A study on the extraction of lutein from selected locally grown vegetation

A study on the extraction of lutein from selected locally grown vegetation was carried out as the first step in developing the most suitable method of producing the lutein. Lutein is an antioxidant, important for preventing age related macular degeneration (ARMD) from occumng especially for person a...

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Main Author:	Lim, Serena Sue Lynn
Format:	Thesis
Language:	English
Published:	2003
Subjects:	TP Chemical technology QK Botany
Online Access:	http://eprints.utm.my/id/eprint/4390/1/SerenaLimSueLynnMFChE2003.pdf
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spelling	my-utm-ep.43902018-01-28T05:23:47Z A study on the extraction of lutein from selected locally grown vegetation 2003-11 Lim, Serena Sue Lynn TP Chemical technology QK Botany A study on the extraction of lutein from selected locally grown vegetation was carried out as the first step in developing the most suitable method of producing the lutein. Lutein is an antioxidant, important for preventing age related macular degeneration (ARMD) from occumng especially for person approaching the age of 60 years. The first part of the study was focused on screening some potential raw materials to determine the most suitable source of lutein which offers the highest yield and easily assessable. Two main extraction methods, namely the conventional method and the Soxhlet method, were investigated using the chosen raw material. In evaluating the extraction methods, some important factors affecting the extraction process were investigated. These include the standing or exposure time, solids to solvent ratio, and variation in diffei-ent types of solvents. The effect of these parameters on the concentration of the extracted lutein, and the rate of extraction were examined. In this study, it was found that in both the conventional and soxhlet method of extractions, acetone yielded the highest amount of lutein compared to other solvents used in the study. In general, the amount of lutein extracted was proportional to the standing time and the raw materials to solvent ratio. In all the operating conditions, maximum achievable lutein concentration was present, after which a plateau condition was observed. The maximum achievable lutein concentration was dependent on the operating conditions. As expected, the rate of mass transfer was higher in soxhlet extraction in comparison to the conventional method, with a magnitude of approximately 5 folds. Recognizing the emerging of ultrasound technology in enhancing many unit operations, a feasibility study was also conducted to gauge its capability in improving the extraction of lutein. It was found that the ultrasound extraction method offers a much improved technique with mass transfer rate equivalent to 4000 folds that of the conventional method, and 40 folds that of the soxhlet extraction method, and with much increased product yield. 2003-11 Thesis http://eprints.utm.my/id/eprint/4390/ http://eprints.utm.my/id/eprint/4390/1/SerenaLimSueLynnMFChE2003.pdf application/pdf en public masters Universiti Teknologi Malaysia, Faculty of Chemical and Natural Resources Engineering Faculty of Chemical and Natural Resources Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TP Chemical technology QK Botany
spellingShingle	TP Chemical technology QK Botany Lim, Serena Sue Lynn A study on the extraction of lutein from selected locally grown vegetation
description	A study on the extraction of lutein from selected locally grown vegetation was carried out as the first step in developing the most suitable method of producing the lutein. Lutein is an antioxidant, important for preventing age related macular degeneration (ARMD) from occumng especially for person approaching the age of 60 years. The first part of the study was focused on screening some potential raw materials to determine the most suitable source of lutein which offers the highest yield and easily assessable. Two main extraction methods, namely the conventional method and the Soxhlet method, were investigated using the chosen raw material. In evaluating the extraction methods, some important factors affecting the extraction process were investigated. These include the standing or exposure time, solids to solvent ratio, and variation in diffei-ent types of solvents. The effect of these parameters on the concentration of the extracted lutein, and the rate of extraction were examined. In this study, it was found that in both the conventional and soxhlet method of extractions, acetone yielded the highest amount of lutein compared to other solvents used in the study. In general, the amount of lutein extracted was proportional to the standing time and the raw materials to solvent ratio. In all the operating conditions, maximum achievable lutein concentration was present, after which a plateau condition was observed. The maximum achievable lutein concentration was dependent on the operating conditions. As expected, the rate of mass transfer was higher in soxhlet extraction in comparison to the conventional method, with a magnitude of approximately 5 folds. Recognizing the emerging of ultrasound technology in enhancing many unit operations, a feasibility study was also conducted to gauge its capability in improving the extraction of lutein. It was found that the ultrasound extraction method offers a much improved technique with mass transfer rate equivalent to 4000 folds that of the conventional method, and 40 folds that of the soxhlet extraction method, and with much increased product yield.
format	Thesis
qualification_level	Master's degree
author	Lim, Serena Sue Lynn
author_facet	Lim, Serena Sue Lynn
author_sort	Lim, Serena Sue Lynn
title	A study on the extraction of lutein from selected locally grown vegetation
title_short	A study on the extraction of lutein from selected locally grown vegetation
title_full	A study on the extraction of lutein from selected locally grown vegetation
title_fullStr	A study on the extraction of lutein from selected locally grown vegetation
title_full_unstemmed	A study on the extraction of lutein from selected locally grown vegetation
title_sort	study on the extraction of lutein from selected locally grown vegetation
granting_institution	Universiti Teknologi Malaysia, Faculty of Chemical and Natural Resources Engineering
granting_department	Faculty of Chemical and Natural Resources Engineering
publishDate	2003
url	http://eprints.utm.my/id/eprint/4390/1/SerenaLimSueLynnMFChE2003.pdf
_version_	1747814523849408512

A study on the extraction of lutein from selected locally grown vegetation

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