Adsorption of betacyanin on yarns

In textile industry, synthetic colourant is widely used as it is much cheaper and has high stability but the use of synthetic dye poses a great concern and threat to the environment when discharged. Thus, to overcome the problem, natural colourant is introduced as a substitute to synthetic colourant...

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Main Author:	Nurul Ain, Ibrahim
Format:	Undergraduates Project Papers
Language:	English English English
Published:	2015
Subjects:	TP Chemical technology
Online Access:	http://umpir.ump.edu.my/id/eprint/12640/ http://umpir.ump.edu.my/id/eprint/12640/ http://umpir.ump.edu.my/id/eprint/12640/1/FKKSA%20-%20NURUL%20AIN%20BINTI%20IBRAHIM%20-%20CD%209601.pdf http://umpir.ump.edu.my/id/eprint/12640/2/FKKSA%20-%20NURUL%20AIN%20BINTI%20IBRAHIM%20-%20CD%209601%20-%20CHAP%201.pdf http://umpir.ump.edu.my/id/eprint/12640/3/FKKSA%20-%20NURUL%20AIN%20BINTI%20IBRAHIM%20-%20CD%209601%20-%20CHAP%203.pdf

id	ump-12640
recordtype	eprints
spelling	ump-126402016-04-05T02:29:15Z http://umpir.ump.edu.my/id/eprint/12640/ Adsorption of betacyanin on yarns Nurul Ain, Ibrahim TP Chemical technology In textile industry, synthetic colourant is widely used as it is much cheaper and has high stability but the use of synthetic dye poses a great concern and threat to the environment when discharged. Thus, to overcome the problem, natural colourant is introduced as a substitute to synthetic colourant. Peel of Hylocereus polyrhizus or red-purple fleshed dragon fruits could be an attractive and potential source of red colourant for textile industry as the peel possess high content of betacyanin. Despite the potential, as a natural colourant, betacyanin cannot adheres well with certain types of fabric. This study provides determination of suitable yarns to be dyed with dragon fruit peel. Betacyanin was extracted from dragon fruit peel by simple water extraction at 100°C and adsorption process was carried out by soaking polyester cotton, rayon, and rayon coolmax yarns into stock solution for optimum time at 90 minutes. Langmuir and Freundlich isotherm models were applied in order to describe the equilibrium at different parameters and isotherm constants. Root mean square error and chi square analysis were used to test the models’ goodness of fit by non-linear regression due to the bias in using the correlation coefficient resulting from linearization. Freundlich model gave the best result for the adsorption isotherm. The applicability of Freundlich isotherm model showed the heterogeneous adsorption surface with sites have different energies of adsorption as the Freundlich model assumes. The result also have demonstrated the potency of dragon fruit peel as a source of natural colouring agents for dyeing of yarns by conventional techniques and perhaps more advanced techniques. 2015-07 Undergraduates Project Papers NonPeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/12640/1/FKKSA%20-%20NURUL%20AIN%20BINTI%20IBRAHIM%20-%20CD%209601.pdf application/pdf en http://umpir.ump.edu.my/id/eprint/12640/2/FKKSA%20-%20NURUL%20AIN%20BINTI%20IBRAHIM%20-%20CD%209601%20-%20CHAP%201.pdf application/pdf en http://umpir.ump.edu.my/id/eprint/12640/3/FKKSA%20-%20NURUL%20AIN%20BINTI%20IBRAHIM%20-%20CD%209601%20-%20CHAP%203.pdf Nurul Ain, Ibrahim (2015) Adsorption of betacyanin on yarns. Faculty of Chemical & Natural Resources Engineering, Universiti Malaysia Pahang. http://iportal.ump.edu.my/lib/item?id=chamo:93594&theme=UMP2
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English English English
topic	TP Chemical technology
spellingShingle	TP Chemical technology Nurul Ain, Ibrahim Adsorption of betacyanin on yarns
description	In textile industry, synthetic colourant is widely used as it is much cheaper and has high stability but the use of synthetic dye poses a great concern and threat to the environment when discharged. Thus, to overcome the problem, natural colourant is introduced as a substitute to synthetic colourant. Peel of Hylocereus polyrhizus or red-purple fleshed dragon fruits could be an attractive and potential source of red colourant for textile industry as the peel possess high content of betacyanin. Despite the potential, as a natural colourant, betacyanin cannot adheres well with certain types of fabric. This study provides determination of suitable yarns to be dyed with dragon fruit peel. Betacyanin was extracted from dragon fruit peel by simple water extraction at 100°C and adsorption process was carried out by soaking polyester cotton, rayon, and rayon coolmax yarns into stock solution for optimum time at 90 minutes. Langmuir and Freundlich isotherm models were applied in order to describe the equilibrium at different parameters and isotherm constants. Root mean square error and chi square analysis were used to test the models’ goodness of fit by non-linear regression due to the bias in using the correlation coefficient resulting from linearization. Freundlich model gave the best result for the adsorption isotherm. The applicability of Freundlich isotherm model showed the heterogeneous adsorption surface with sites have different energies of adsorption as the Freundlich model assumes. The result also have demonstrated the potency of dragon fruit peel as a source of natural colouring agents for dyeing of yarns by conventional techniques and perhaps more advanced techniques.
format	Undergraduates Project Papers
author	Nurul Ain, Ibrahim
author_facet	Nurul Ain, Ibrahim
author_sort	Nurul Ain, Ibrahim
title	Adsorption of betacyanin on yarns
title_short	Adsorption of betacyanin on yarns
title_full	Adsorption of betacyanin on yarns
title_fullStr	Adsorption of betacyanin on yarns
title_full_unstemmed	Adsorption of betacyanin on yarns
title_sort	adsorption of betacyanin on yarns
publishDate	2015
url	http://umpir.ump.edu.my/id/eprint/12640/ http://umpir.ump.edu.my/id/eprint/12640/ http://umpir.ump.edu.my/id/eprint/12640/1/FKKSA%20-%20NURUL%20AIN%20BINTI%20IBRAHIM%20-%20CD%209601.pdf http://umpir.ump.edu.my/id/eprint/12640/2/FKKSA%20-%20NURUL%20AIN%20BINTI%20IBRAHIM%20-%20CD%209601%20-%20CHAP%201.pdf http://umpir.ump.edu.my/id/eprint/12640/3/FKKSA%20-%20NURUL%20AIN%20BINTI%20IBRAHIM%20-%20CD%209601%20-%20CHAP%203.pdf
first_indexed	2023-09-18T22:14:28Z
last_indexed	2023-09-18T22:14:28Z
_version_	1777415244893650944

Adsorption of betacyanin on yarns

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