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Pubmed ID :28602987
Publication Date : //

Modification of oil palm fronds lignin by incorporation of m-cresol for improving structural and antioxidant properties.


Lignin extracted from oil palm fronds (OPF) underwent chemical modification by incorporating m-cresol into the lignin matrix. This study reports on the physicochemical properties and antioxidant activity of unmodified autohydrolyzed ethanol organosolv lignin (AH EOL) and the modified autohydrolyzed ethanol organosolv lignin (AHC EOL). The lignin samples were analyzed by FTIR, H and C NMR spectroscopy, 2D NMR: HSQC spectroscopy, CHN analysis, molecular weight distribution analysis; GPC and thermal analysis; DSC and TGA. The lignin modification has reduced the hydrophobicity of its complex structure by providing better quality lignin with smaller fragments and higher solubility rate in water (D: 42%>D: 25%). It was revealed that the modification of lignin has improved their structural and antioxidant properties, thus venture their possible applications.

Authors : Sa'don Nurul Atiqah , Rahim Afidah Abdul , Ibrahim Mohamad Nasir Mohamad , Brosse Nicolas , Hussin M Hazwan ,

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