Correlations of the physicochemical properties of organosolv lignins from Broussonetia papyrifera with their antioxidant activities

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发布日期 2020-08-18

DOI 10.1039/D0SE00940G

影响因子 6.367

作者

Long Xiong, Chang Geun Yoo, Chengyu Dong, Xianzhi Meng, Jun Dai, Chunlei Yang, Jun Yu, Haitao Yang, Xiong Chen

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摘要

To understand the influence of lignin characteristics on their antioxidant activities, lignins were isolated from Broussonetia papyrifera by organosolv pretreatment at different temperatures. The physicochemical features of the lignins were investigated by GPC, 31P NMR and 2D HSQC NMR analyses. An increase of organosolv pretreatment temperature resulted in a decrease of Mw and an increase of the phenolic hydroxyl group content in the isolated lignin. The lignins extracted at higher organosolv pretreatment temperature showed higher antioxidant activity according to the IC50 determined using DPPH and ABTS. The correlations between the physicochemical properties of organosolv lignins and their antioxidant activities were studied. The contents of phenolic hydroxyl groups, especially syringyl and guaiacyl, and double bonds in the Cα position had positive effects on the antioxidant activity of the lignins. On the other hand, Mw and aliphatic hydroxyl groups of the lignins exhibited negative correlations with the antioxidant activity.

期刊推荐

Advances in Colloid and Interface Science

Chemistry of Natural Compounds

Accounts of Chemical Research

Carbon

Journal of the Chinese Chemical Society

Ferroelectrics

Australian Journal of Chemistry

Anti-Corrosion Methods and Materials

Chemical & Pharmaceutical Bulletin

Bulletin of the Chemical Society of Japan

来源期刊

Sustainable Energy & Fuels

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Correlations of the physicochemical properties of organosolv lignins from Broussonetia papyrifera with their antioxidant activities

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来源期刊

Sustainable Energy & Fuels

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