Free radical scavenging activity and reducing power of Acacia nilotica wood lignin

被引：105

作者：

Aadil, Keshaw Ram ^{[1
]}

Barapatre, Anand ^{[1
]}

Sahu, Sudha ^{[1
]}

Jha, Harit ^{[1
]}

Tiwary, Bhupendra Nath ^{[1
]}

机构：

[1] Cent Univ, Dept Biotechnol, Guru Ghasidas Vishwavidyalaya, Bilaspur 495009, Chhattisgarh, India

来源：

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES | 2014年 / 67卷

关键词：

Acacia nilotica; Lignin; Antioxidant activity; ANTIOXIDANT CAPACITY; STIMULATED REDUCTION; IN-VITRO; FRAP; CELLS; ASSAY; DPPH; ABTS;

D O I：

10.1016/j.ijbiomac.2014.03.040

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

070307 [化学生物学]; 071010 [生物化学与分子生物学];

摘要：

Nine different fractions of lignin extracted by alkali, hot water and organosolv methods from Acacia wood powder were assessed for antioxidants activity. Results indicated that methanolic lignin fraction had highest polyphenol content of 393.30 +/- 9.2 (GAE). The oraganosolv lignin with total phenols and phenolic hydroxyl group content exhibited significant antioxidant activity as compared to other lignin fractions. Antioxidant properties of acetone fractions revealed a high antiradical scavenging activity (<90%) with a simultaneous high ferric and molybdate ion reducing capacity. The influence of extraction methods on functional groups of lignin fractions was confirmed by analytical methods and Fourier transform infrared spectroscopy (FTIR) analysis. Whereas the phenolic content showed strong correlation with reducing capacity, the antiradical activity was moderately correlated with phenolic content. A high phenolic hydroxyl groups content of organosolv lignin fractions provides evidence for the presence of active therapeutic antioxidant compounds for their testing as potential value added products for cosmetics and pharmaceutical industries. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：220 / 227

页数：8

共 37 条

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