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Browsing Journal Articles by Impact Area "Biorefinery Industry Developme"

Now showing items 1-15 of 15

Beneficiation of eucalyptus tree barks in the context of an integrated biorefinery – Optimisation of accelerated solvent extraction (ASE) of polyphenolic compounds using response surface methodology

Author: Andrew, Jerome E ; Masetlwa, J ; Tesfaye, T ; Sithole, Bishop B Date: Dec 2020 Bark from trees obtained from sustainably managed plantations used in the production of timber, pulp and paper is an under-utilised waste in many countries across the world. However, in the context of an integrated biorefinery, they may serve ... Read more
Beneficiation of wood sawdust into cellulose nanocrystals for application as a bio-binder in the manufacture of particleboard

Author: Fagbemi, Olajumoke D ; Andrew, Jerome E ; Sithole, Bishop B Date: Oct 2021 This study reports on the beneficiation of wood sawdust into cellulose nanocrystals (CNC) for application as a binder in the manufacture of particleboard. The cellulose nanocrystal from wood sawdust was extracted using acid hydrolysis and an ... Read more
Design and development of cellulosic bionanocomposites from forestry waste residues for 3D printing applications

Author: Mathew, Maya J ; Dyanti, Nokuzola ; Mokhena, Teboho C ; Agbakoba, Victor ; Sithole, Bishop B Date: Jun 2021 This paper deals with the development of cellulose nanofibres (CNFs) reinforced biopolymers for use in packaging applications. Cellulose nanofibres were extracted from sawdust by a combination of chemical and mechanical treatments. The extracted ... Read more
The effects of chemical and structural factors on the enzymatic saccharification of Eucalyptus sp. samples pre-treated by various technologies

Author: Thoresen, M ; Malgas, S ; Gandla, ML ; Jonsson, LJ ; Sithole, Bishop B ; Pletschke, BI Date: Aug 2021 Lignocellulosic biomass is an important renewable resource to produce biofuels, due to its abundance and high polysaccharide content. Bioconversion is generally achieved in two stages: (i) pre-treatment, to reduce biomass recalcitrance, and ... Read more
Functionalized sawdust-derived cellulose nanocrystalline adsorbent for efficient removal of vanadium from aqueous solution

Author: Zulu, B ; Oyewo, OA ; Leswifi, TY ; Onyango, MS ; Bishop, BB Date: Jul 2020 Water quality degradation due to noxious heavy metals has become a serious concern because of its impact on human health and the ecosystem. In this study, cellulose nanocrystal (CNC) derived from sawdust as a green renewable and sustainable ... Read more
Incorporation of cellulose nanocrystals (CNC) derived from sawdust into polyamide thin-film composite membranes for enhanced water recovery

Author: Adeniyi, A ; Gonzalez-Ortiz, d ; Pochat-Bohatier, B ; Oyewo, O ; Sithole, Bishop B ; Onyango, M Date: Dec 2020 In this work, cellulose nanocrystals (CNC) derived from sawdust were successfully incorporated into a thin film composite membrane made from polyamide. The characteristics of unmodified and modified membranes were investigated using FT-IR, ... Read more
The investigation of reinforcement properties of nano- CaCO3 synthesized from Achatina fulica snail shell through mechanochemical methods on epoxy nanocomposites

Author: Gbadeyan, OJ ; Adali, BJ ; Bright, G ; Sithole, Bishop B Date: Jun 2021 The current study investigates the reinforcement properties of novel nano-calcium carbonate (nano-CaCO(sub3)) synthesized from Achatina fulica snail shell. The shell was wet-milled to nanoparticle sizes using mechanochemical procedures. Epoxy ... Read more
Mechanical, microstructure, and dynamic mechanical analysis of nano-shell and plant fiber hybrid biocomposite

Author: Gbadeyan, OJ ; Adali, S ; Bright, G ; Sithole, Bishop B ; Lekha, Prabashni S Date: May 2021 This study deal with the development and investigation of a novel hybrid nano-shell plant fiber biocomposite. Nano-calcium carbonate CaCO3 ranging from 1 to 5 wt% and 20 wt% banana fiber-filled hybrid biocomposite were prepared using a hand ... Read more
Natural dyeing of cotton fabric with extracts from mango tree: A step towards sustainable dyeing

Author: Ayele, M ; Tesfaye, T ; Alemu, D ; Limeneh, M ; Sithole, Bishop B Date: Sep 2020 Recently, there has been a great deal of interest to circumvent the environmental problems associated with manufactured colouring agents by using natural dyes. This study focuses on extracting natural dyes from mango leave and mango peel and ... Read more
Optimization of milling procedures for synthesizing nano-CaCO3 from Achatina fulica shell through mechanochemical techniques

Author: Gbadeyan, OJ ; Adali, S ; Bright, G ; Sithole, Bishop B ; Onwubu, S Date: Jul 2020 The possibility of obtaining calcium carbonate nanoparticles from Achatina fulica shell through mechanochemical synthesis to be used as a modifying filler for polymer materials has been studied. The process of obtaining calcium carbonate ... Read more
Pretreatment and enzymatic saccharification of sludge from a prehydrolysis kraft and kraft pulping mill

Author: Singh, S ; Sithole, Bishop B ; Lekha, Prabashni ; Permaul, K ; Govinden, R Date: Jan 2021 The South African pulp and paper industry generates an estimated 0.5 million tons of pulp and paper mill sludge (PPMS) annually. As PPMS is generated, it requires safe, efficient, and economical collection and disposal. However, PPMS is ... Read more
Pyrolysis oil composition and catalytic activity estimated by cumulative mass analysis using Py-GC/MS EGA-MS

Author: Merckel, RD ; Heydenrych, MD ; Sithole, Bishop B Date: Mar 2021 An advancement in the analytical capabilities of pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS) with evolved gas analysis-mass spectrometry (EGA-MS) is presented. The combined method of analysis can predict elemental composition ... Read more
A techno-economic feasibility of a process for extraction of starch from waste avocado seeds

Author: Tesfaye, T ; Ayele, A ; Ferede, E ; Gibril, M ; Kong, F ; Sithole, Bishop B Date: Nov 2020 Generation of waste from the agro-processing industry is continually increasing due to increasing needs for food security. Beneficiation of this waste has both economic and environmental impacts that can be overcome via implementation of ... Read more
Understanding the mechanism of interaction of candidate soil stabilizing prototypes by using microscopy and spectroscopy techniques

Author: Ramdas, Veshara M ; Lalloo, Rajesh ; Lekha, Prabashni S ; Mgangira, Martin B ; Muniyasamy, Sudhakar ; Mukaratirwa, S ; Ramchuran, Santosh O Date: May 2021 Globally, there is a high demand for bio-based soil stabilizers required for improving the strength properties of weak in situ soil. Microbes and microbial components such as Bacillus spp. have gained interest as soil stabilizers due to their ... Read more
Using cellulose nanocrystals to improve the mechanical properties of fly ash-based geopolymer construction materials

Author: Roopchund, R ; Andrew, Jerome E ; Sithole, Bishop B Date: Jan 2022 Ordinary Portland cement production is one of the biggest emitters of carbon dioxide. Consequently, there is a strong need for construction materials with lower environmental footprints. However, the development of alternative green construction ... Read more

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