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
오류제보하기
The compositions of residual extractives in woodmeal, unbleached and oxygen-delignified aspen kraft pulps were investigated with gas chromatography(GC) and gas chromatography-mass spectrometry(GC-MS) with focus on fate of extractives in kraft pulping and oxygen delignification.
Steryl esters and shorter retention time (shorter than palmitic acid) extractives were main extractives in aspen woodmeal. Shorter retention time extractives were well removed in kraft pulping. Sterol esters were hydrolyzed to sterols and fatty acids. Sterols and fatty acids were two major extractives classes in unbleached kraft pulps. Linoleic acid was main fatty acids in unbleached pulps compared with palmitic acid which is generally found in aspen woodmeal.
Sterolsand fatty acids were also two major extractives classes in oxygen-delignified kraft pulps. However, linoleic acid was well removed in oxygen delignification.
Steryl esters and shorter retention time (shorter than palmitic acid) extractives were main extractives in aspen woodmeal. Shorter retention time extractives were well removed in kraft pulping. Sterol esters were hydrolyzed to sterols and fatty acids. Sterols and fatty acids were two major extractives classes in unbleached kraft pulps. Linoleic acid was main fatty acids in unbleached pulps compared with palmitic acid which is generally found in aspen woodmeal.
Sterolsand fatty acids were also two major extractives classes in oxygen-delignified kraft pulps. However, linoleic acid was well removed in oxygen delignification.
목차
ABSTRACT
1. Introduction
2. Experimental
3. Results and Discussion
4. Conclusions
Literature Cited
참고문헌 (6)
참고문헌 신청
[학술지(정기간행물)] - / 2004 / Impact of residual extractives on lignindetermination in kraft pulps 24
[학술지(정기간행물)] - / 2000 / Classical Test Method T204 cm-97, Solvent extractives of wood and pulp
[학술지(정기간행물)] - / 2001 / Gas Chromatography-Mass SpectrometryMethod for the Simultaneous Determinationof Wood Extractive Compounds in QuakingAspen
[학술지(정기간행물)] - / 1998 / Analysis of lipophilicextractives from wood and pitch deposits bysolid-phase extraction and gas chromatography
[학술지(정기간행물)] - / 1991 / An analysis of the acetone extractives of thewood and bark from fresh trembling aspen Implications for deresination and pitchcontrol
[학술지(정기간행물)] - / 2000 / Classical Test Method T204 cm-97, Solvent extractives of wood and pulp
[학술지(정기간행물)] - / 2001 / Gas Chromatography-Mass SpectrometryMethod for the Simultaneous Determinationof Wood Extractive Compounds in QuakingAspen
[학술지(정기간행물)] - / 1998 / Analysis of lipophilicextractives from wood and pitch deposits bysolid-phase extraction and gas chromatography
[학술지(정기간행물)] - / 1991 / An analysis of the acetone extractives of thewood and bark from fresh trembling aspen Implications for deresination and pitchcontrol
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UCI(KEPA) : I410-ECN-0101-2009-586-018086182