Conversion of finished leather waste incorporated with plant fibers into value added consumer products – An effort to minimize solid waste in Ethiopia

Teklay, A.; Gebeyehu, Getaneh; Tilahun, Getachew; Yaynshet, T.; Sastry, T. P.

doi:10.1016/j.wasman.2017.07.024

Cited by 34 publications

(19 citation statements)

References 4 publications

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“…Improvement of the properties of leather can be made by grafting it with different monomers using the emulsion polymerization technique [12,13]. Latex polymers can also be used as nishing agent to modify different leather properties such as lustering [14], water resistance [15] and quality [16,17].…”

Section: Introductionmentioning

confidence: 99%

WITHDRAWN: Modification of Natural Leather Properties via Grafting Polymerization of Glycidyl Methacrylate Monomer

Hussein¹,

Alatawi²,

Albalawi³

et al. 2021

Preprint

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Chrome tanned leather was grafted by poly (glycidyl methacrylate) (L-g-PGMA) via emulsion polymerization technique and the grafting yield 26%. Epoxy content of the grafted leather samples was 69.4 mmol/100gm. The obtained L-g-PGMA samples were impregnated in different dibutyl amine solutions using amine/ epoxy molar ratio ranging from 0.5 up to 2.5. The obtained samples were assessed through varying nitrogen analysis, infrared spectroscopy, thermogravemetric analysis (TGA) analysis and scanning electron microscope. It was found that the nitrogen content of the treated leather samples increases by increasing the dibutyl amine concentration up to amine/ epoxy molar ratio of 2 after which it decreases. The water absorption, tensile strength and elongation (%) as well as hardness of the modified leather samples were studied and compared with the unmodified one. The colour strength values of dyed leather samples with acid dye were found to increase by grafting or by increasing the amine/epoxy molar ratio up to a value of 1.0 after which it decreases. On the contrary, the colour strength value of dyed leather sample with reactive dye sharply decreases after grafting with poly (glycidyl methacrylate). Samples grafted with glycidyl methacrylate and treated with dibutylacrylate amine exhibit increased colour strength which is directly related to the nitrogen content of the sample.

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Section: Introductionmentioning

confidence: 99%

WITHDRAWN: Modification of Natural Leather Properties via Grafting Polymerization of Glycidyl Methacrylate Monomer

Hussein¹,

Alatawi²,

Albalawi³

et al. 2021

Preprint

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“…There is no sorting of the solid wastes based on their properties and mixed solid wastes are disposed in open dumping sites Mulat (2016). Teklay et al (2017) also confirmed that presently, the leftovers from leather product industries are discarded as waste in Ethiopia. Though the resource (solid waste leather) is huge and its effect to the environment is critical, no significant work is done in Ethiopia to convert it into wealth.…”

Section: Introductionsupporting

confidence: 61%

Preparation of value added composite sheet from solid waste leather - A prototype design

Teklay¹,

Gebeyehu²,

Tilahun³

et al. 2018

Sci. Res. Essays

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Leather sector in Ethiopia is blessed with huge livestock resource which serves as source of raw material (hides and skin), cheap and highly disciplined workforce, cheap cost of doing business, significant international comparative advantages, investment incentives, and custom duty exemption. This industry remains a supplier of low value added, semi-processed hides and skin to the international market. leather sheet of wonderful strength (9.84±0.16 MPa) and very reasonable elongation at break (31.40%) having amenable use was prepared and the production of this value added products from waste material is a reasonable task of the time that scholars should do as it can serve as means of income besides its advantage to reduce environmental pollution specially in countries like Ethiopia which, have untapped solid waste leather resource.

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“…Fiber is a byproduct of decortications of the leave sheaths for production of kocho . Researchers have reported that fiber has an excellent structure, and its strength is equivalent to the fiber of abaca (Mizera et al , 2017; Teklay et al , 2017; Teli and Terega, 2017). Also, 600 tons of enset fibers are used by different factories (Maryo et al , 2015).…”

Section: Other Uses Of Ensetmentioning

confidence: 99%

A review on nutritional profile of the food from enset

Fanta

Satheesh

2019

NFS

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Purpose This paper is a systemic review on enset plant’s role in Ethiopian people’s life as the source of food. This paper aims to summarize the traditional processing and preparation methods of enset-based foods and their nutritional composition. Design/methodology/approach Available scientific articles were collected and reviewed for enset plant evaluation, description, enset plant’s role in Ethiopian people’s food security, post harvesting and traditional processing of enset plants, microbiology of the fermented enset foods, different foods reported from enset, nutritional profile of the three food from enset base (kocho, bulla and amicho) and other non-food applications of enset plant. Findings Enset plant has a predominant role in people living in the southern part of Ethiopia. This plant is drought-tolerant and provides many non-food applications. Harvesting of the enset plant, preparing for fermentation and food preparations follow the traditional route by using the indigenous knowledge and practices. Limited studies have been reported on the microbiology of the enset fermentation, but various types of microbes have been reported. In case of nutritional composition, foods from enset are reported to contain high carbohydrate and minerals content, such as calcium, potassium and zinc, but limited protein content; they are also the best source of the essential amino acids such as lysine and leucine. Limited data are available on vitamins, anti-oxidant and fatty acids profiles of enset-based foods. The existing data indicate variations, and the reasons for variability are discussed in this paper. Originality/value Scientific reviews on enset food nutrition profile and related issues are scarce; this paper will compile information about enset plant-based foods for researchers for their future research.

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Conversion of finished leather waste incorporated with plant fibers into value added consumer products – An effort to minimize solid waste in Ethiopia

Cited by 34 publications

References 4 publications

WITHDRAWN: Modification of Natural Leather Properties via Grafting Polymerization of Glycidyl Methacrylate Monomer

WITHDRAWN: Modification of Natural Leather Properties via Grafting Polymerization of Glycidyl Methacrylate Monomer

Preparation of value added composite sheet from solid waste leather - A prototype design

A review on nutritional profile of the food from enset

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