Microwave-assisted solvent extraction of castor oil from caastor seeds

Castor oil has various uses in the field of cosmetics, plastics, manufacturing of biodiesel, lubricants and medicine. This study investigated the extraction of castor oil using microwave-assisted extraction (MAE). The extraction was performed at 5, 10, 20, 30 min extraction times, 160 W, 230 W and 3...

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Main Author:	Ibrahim, Nur Atirah
Format:	Thesis
Language:	English
Published:	2017
Subjects:	TP Chemical technology
Online Access:	http://eprints.utm.my/id/eprint/78368/1/NurAtirahIbrahimMFChE2017.pdf
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spelling	my-utm-ep.783682018-08-26T04:53:35Z Microwave-assisted solvent extraction of castor oil from caastor seeds 2017-08 Ibrahim, Nur Atirah TP Chemical technology Castor oil has various uses in the field of cosmetics, plastics, manufacturing of biodiesel, lubricants and medicine. This study investigated the extraction of castor oil using microwave-assisted extraction (MAE). The extraction was performed at 5, 10, 20, 30 min extraction times, 160 W, 230 W and 330 W power intensities and 10, 20 and 40 solvent-to-feed (S/F) ratios (mL of solvent to gram of feed). The oils were characterized for yield, physico-chemical properties, dielectric properties and oxidation stability, and comparison was also made with oil extracted using Soxhlet method. Results show that the mixed solvent (5 % ethanol in hexane) was effective to extract castor oil with 36 % yield by MAE. The maximum oil yield of 37 % was obtained by MAE at 20 minutes with power intensity of 330 W and S/F ratio of 20. The density, refractive index and dielectric properties of oils were not affected by extraction methods and extraction parameters of MAE. However, the viscosity of oil increased, while the pH decreased when the power intensity and extraction time increased due to oil oxidation. The main fatty acid composition of castor oils is ricinoleic acid. The oil extracted by MAE experienced a higher oxidation compared to that by Soxhlet method. With extra caution on oxidation of castor oil, MAE can be an attractive and promising method of 86% less in processing time and higher yield compared to Soxhlet extraction. 2017-08 Thesis http://eprints.utm.my/id/eprint/78368/ http://eprints.utm.my/id/eprint/78368/1/NurAtirahIbrahimMFChE2017.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:105140 masters Universiti Teknologi Malaysia, Faculty of Chemical Engineering Faculty of Chemical Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TP Chemical technology
spellingShingle	TP Chemical technology Ibrahim, Nur Atirah Microwave-assisted solvent extraction of castor oil from caastor seeds
description	Castor oil has various uses in the field of cosmetics, plastics, manufacturing of biodiesel, lubricants and medicine. This study investigated the extraction of castor oil using microwave-assisted extraction (MAE). The extraction was performed at 5, 10, 20, 30 min extraction times, 160 W, 230 W and 330 W power intensities and 10, 20 and 40 solvent-to-feed (S/F) ratios (mL of solvent to gram of feed). The oils were characterized for yield, physico-chemical properties, dielectric properties and oxidation stability, and comparison was also made with oil extracted using Soxhlet method. Results show that the mixed solvent (5 % ethanol in hexane) was effective to extract castor oil with 36 % yield by MAE. The maximum oil yield of 37 % was obtained by MAE at 20 minutes with power intensity of 330 W and S/F ratio of 20. The density, refractive index and dielectric properties of oils were not affected by extraction methods and extraction parameters of MAE. However, the viscosity of oil increased, while the pH decreased when the power intensity and extraction time increased due to oil oxidation. The main fatty acid composition of castor oils is ricinoleic acid. The oil extracted by MAE experienced a higher oxidation compared to that by Soxhlet method. With extra caution on oxidation of castor oil, MAE can be an attractive and promising method of 86% less in processing time and higher yield compared to Soxhlet extraction.
format	Thesis
qualification_level	Master's degree
author	Ibrahim, Nur Atirah
author_facet	Ibrahim, Nur Atirah
author_sort	Ibrahim, Nur Atirah
title	Microwave-assisted solvent extraction of castor oil from caastor seeds
title_short	Microwave-assisted solvent extraction of castor oil from caastor seeds
title_full	Microwave-assisted solvent extraction of castor oil from caastor seeds
title_fullStr	Microwave-assisted solvent extraction of castor oil from caastor seeds
title_full_unstemmed	Microwave-assisted solvent extraction of castor oil from caastor seeds
title_sort	microwave-assisted solvent extraction of castor oil from caastor seeds
granting_institution	Universiti Teknologi Malaysia, Faculty of Chemical Engineering
granting_department	Faculty of Chemical Engineering
publishDate	2017
url	http://eprints.utm.my/id/eprint/78368/1/NurAtirahIbrahimMFChE2017.pdf
_version_	1747817972171276288

Microwave-assisted solvent extraction of castor oil from caastor seeds

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