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Preparation of Microcrystalline Cellulose by using Sawdust of Tropical Hardwood Nyatoh  

Sung, Yong-Joo (Dept. of Biobased Materials, College of Agriculture and Life Science, Chungnam Natl. Univ.)
Lee, Ji-Young (Dept. of Forest Products/IALS, Gyeongsang National Univ.)
Lee, Han-Ba-Loh (Dept. of Biobased Materials, College of Agriculture and Life Science, Chungnam Natl. Univ.)
Kim, Sung-Jun (Younglim Timber)
Lee, Joon-Woo (Dept. of Environment & Forest Resources, College of Agriculture and Life Science, Chungnam Natl. Univ.)
Kim, Se-Bin (Dept. of Environment & Forest Resources, College of Agriculture and Life Science, Chungnam Natl. Univ.)
Park, Gwan-Soo (Dept. of Environment & Forest Resources, College of Agriculture and Life Science, Chungnam Natl. Univ.)
Publication Information
Journal of Korea Technical Association of The Pulp and Paper Industry / v.43, no.3, 2011 , pp. 59-65 More about this Journal
Abstract
The saw dust of tropical hardwood, Nyatoh(Palaquium Spp.), was used as a raw material for the preparation of the high valued microcrystalline cellulose(MCC). Three pulping methods, soda pulping, Kraft pulping, and acid-sulfite pulping were applied to obtain cellulose from the saw dust. The residual impurities were removed with the additional bleaching processes: (A) $ClO_2{\rightarrow}H_2O_2$; (B) $ClO_2{\rightarrow}O_3$; (C) $O_3$. For the acid treatment for MCC preparation, the $H_2SO_4$, with three concentration, 20%, 40%, 60% were applied and the effects of $H_2SO_4$ concentration on the properties of MCC were evaluated. The results indicated that the MCC obtained by acid-sulfite pulping followed with $O_3$ treatment and 40% $H_2SO_4$ treatment showed less residual lignin, higher brightness and crystallinity than that of Avicel MCC.
Keywords
microcrystalline cellulose; tropical hardwood; saw dust; pulping; crystallinity;
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Times Cited By KSCI : 1  (Citation Analysis)
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