Extraction method for lignin in moringa seed husks and application
An extraction method and technology of Moringa oleifera seeds, which are applied in the field of lignin extraction from Moringa oleifera seed husks, can solve problems such as insufficient utilization of moringa oleifera seed husks, and achieve the effects of facilitating characterization and analysis and improving purity
Inactive Publication Date: 2019-11-05
SOUTHWEST UNIVERSITY
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Problems solved by technology
[0006] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a method for extracting lignin
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The invention relates to the technical field of lignin extraction and particularly provides an extraction method for lignin in moringa seed husks. The method comprises the steps that raw materials arepre-treated, an alkaline process or a formic acid process or a toluenesulfonic acid process is adopted for extracting the lignin in the moringa seed husks, the lignin is purified to remove impurities, after the structure of the lignin is represented, the moringa seed husk lignin products obtained through extraction in the three processes have similar chemical structures and properties and are GSHlignin, the lignin extracted through the three processes has high oxidation resistance, the oxidation resistance of the lignin is obviously higher than that of a commercial antioxidant BHT, the lignin can be used as a natural antioxidant, and the moringa seed husks are conveniently recycled.
Description
technical field [0001] The invention relates to the field of lignin extraction, in particular to a method for extracting lignin from Moringa oleifera seed shell and its application. Background technique [0002] Lignocellulosic biomass has been recognized for the production of chemicals and biomaterials. Lignin is the second most abundant natural polymer, comprising 10-25% of lignocellulosic biomass. Lignin is an aromatic polymer composed of three basic structural units of guaiacylphenylpropane (G), syringylphenylpropane (S) and p-hydroxyphenylphenylpropane (H). A large number of active groups such as methoxy, hydroxyl, and carboxyl can participate in a variety of chemical reactions, and are widely used in synthetic resins, hydrogels, stabilizers, and dispersants. [0003] There are a variety of lignin sources to choose from, such as jute, bamboo, cotton and wood pulp. The extraction methods of lignin mainly include inorganic solvent method and organic solvent method. Ino...
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Login to view more IPC IPC(8): C08H7/00A23L3/3472
CPCA23L3/3472A23V2002/00C08H6/00A23V2250/21
Inventor 钟金锋覃小丽李丰泉曾凡坤阚建全刘雄张甫生郑炯索化夷
Owner SOUTHWEST UNIVERSITY
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