Characteristics and tanning potential of Hagenia abyssinica tannin extracts and its possible use in clean leather production

Hagenia abyssinica, a tannin material, was employed for tanning the sheepskins into crust leathers and then compared its performance with the leather that was tanned with commercial mimosa. Characterizations of H. abyssinica extract revealed that it possesses condensed tannin having a pH: 4.7. Tanni...

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Autores principales:	Franco John Unango, Ramesh Duraisamy, Karthikeyan M. Ramasamy, Tewodros Birhanu
Formato:	article
Lenguaje:	EN
Publicado:	Taylor & Francis Group 2021
Materias:	chrome-free tannins hagenia abyssinica mimosa phyto-tanning sheepskin Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/8f2546de759d4d0abc4237a5ba117ac0
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spelling	oai:doaj.org-article:8f2546de759d4d0abc4237a5ba117ac02021-11-26T11:19:50ZCharacteristics and tanning potential of Hagenia abyssinica tannin extracts and its possible use in clean leather production2331-191610.1080/23311916.2021.1993520https://doaj.org/article/8f2546de759d4d0abc4237a5ba117ac02021-01-01T00:00:00Zhttp://dx.doi.org/10.1080/23311916.2021.1993520https://doaj.org/toc/2331-1916Hagenia abyssinica, a tannin material, was employed for tanning the sheepskins into crust leathers and then compared its performance with the leather that was tanned with commercial mimosa. Characterizations of H. abyssinica extract revealed that it possesses condensed tannin having a pH: 4.7. Tannin, non-tannin, and tannin strength were found to be 15.49%, 7.52%, and 2.06% respectively. Fourier transforms Infrared and UV–Visible spectroscopic studies were also carried out to find the structural characteristics of the H. Abyssinica tannins. The results of the physicomechanical characterization of crust leathers showed that the tensile strength of the sample was ranged from 10.2 to 11.9 N/mm2, but the control mimosa tanned leather was found to be 19.8–19.9 N/mm2. Elongation at break was 45.7–45.8% against control (36.7–37.5%). Tear strength was found as 26.9–27.3 N/mm2 (expt.) and 26.9–27.8 N/mm2 (control). The chemical properties of prepared scab leathers were tested and the obtained data met the desires. In addition, H. Abyssinica tanned leather exhibited the highest shrinkage temperature of about 78.5°C. Analyses of organoleptic properties showed that the H. Abyssinica crust leathers were much better than mimosa-based crust leather. The effluence masses of tanning liquors existed also assessed and the findings mostly demonstrated that there was a statistically significant difference (with p-values: 0.000) except total suspended solid (p-value: 0.059) and BOD (p-value: 0.099) between the control and experiment liquors within the allowable limit. Thus, this study exhibited that H. Abyssinica tanning liquor does not influence the pollution load into the aquatic environment and soil.Franco John UnangoRamesh DuraisamyKarthikeyan M. RamasamyTewodros BirhanuTaylor & Francis Grouparticlechrome-free tanninshagenia abyssinicamimosaphyto-tanningsheepskinEngineering (General). Civil engineering (General)TA1-2040ENCogent Engineering, Vol 8, Iss 1 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	chrome-free tannins hagenia abyssinica mimosa phyto-tanning sheepskin Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	chrome-free tannins hagenia abyssinica mimosa phyto-tanning sheepskin Engineering (General). Civil engineering (General) TA1-2040 Franco John Unango Ramesh Duraisamy Karthikeyan M. Ramasamy Tewodros Birhanu Characteristics and tanning potential of Hagenia abyssinica tannin extracts and its possible use in clean leather production
description	Hagenia abyssinica, a tannin material, was employed for tanning the sheepskins into crust leathers and then compared its performance with the leather that was tanned with commercial mimosa. Characterizations of H. abyssinica extract revealed that it possesses condensed tannin having a pH: 4.7. Tannin, non-tannin, and tannin strength were found to be 15.49%, 7.52%, and 2.06% respectively. Fourier transforms Infrared and UV–Visible spectroscopic studies were also carried out to find the structural characteristics of the H. Abyssinica tannins. The results of the physicomechanical characterization of crust leathers showed that the tensile strength of the sample was ranged from 10.2 to 11.9 N/mm2, but the control mimosa tanned leather was found to be 19.8–19.9 N/mm2. Elongation at break was 45.7–45.8% against control (36.7–37.5%). Tear strength was found as 26.9–27.3 N/mm2 (expt.) and 26.9–27.8 N/mm2 (control). The chemical properties of prepared scab leathers were tested and the obtained data met the desires. In addition, H. Abyssinica tanned leather exhibited the highest shrinkage temperature of about 78.5°C. Analyses of organoleptic properties showed that the H. Abyssinica crust leathers were much better than mimosa-based crust leather. The effluence masses of tanning liquors existed also assessed and the findings mostly demonstrated that there was a statistically significant difference (with p-values: 0.000) except total suspended solid (p-value: 0.059) and BOD (p-value: 0.099) between the control and experiment liquors within the allowable limit. Thus, this study exhibited that H. Abyssinica tanning liquor does not influence the pollution load into the aquatic environment and soil.
format	article
author	Franco John Unango Ramesh Duraisamy Karthikeyan M. Ramasamy Tewodros Birhanu
author_facet	Franco John Unango Ramesh Duraisamy Karthikeyan M. Ramasamy Tewodros Birhanu
author_sort	Franco John Unango
title	Characteristics and tanning potential of Hagenia abyssinica tannin extracts and its possible use in clean leather production
title_short	Characteristics and tanning potential of Hagenia abyssinica tannin extracts and its possible use in clean leather production
title_full	Characteristics and tanning potential of Hagenia abyssinica tannin extracts and its possible use in clean leather production
title_fullStr	Characteristics and tanning potential of Hagenia abyssinica tannin extracts and its possible use in clean leather production
title_full_unstemmed	Characteristics and tanning potential of Hagenia abyssinica tannin extracts and its possible use in clean leather production
title_sort	characteristics and tanning potential of hagenia abyssinica tannin extracts and its possible use in clean leather production
publisher	Taylor & Francis Group
publishDate	2021
url	https://doaj.org/article/8f2546de759d4d0abc4237a5ba117ac0
work_keys_str_mv	AT francojohnunango characteristicsandtanningpotentialofhageniaabyssinicatanninextractsanditspossibleuseincleanleatherproduction AT rameshduraisamy characteristicsandtanningpotentialofhageniaabyssinicatanninextractsanditspossibleuseincleanleatherproduction AT karthikeyanmramasamy characteristicsandtanningpotentialofhageniaabyssinicatanninextractsanditspossibleuseincleanleatherproduction AT tewodrosbirhanu characteristicsandtanningpotentialofhageniaabyssinicatanninextractsanditspossibleuseincleanleatherproduction
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Characteristics and tanning potential of Hagenia abyssinica tannin extracts and its possible use in clean leather production

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