[1]郑志锋,邹局春,陈 浪,等.核桃壳木质素的~1H-NMR分析[J].西北林学院学报,2007,22(02):131-133.
 ZHENG Zhi-feng,ZOU Ju-chun,Chen Lang,et al.Analysis of Walnut Shell Lignin by ~1H-NMR by ~1H-NMR[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2007,22(02):131-133.
点击复制

核桃壳木质素的~1H-NMR分析()
分享到:

《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第22卷
期数:
2007年02期
页码:
131-133
栏目:
林产化学
出版日期:
2007-03-30

文章信息/Info

Title:
Analysis of Walnut Shell Lignin by ~1H-NMR by ~1H-NMR
文章编号:
1001-7461(2007)02-0131-03
作者:
郑志锋1 邹局春2 陈 浪2 张宏健2* 凌 敏2
(1.东北林业大学,黑龙江 哈尔滨 150040; 2. 西南林学院,云南 昆明 650224)
Author(s):
ZHENG Zhi-feng1; ZOU Ju-chun2; Chen Lang2; Zhang Hong-jian2*; Ling Min2
(1.Northeast Forestry University; Haerbin Heilongjiang 150040; China; 2.Southwest Forestry University; Kunming; Yunnan 650224; China)
关键词:
核桃壳 木质素 元素分析 甲氧基 1H-NMR
Keywords:
walnut shell lignin element analysis methoxyl groups 1H-NMR
分类号:
S789.5
文献标志码:
A
摘要:
在核桃壳磨木木质素(MW L)提取纯化的基础上,对纯化的核桃壳磨木木质素进行了C、H、O及OCH3含量的测定,并利用1H-NMR对核桃壳木质素基本化学结构进行研究。结果表明:(1)核桃壳木质素的C、H、O含量分别为67.15%、5.73%和27.12%,甲氧基含量为18.19%;(2)核桃壳木质素C9经验式为C9H9.22O1.99(OCH3)1.05,其C9单元结构的相对分子量为181.61;(3)核桃壳木质素属GS型木质素,其中G型木质素占多数,为80.68%;(4)核桃壳木质素中酚羟基(OHph)和脂肪族羟基(OHaliph)分别占总羟基数的32.21%和67.79%;(5)核桃壳木质素中存在较多的-βO-4、-β5和β-β结构。
Abstract:
The contents of C,H,O and methoxyl groups of MWL the purified milled wood lignin (MWL) extracted from walnut shell (Juglans sigillata) were determined and the basic chemical groups of MWL were characterized by 1H-NMR. The results showed that: (1) The contents of C,H,O and methoxyl groups of MWL were 67.15%, 5.73%, 27.12% and 18.19% respectively; (2) The average per C9 unit formulae of MWL was C9H9.22O1.99(OCH3)1.05, and the molecular weights of C9 unit formulae was 181.61; (3) MWL of walnut shell belongs to guaiacyl-syringyl (GS) lignin, but mainly guaiacyl lignin with the content of 80.68%; (4) Based on the total amounts of hydroxyl groups, the ratios of OHph and OHaliph were 32.21% and 67.79% respectively. (5) There were a lot of bonds of β-O-4, β-5 and β-β in walnut shell lignin.

参考文献/References:

[1] 张宏健,张军华,邱荣强,等. 核桃壳胶粘剂化学背景的探讨[J]. 林业科学,2005, 41 (3) : 125-128.
[2] 中野准三著.高洁,鲍禾,李忠正译. 木质素的化学-基础与应用[M]. 北京:轻工业出版社,1988.
[3] 刘贵生. 木素官能团分析[M]. 哈尔滨:东北林业大学出版社,1996.
[4] 李坚. 木材波谱学[M]. 北京:科学出版社,2003. 122-165.
[5] Salud E C a, Faix O. The isolation and characterization of lignins of Shorea species[J]. Holzforschung, 1980, 34: 113-121.
[6] 秦特夫. 杉木和“三北”一号杨磨木木质素化学官能团特征的研究[J]. 林业科学,1999, 35 (3) : 69-75.
[7] Faix O, Grünwald, Beinhoff O. Determination of phenolic hydroxyl group content of milled wood lignins (MWL′s) from different botanical origins using selective aminolysis, FTIR, 1H-NMR and UV spectroscopy[J]. Holzforschung, 1992,46(5): 425-432.
[8] 蒋挺大. 木质素[M]. 北京:化学工业出版社,2001. 16-32.

备注/Memo

备注/Memo:
收稿日期:2006-04-24 修回日期:2006-06-12
基金项目:国家自然科学基金(30371132)
作者简介:郑志锋(1975-) ,男,福建福安人,在读博士,讲师,主要从事木材胶粘剂与生物质材料的科研教学工作。
*通讯作者:张宏健(1952-) ,男,教授,博士生导师,主要从事人造板与木材胶粘剂的科研教学工作。
更新日期/Last Update: