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Journal of Wood Science

Official Journal of the Japan Wood Research Society

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Determination of the distribution and reaction of polysaccharides in wood cell walls by the isotope tracer technique VII: Double radiolabeling of xylan and pectin in magnolia (Magnolia kobus DC) and comparison of their behaviors during kraft pulping by radiotracer technique

Journal of Wood Science volume 44, pages 106–110 (1998)Cite this article

Abstract

myo-Inositol-[2-3H] and d-glucuronic acid-[6-14C] were administered simultaneously to a growing stem of magnolia (Magnolia kobus DC) to label xylan and pectin, respectively, in the cell wall. Determination of the radioactivity of nitrobenzene oxidation products and sulfuric acid hydrolysates of the newly formed xylem indicated that xylan and pectin were labeled with 3H and 14C, respectively. The doubly labeled wood tissue was treated to kraft pulping, and the radioactivity of the pulping black liquor and treated wood tissue were determined at various stages of the pulping to compare the dissolving behavior between pectin and xylan during the pulping. The results showed that pectin was not dissolved as easily as xylan and was not redeposited on pulp fiber at the late stage of the pulping.

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Authors and Affiliations

  1. School of Agricultural Sciences, Nagoya University, 464-8601, Nagoya, Japan

    Takanori Imai, Hideyuki Goto, Hiroyuki Matsumura & Seiichi Yasuda

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  1. Takanori Imai
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  2. Hideyuki Goto
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  3. Hiroyuki Matsumura
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  4. Seiichi Yasuda
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Correspondence to Takanori Imai.

Additional information

Part of this report was presented at the 40th Lignin Symposium at Tsukuba, October 1995

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Imai, T., Goto, H., Matsumura, H. et al. Determination of the distribution and reaction of polysaccharides in wood cell walls by the isotope tracer technique VII: Double radiolabeling of xylan and pectin in magnolia (Magnolia kobus DC) and comparison of their behaviors during kraft pulping by radiotracer technique. J Wood Sci 44, 106–110 (1998). https://doi.org/10.1007/BF00526254

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