Earticle

초록

영어

Lignin, the second most abundant natural compound after cellulose, is a high-molecular weight polymer of phenolic compounds that occurs naturally in plants. On the other hand, lignin is only used by fuel of pulp and paper production process. Many researchers have made efforts on a variety of applications of lignin. In this work, we conducted experiments on the ultraviolet blocking and antioxidant effect of many kinds of commercially available lignin: lignosulfonic
acid (sodium salt), lignosulfonic acid (calcium salt), lignin alkali, lignin alkali (low sulfonate content), and organosolv lignin. In order to improve the lignin properties, lignin was degraded by acidolysis and derivatization followed by reductive cleavage (DFRC) method. We have examined ultraviolet absorption ability using an UV-Visible spectrophotometer. The absorbance of lignin samples was measured at 280 nm, 300 nm, and 340 nm. As a result, organosolv lignin showed
the highest absorbance of the tested commercial lignin. In addition, we carried out DPPH (2,2-diphenyl-1-picrylhydrazyl) assay and Folin-Ciocalteu (FC) assay in order to examine antioxidant properties of lignin. The results of two different assays have been compared.

키워드

저자

• Eun Jin SHIN [ Dept. of Chemical and Biochemical Engineering, Dongguk University ]
• Ji Hyeon KIM [ Dept. of Chemical and Bio Engineering, Kyungwon University, Seongnam 461-701. ]
• Chang Seo PARK [ Dept. of Chemical and Biochemical Engineering, Dongguk University ]
• Keehoon WON [ Dept. of Chemical and Biochemical Engineering, Dongguk University ]

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발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  한국생물공학회 학술대회

• 간기

  반년간

• 수록기간

  1985~2013

• 십진분류

  KDC 476 DDC 576