3种木质纤维原料热水抽出物抗氧化性的研究  

Study on Antioxidant Activity of Hot Water Extractives from Different Lignocellulose Materials

作　　者：焦婷 朱北平[1,2] 郭文亮 焦健 韩善明[1] 房桂干[1,6] 谢章红[4,5] JIAO Ting;ZHU Beiping;GUO Wenliang;JIAO Jian;HAN Shanming;FANG Guigan;XIE Zhanghong(Institute of Chemical Industry of Forestry Products,CAF,Jiangsu Key Lab of Biomass Energy and Material,Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources,Key Lab of Chemical Engineering of Forest Products,National Forestry and Grassland Administration,National Engineering Research Center of Low-carbon Processing and Utilization of Forest Biomass,Nanjing,Jiangsu Province,210042;Nanjing Forestry University,Nanjing,Jiangsu Province,210037;Datang Nanjing Environmental Protection Technology Co.,Ltd.,Nanjing,Jiangsu Province,211100;Yibin Paper Industry Co.,Ltd.,Yibin,Sichuan Province,644109;Sichuan Engineering Technology Research Center of Bamboo Pulping and Papermaking,Yibin,Sichuan Province,644109;Shandong Huatai Paper Co.,Ltd.,Dongying,Shandong Province,257335)

机构地区：[1]中国林业科学研究院林产化学工业研究所,江苏省生物质能源与材料重点实验室,江苏省林业资源高效加工利用协同创新中心,国家林业和草原局林产化学工程重点实验室,林木生物质低碳高效利用国家工程研究中心,江苏南京210042 [2]南京林业大学,江苏南京210037 [3]大唐南京环保科技有限责任公司,江苏南京211100 [4]宜宾纸业股份有限公司,四川宜宾644109 [5]四川省竹子制浆造纸工程技术研究中心,四川宜宾644109 [6]山东华泰纸业集团,山东东营257335

出　　处：《中国造纸学报》2024年第3期63-70,共8页Transactions of China Pulp and Paper

基　　金：中央级公益性科研院所基本科研业务费专项资金(CAFYBB2021ZI001-01);宜宾市揭榜挂帅科技项目(2022JB009);泰山产业领军人才工程专项经费(tscy20200213)。

摘　　要：本研究对青皮竹、桉木和杨木3种木质纤维原料进行热水抽提处理(95℃,1 h,浆浓5%),比较了不同热水抽出物的抗氧化性差异,通过紫外可见分光光度计、凝胶渗透色谱仪、热解-气相色谱/质谱联用仪和傅里叶变换红外光谱仪等分析设备和方法,研究了不同木质纤维原料热水抽出物的抗氧化性及化学结构差异。结果表明,桉木热水抽出物的抗氧化性最强(半抑制浓度为51.80 mg/L),优于商业抗氧化剂2,6-二叔丁基-4-甲基苯酚(半抑制浓度为87.99 mg/L);不同木质纤维原料热水抽出物的抗氧化性与其酚羟基含量和共轭结构相关;热水抽出物的主要组分为木质素、多糖等有机大分子合成反应过程的中间产物。In this study,three kinds of lignocellulose materials(bamboo,eucalyptus and poplar)were prepared by hot water extraction(95℃,1 h,pulp consistency of 5%),and the antioxidant activities of their hot water extractives were compared.The difference of chemical structures among three kinds of hot water extractives was studied by means of Ultraviolet spectrophotometry,Gel Permeation Chromatography,Pyrolysis-Gas Chromatography Mass and Fourier Transform Infrared.The results showed that the antioxidant activity of the hot water extractives of eucalyptus was the highest(semi-inhibitory concentration of 51.80 mg/L),which was superior to that of commercial antioxidant 2,6-di-tert-butyl-4-methylphenol(semi-inhibitory concentration of 87.99 mg/L).The antioxidant activities of the hot water extractives of different lignocellulose materials were related to the content of phenolic hydroxyl groups and conjugated structures.The main components of the extractives were the intermediate products during the synthesis of organic macromolecules such as lignin and polysaccharide.

关 键 词：木质纤维 热水抽出物 抗氧化性 酚羟基 

分 类 号：TS79[轻工技术与工程—制浆造纸工程]