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Analysis of syringyl and guaiacyl (S/G) ratio in lignin

Author: Spark, A ; Govender, M ; Bush, TDL Date: Dec 2006 The authors aim to develop a quick and accurate method to measure S/G ratio, characterise and identify the acidolysis products and validate the new S/G ratio method. Experiments and results are shown Read more
Centrifugal washing and recovery as an improved method for obtaining lignin precipitated from South African kraft mill black liquor

Author: Namane, M ; Sithole, Bishop B ; Ramjugernath, D Date: Oct 2015 This study describes centrifugal recovery as an improved method for collection of lignin isolated from black liquor obtained from a South African kraft mill. Precipitation of lignin was achieved by utilising 6 M sulphuric acid. Recovery of ... Read more
Characteristics of lignin precipitated with organic acids as a source for valorisation carbon products

Author: Namane, M ; Garcia-Mateos, FJ ; Sithole, Bishop B ; Ramjugernath, D ; Rodríguez-Mirasol, J ; Cordero, T Date: Jun 2015 The biorefinery concept prescribes that the biomass should be utilized in its entirety to produce high value chemicals and materials, as well as energy. Lignin is the second most abundant biopolymer and a by-product of multiple lignocellulosic ... Read more
Dissolution of South African Eucalyptus sawdust wood in [Emim][OAc]/Co-solvent mixtures

Author: Tywabi, Zikhona ; Deenadayalu, Nirmala ; Sithole, Bishop B Date: Mar 2017 The paper presents a method of obtaining wood cellulose by dissolution of eucalyptus sawdust in a mixture of ionic liquid (IL) 1-ethyl-3-methylimidazolium acetate [Emim][OAc] together with co-solvents; dimethylformamide (DMF) and dimethylsulphoxide ... Read more
Genomic Resources

Author: Barros, E ; Morris, EJ Date: 2014 The fastest growing use of maize is for the production of fuel ethanol using the enzymatic conversion of corn starch to glucose and then to ethanol as well by converting the cellulosic (non-food) parts of maize to ethanol. However for the ... Read more
Precipitation and characterisation of lignin obtained from South African kraft mill black liquor

Author: Namane, M Date: Jul 2014 This presentation discusses what biorefinery means, where lignin is found, formed and how it is isolated, as well as the kraft pulping process, its materials and methods. Read more
Precipitation and valorisation of lignin in South African kraft mill black liquor - first stages: Poster

Author: Namane, M ; Sithole, Bishop B ; Ramjugernath, D Date: Oct 2013 Worldwide, the pulp and paper industry is in decline due to a number of factors such as high production costs, the growing utilization of electronic media that compete with print media and books, as well as pressure for the industry to be ... Read more
Precipitation and valorisation of lignin obtained from South African Kraft mill black liquor

Author: Namane, Mpho Date: Apr 2016 Lignin is a phenolic, carbon-rich, heterogeneous polymer that has, in recent years, become a focus of research in the biorefinery field, as a potential source of chemicals, energy and materials. Generally, research on lignin in the biorefinery ... Read more
Sequential extraction of carbohydrates and lignin from agricultural waste and their structural characterization

Author: Mtibe, Asanda ; John, Maya J ; Andrew, Jerome E ; Mokhena, TC Date: Jul 2022 This work reports on the extraction and characterization of carbohydrates such as cellulose, cellulose nanofibres, hemicellulose, and lignin from agricultural waste, i.e. maize stalks and sugarcane bagasse. The chemical compounds were extracted ... Read more
Structure and properties of lignin-based biopolymers in polymer production

Author: Motsoeneng, TS ; Mochane, MJ ; Mokhena, Teboho C ; Mathew, Maya J Date: 2020 Lignin can be extracted from a variety of plants such as soft and hard wood which account for the different functional groups and contents as well as number average molecular weights. Different chemical treatments have been employed to isolate ... Read more
Ultrafiltration and valorisation of lignin in black liquor from South African Kraft mills: A focus on dead-end stirred cell filtration

Author: Kekana, PT ; Sithole, Bishop B ; Ramjugemath, D ; Pillay, L Date: Jul 2014 The main aim of this project is to develop a method that can effectively extract lignin from Kraft black liquors from South African mills in the form that would be suitable for valorisation into high value products. In this study the effects ... Read more

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Browsing by Subject "Lignin"

Browsing by Subject "Lignin"

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All of ResearchSpace

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