Effect of organosolv extraction on the structure and antioxidant activity of eucalyptus kraft lignin
文献类型：期刊论文
| 作者 | Wei, Xiaoxiao; Liu, Yi; Luo, Yadan; Shen, Zheng; Wang, Shuangfei; Li, Mingfu; Zhang, Liming |
| 刊名 | INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
 |
| 出版日期 | 2021 |
| 卷号 | 187页码:462-470 |
| 关键词 | RADICAL SCAVENGING ACTIVITY FRACTIONATION FEATURES NMR REDUCTION CAPACITY PLATFORM POPLAR POWER |
| 英文摘要 | In this study, three lignin fractions F1, F2, and F3 were obtained from eucalyptus kraft lignin (EKL) by solvent extraction with ethyl acetate, acetone, and acetone/water. The antioxidant activity of these lignin fractions were measured and evaluated by using the DPPH radical scavenging activity, ABTS radical cation scavenging activity and ferric reducing antioxidant power analysis. These lignin fractions were also characterized by applying Gel permeation chromatography, Fourier transform infrared, 31P NMR and 2D HSQC NMR techniques. The three different lignin fractions had rather different average molecular sizes, as well as different phenolic and methoxy functional contents. The ethyl acetate fraction (F1) with the lowest average molecular weight (2342 g/mol) and the highest phenolic hydroxyl content (4.2457 mmol/g) and methoxy groups (6.2714 mmol/g) showed high homogeneity and the highest antioxidant activity. Its DPPH scavenging activity, ABTS center dot+ scavenging activity, and ferric reducing the antioxidant power were 68.67%, 75.57%, and 91.89 mu mol/g, respectively. Moreover, the antioxidant activity of F1 and F2 was found to be higher than that of butylated hydroxytoluene. Therefore, solvent extraction was shown to be an effective way to separate lignin fractions with high homogeneity, high antioxidant activity, which could lead to application of lignin with higher value. |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/21455]  |
| 专题 | 2021专题_期刊论文 |
| 作者单位 | Zhang, LM (corresponding author), Guangxi Univ, Coll Light Ind & Food Engn, Nanning 530004, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Wei, Xiaoxiao,Liu, Yi,Luo, Yadan,et al. Effect of organosolv extraction on the structure and antioxidant activity of eucalyptus kraft lignin[J]. INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES,2021,187:462-470. |
| APA | Wei, Xiaoxiao.,Liu, Yi.,Luo, Yadan.,Shen, Zheng.,Wang, Shuangfei.,...&Zhang, Liming.(2021).Effect of organosolv extraction on the structure and antioxidant activity of eucalyptus kraft lignin.INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES,187,462-470. |
| MLA | Wei, Xiaoxiao,et al."Effect of organosolv extraction on the structure and antioxidant activity of eucalyptus kraft lignin".INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES 187(2021):462-470. |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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