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Study on Antioxidant Activity of Hot Water Extractives from Different Lignocellulose Materials
Received:August 16, 2023  Revised:October 09, 2023
DOI:10.11981/j.issn.1000-6842.2024.03.63
Key Words:lignocellulose;hot water extractives;antioxidant activity;phenolic hydroxyl group
Fund Project: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)。
Author NameAffiliationPostcode
JIAO Ting 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 210042
ZHU Beiping 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 
210037
GUO Wenliang* Datang Nanjing Environmental Protection Technology Co., Ltd., Nanjing, Jiangsu Province, 211100 211100
JIAO Jian 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 210042
HAN Shanming 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 210042
FANG Guigan 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
Shandong Huatai Paper Co., Ltd., Dongying, Shandong Province, 257335 
257335
XIE Zhanghong Yibin Paper Industry Co., Ltd., Yibin, Sichuan Province, 644109
Sichuan Engineering Technology Research Center of Bamboo Pulping and Papermaking, Yibin, Sichuan Province, 644109 
644109
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Abstract:
      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.
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