Impact of catalytic oil palm fronds (OPF) pulping on organosolv lignin properties

被引：28
|
作者：
Hussin, M. Hazwan [1 ,2 ]
Rahim, Afidah Abdul [1 ]
Ibrahim, Mohamad Nasir Mohamad [1 ]
Perrin, Dominique [2 ]
Yemloul, Mehdi [3 ]
Brosse, Nicolas [2 ]
机构：
[1] Univ Sains Malaysia, Sch Chem Sci, Lignocellulos Res Grp, Minden 11800, Penang, Malaysia
[2] Univ Lorraine, Fac Sci & Tech, Lab Etud & Rech MAt Bois LERMAB, F-54500 Vandoeuvre Les Nancy, France
[3] Aix Marseille Univ, Inst Sci Mol Marseille, Serv 512, F-13397 Marseille, France
来源：
POLYMER DEGRADATION AND STABILITY | 2014年 / 109卷
关键词：
Organosolv lignin; Oil palm fronds; 1,8-Dihydroxyanthraquinone; Phenolic; -OH; Antioxidant; PHYSICOCHEMICAL CHARACTERIZATION; ANTIOXIDANT PROPERTIES; AUTOHYDROLYSIS; ANTHRAQUINONE; CAPACITY;
D O I：
10.1016/j.polymdegradstab.2014.06.016
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
This article sheds light on the structural characteristic and antioxidant activity of the ethanol organosolv lignin extracted from oil palm fronds (OPF) via incorporation of 1,8-dihydroxyanthraquinone during the delignification process. The resulting modified organosolv lignin (DEOL) was studied by P-31 NMR, HSQC, HMBC and GPC. It was proposed that addition of a catalytic amount of 1,8-dihydroxyanthraquinone during pulping process; (1) enhanced the dissolution of lignin and the delignification rate, (2) improved the solubility of the resulting modified lignin (DEOL) by reducing its hydrophobicity properties and (3) improved its antioxidant activity compared to untreated organosolv lignin (EOL) (DEOL: 78% and EOL: 53% of Oxygen Uptake Inhibition (OUI) respectively). It was shown that antioxidant activity was closely related to its average molecular weight and phenolic hydroxyl content. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：33 / 39
页数：7
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