高沸醇有机木质素微粉制备及抗氧化性能
Preparation and antioxidant capacity of high boiling solvent lignin nano-powder.
-
摘要: 以制药生产提取的刺五加根茎剩余物作为原料，采用超临界反溶剂法（SAS）对高沸醇溶剂法所提取的木质素进行纳米化以及抗氧化活性检测实验。结果表明正交优化实验条件：沉淀反应釜温度35 ℃，沉淀反应釜压力30 MPa，温度差+10 ℃，木质素溶液浓度0.5 mg/mL。通过重复性验证实验，最终得到粒径（0.144±0.03）μm纳米级有机木质素。纳米和未纳米有机木质素DPPH自由基清除能力（EC50值）分别为（0.884±0.02）mg/mL、（0.563±0.02）mg/mL，表明纳米有机木质素DPPH自由基清除能力比未纳米有机木质素有大幅提高。Abstract: Lignin was extracted from the Acanthopanax senticosus remainders, coming from pharmaceutical production process, with 1,4-butanediol as an extracting reagent. The supercritical antisolvent (SAS) process was studied to prepare nanoscale lignin and test its antioxidant capacity. The optimal condition by a four-level orthogonal design is as follows: precipitation temperature 35℃, precipitation pressure 30 MPa, temperature difference +10℃ and concentration of lignin solution 0.5 mg/mL. Nanoscale organic lignin with mean particle size of (0.144±0.03) μm was obtained by verification experiments. The EC50 of the nanoscale and non-nanoscale organic lignin on DPPH was (0.563±0.02) mg/mL and (0.884±0.02) mg/mL, respectively. The results indicated that the DPPH scavenging capacity of nanoscale organic lignin is more improved than that of non-nanoscale organic lignin.
-
-
期刊类型引用(2)
1. 王田雨，岳文泽，黄波，钟鹏宇. 未来气候变化情景下浙江省陆地生态系统碳汇估算与保护区识别. 地理学报. 2025(01): 183-199 . 
百度学术
2. 刘金勋，卢学鹤，朱求安，袁文平，苑全治，张臻，国庆喜，DEERINGCarol. 陆地生态系统模拟研究中IBIS模型开发应用的回顾和展望. Journal of Resources and Ecology. 2022(01): 2-16 . 百度学术
其他类型引用(8)
计量
- 文章访问数: 2136
- HTML全文浏览量: 141
- PDF下载量: 57
- 被引次数: 10
下载:
