지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
이용수
초록· 키워드
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Xylanase (X) derived from Aurreobasidium pullulans and laccase-mediator system (LM) using Trichophyton sp. LKY-7 laccase (TrL) and N-hydroxy-2-pyridone analogue (NHP) as a mediator were applied in hardwood kraft pulp (HwKP) bleaching. The individual and the synergistic effects of X and LM stage were investigated in the enzymatic bleaching of HwKP. Also, the effects of subsequent alkaline extraction (E) and alkaline/hydrogen peroxide treatment (P) were examined. In X or LM treatment alone, an appreciable bleaching effect of HwKP was not observed, whereas subsequent E or P stage enhanced the increase of brightness and the decrease of kappa number. Especially, P stage significantly enhanced the bleaching effect of pulp. Bleaching of HwKP with XLM sequentially gave significantly higher pulp brightness and lower kappa number than that obtained after the treatment of HwKP with X+LM simultaneously. When HwKP was sequentially treated with XLM followed by P stage, the brightness increased by about 11% ISO and the kappa number decreased by about 3.6 in comparison with the initial pulp. Xylanase and laccase were strongly inactivated by NHP both in the absence and the presence of pulp.
목차
ABSTRACT
1. Introduction
2. Materials and Methods
3. Results and Discussion
4. Conclusions
Literature Cited
참고문헌 (20)
참고문헌 신청
1. [학술지(정기간행물)] - Kantelinen, A. / 1993 / Proposed mechanism of the enzymatic bleaching of kraft pulps with xylanases / Holzforschung 47 : 318 ~ 324
2. [학술지(정기간행물)] - Wong, K.K.Y. / 1997 / Mechanisms of xylanase aided bleaching of kraft pulp, Part 1: process parameters / Appita J 50 : 415 ~ 422
3. [학술지(정기간행물)] - Bourbonnais, R. / 1996 / Enzymatic delignification of kraft pulp using laccase and a mediator / TAPPI. J 79 (6) : 199 ~ 204
4. [학술지(정기간행물)] - Niku-Paavola, M.L. / 1994 / Effects of lignin-modifying enzymes on pine kraft pulp / Bioresour. Technol 50 : 73 ~ 77
5. [학술지(정기간행물)] - Bermek, H. / 2000 / Pulp bleaching with manganese peroxidase and xylanase : a synergistic effect / TAPPI J 83 (10) : 69 ~
2. [학술지(정기간행물)] - Wong, K.K.Y. / 1997 / Mechanisms of xylanase aided bleaching of kraft pulp, Part 1: process parameters / Appita J 50 : 415 ~ 422
3. [학술지(정기간행물)] - Bourbonnais, R. / 1996 / Enzymatic delignification of kraft pulp using laccase and a mediator / TAPPI. J 79 (6) : 199 ~ 204
4. [학술지(정기간행물)] - Niku-Paavola, M.L. / 1994 / Effects of lignin-modifying enzymes on pine kraft pulp / Bioresour. Technol 50 : 73 ~ 77
5. [학술지(정기간행물)] - Bermek, H. / 2000 / Pulp bleaching with manganese peroxidase and xylanase : a synergistic effect / TAPPI J 83 (10) : 69 ~
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UCI(KEPA) : I410-ECN-0101-2015-580-001298104