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요약정보
不同来源木质素抗氧化活性研究 / Chemical Structure and Antioxidant Activity of Different Sources of Lignin
Resource Type
Academic Journal
Authors
朱梦妮
;
田维珍
;
王兴
;
周景辉
;
李尧
;
ZHU Mengni
;
TIAN Weizhen
;
WANG Xing
;
ZHOU Jinghui
;
LI Yao
Source
中国造纸学报 / Transactions of China Pulp and Paper
. 34(4):14-20
Subject
木质素
结构分析
抗氧化活性
Language
Chinese
ISSN
1000-6842
Online Access
Scopus
Find it @ DONGA
초록
以玉米秸秆纤维素乙醇残渣、芦苇、核桃壳和稻壳4种农业废弃物为原料,采用氢氧化钠法分别提取木质素.通过凝胶渗透色谱、傅里叶变换红外光谱、核磁共振等分析手段对获得的木质素进行结构分析,探究了不同原料来源木质素的化学结构差异与其抗氧化活性和生物活性之间的关系.结果 表明,H型结构单元越多,木质素总酚羟基含量也越高,且木质素总酚羟基含量与其抗氧化活性(DPPH自由基清除能力和还原能力)和生物活性具有正相关关系.当木质素浓度为0.4 mg/mL时,4种不同来源木质素对DP-PH自由基的清除率在14.9% ~53.5%之间.4种不同来源木质素均具有提高小鼠成骨细胞活力的效果;在浓度为3.2 mg/mL时,玉米秸秆纤维素乙醇残渣木质素可使小鼠成骨细胞活力达到710%,远高于其他3种木质素.
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