002247:Carbon Isotopes; D002482:Cellulose; D008031:Lignin