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Browsing by Author "Tesfaye, T"

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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
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
Optimisation of surfactant decontamination and pre-treatment of waste chicken feathers by using response surface methodology

Author: Tesfaye, T ; Sithole, Bishop B ; Ramjugernath, D ; Ndlela, Luyanda L Date: Feb 2018 Commercially processed, untreated chicken feathers are biologically hazardous due to the presence of blood-borne pathogens. Prior to valorisation, it is crucial that they are decontaminated to remove the microbial contamination. The present ... Read more
Possible beneficiation of waste chicken feathers via conversion into biomedical applications

Author: Khumalo, M ; Tesfaye, T ; Sithole, Bishop B ; Ramjugernath, D Date: Jan 2019 Keratin-based waste materials such as wool and waste chicken feathers are driving investigations to beneficiate them. The poultry industry in South Africa generates about 230 million kg of waste chicken feathers per annum, which makes them ... Read more
Preparation, characterization and application of keratin based green biofilms from waste chicken feathers

Author: Tesfaye, T ; Sithole, Bishop B ; Ramjugernath, D Date: Aug 2018 Landfill disposal of synthetic plastics poses one of the biggest threats to the environment due to their non-biodegradability. This problem can be solved by production and use of biodegradable polymers instead. Feathers are a renewable, ... Read more
Review on the manufacturing and properties of nonwoven superabsorbent core fabrics used in disposable diapers

Author: Kakonke, G ; Tesfaye, T ; Sithole, Bishop B ; Ntunka, M Date: Feb 2019 Absorbent hygiene products are made up of different types of raw materials, renewables and non-renewables, to create the absorbent core which acts as a fluid storage structure in the product. With the addition of superabsorbent polymers in ... 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
Valorisation of chicken feather barbs: Utilisation in yarn production and technical textile applications

Author: Tesfaye, T ; Sithole, Bishop B ; Ramjugernath, D Date: Jun 2018 Deep Learning has become a common applied technique to improve results in a variety of detection scenarios, including Synthetic Aperture Radar ship detection. One of the most common Deep Learning techniques, Convolutional Neural Networks, ... Read more
Valorisation of chicken feathers: a review on recycling and recovery route—current status and future prospects

Author: Tesfaye, T ; Sithole, Bishop B ; Ramjugernath, D Date: Dec 2017 Worldwide, the poultry meat processing industry generates large quantities of feather by-products that amount to 40 × 109 kg annually. The feathers are considered wastes although small amounts are often processed into valuable products such ... Read more
Valorisation of chicken feathers: Characterisation of thermal, mechanical and electrical properties

Author: Tesfaye, T ; Sithole, Bishop B ; Ramjugernath, D ; Mokhothu, Thabang H Date: May 2018 Increasing consumption of chicken results in generation of large amounts of wastes that need to be disposed of properly. Chicken feathers constitute about 5–10% of the weight of the chicken and thus they comprise a significant portion of the ... Read more
Valorisation of chicken feathers: Characterisation of thermal, mechanical and electrical properties

Author: Tesfaye, T ; Sithole, Bishop B ; Ramjugernath, D ; Mokhothu, Thabang H Date: May 2018 Increasing consumption of chicken results in generation of large amounts of wastes that need to be disposed of properly. Chicken feathers constitute about 5–10% of the weight of the chicken and thus they comprise a significant portion of the ... Read more
Valorisation of chicken feathers: recycling and recovery routes

Author: Tesfaye, T ; Sithole, Bishop B ; Ramjugernath, D Date: Oct 2017 The poultry industry generates large amount of feathers as a waste by-product. Small amounts are often processed into valuable products such as feather meal and fertilisers and the remaining waste is disposed of by incineration or by burial ... Read more
Valorisation of mango seed via extraction of starch: preliminary techno-economic analysis

Author: Tesfaye, T ; Johakimu, Jonas K ; Chavan, RB ; Sithole, Bishop B ; Ramjugernath, D Date: Nov 2017 Reducing environmental impacts and obtaining economic benefits based on utilisation of waste materials are drivers for the implementation of cleaner production policies and technologies in food processing industries. Starch is a very versatile ... Read more
Valorisation of mango seeds via extractioof starch: Using response surface methodology to optimise the extraction process

Author: Tesfaye, T ; Sithole, Bishop B Date: 2018 Mango seed, a waste material that is disposed of after consumption of mangos, was studied for its potential use as a resource for extraction of starch. The study revealed that mango seeds are a good source of starch: physicochemical ... Read more
Valorisation of waste chicken feathers: Green oil sorbent

Author: Tesfaye, T ; Sithole, Bishop B ; Ramjugernath, D Date: Aug 2018 The threat of oil pollution increases with the development of large-scale off-shore petroleum industrial activities. Recently, reducing waste materials through reuse has contributed to sustainable manufacturing in many industries. With ... Read more
Valorisation of waste chicken feathers: Optimisation of decontamination and pre-treatment with bleaching agents using response surface methodology

Author: Tesfaye, T ; Sithole, Bishop B ; Ramjugernath, D Date: Jun 2018 Environmental concerns, rapid oil consumption, the high price of oil, and limited oil reserves are driving research into cheap, biodegradable, sustainable, renewable, and abundantly available green materials. Waste chicken feathers are abundant ... Read more

Now showing items 1-16 of 16

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