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논문 기본 정보

자료유형
학술저널
저자정보
Rahmini Rahmini (Chungbuk National University) Sang Gu Yoon (Nature Costech) Ik-Jun Yeon (Korea National University of Transportation) Yong Joo Sung (Chungnam National University) Soo-Jeong Shin (Chungbuk National University)
저널정보
한국펄프·종이공학회 펄프·종이기술 펄프·종이기술 제51권 제5호(통권 제190호)
발행연도
2019.10
수록면
91 - 97 (7page)
DOI
10.7584/JKTAPPI.2019.10.51.5.91

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The competition for biomass between the bioenergy and conventional forest product industries has resulted in increased utilization of unused residual wood biomass. This study investigates the anatomical, chemical and pulping characteristics of red pine root biomass to focus on kraft-pulping raw material. In a chemical compositional analysis, the root biomass was found to have lower Klason lignin and higher polysaccharide contents than the trunk biomass. Meanwhile, in a carbohydrate compositional analysis, the root biomass showed higher cellulose and glucomannan, but lower xylan compared with the trunk biomass. In terms of anatomical features, the cell wall thickness in earlywood was not significantly different (3.8 μm for the trunk cell and 3.3 μm for the root cell), but that in latewood was significantly different (6.3 μm for the trunk cell wall and 3.8 μm for the root cell wall). In kraft pulping, the trunk biomass showed a better response to pulping than the root biomass in terms of the kappa number at the same pulping condition. In terms of fiber morphology, the trunk fiber was longer (2.2 mm) and thinner (30.6 μm) than the root fiber (2.1 mm and 32.9 μm). In terms of the polysaccharide loss during kraft pulping, xylan in the trunk and cellulose in the root was more vulnerable to pulping chemicals; however, glucomannan was the most vulnerable component to kraft pulping. Based on the tensile–tear plot, the root fiber showed better response to beating, but lower fiber strength.

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ABSTRACT
1. Introduction
2. Materials and Methods
3. Results and Discussion
4. Conclusions
Literature Cited

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