Effects of Microwave-Assisted Extraction Parameters on the Recovery Yield and Total Phenolic Content of Vernonia amygdalina Leaf Extracts with Different Methods of Drying

Vernonia amygdalina leaf has a significant importance in food and traditional medicine. It has been reported to possess various pharmacological effects. This study was carried out to investigate the influence of microwave-assisted extraction factors on the extraction from V. amygdalina leaves. The r...

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Main Authors:	Alara, Oluwaseun Ruth, Nour, A. H., Siti Kholijah, Abdul Mudalip, Olalere, Olusegun Abayomi
Format:	Article
Language:	English
Published:	Kowsarmedical 2018
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://umpir.ump.edu.my/id/eprint/23754/ http://umpir.ump.edu.my/id/eprint/23754/ http://umpir.ump.edu.my/id/eprint/23754/1/Effects_of_Microwave-Assisted_Extraction_Parameter.pdf

id	ump-23754
recordtype	eprints
spelling	ump-237542019-09-10T04:05:03Z http://umpir.ump.edu.my/id/eprint/23754/ Effects of Microwave-Assisted Extraction Parameters on the Recovery Yield and Total Phenolic Content of Vernonia amygdalina Leaf Extracts with Different Methods of Drying Alara, Oluwaseun Ruth Nour, A. H. Siti Kholijah, Abdul Mudalip Olalere, Olusegun Abayomi TJ Mechanical engineering and machinery Vernonia amygdalina leaf has a significant importance in food and traditional medicine. It has been reported to possess various pharmacological effects. This study was carried out to investigate the influence of microwave-assisted extraction factors on the extraction from V. amygdalina leaves. The results highlighted that an increase in temperature deteriorated the yields of V. amygdalina leaf. Thus, shade-dried samples gave the highest yields at the irradiation times of 10 and 2 min, microwave power of 500 and 600W, the temperature of 100 and 80°C, the feed-to-solvent ratio of 1:10, and ethanol concentration of 60% v/v using water and ethanol as the extracting solvents, respectively. Likewise, the antioxidant assay resulted in IC50 values of 260_1.1 _g/mL DPPH and 149.78_0.81_g/mL ABTS for water and 204_0.92_g/mL DPPH and 31.17_1.4_g/mL ABTS for ethanol. Therefore, the synergistic mechanism of mass and heat transfer may be accounted for the accelerated extraction due to microwave. Kowsarmedical 2018 Article NonPeerReviewed pdf en cc_by_nc_4 http://umpir.ump.edu.my/id/eprint/23754/1/Effects_of_Microwave-Assisted_Extraction_Parameter.pdf Alara, Oluwaseun Ruth and Nour, A. H. and Siti Kholijah, Abdul Mudalip and Olalere, Olusegun Abayomi (2018) Effects of Microwave-Assisted Extraction Parameters on the Recovery Yield and Total Phenolic Content of Vernonia amygdalina Leaf Extracts with Different Methods of Drying. Jundishapur Journal of Natural Pharmaceutical Products. pp. 1-11. ISSN 1735-7780 (In Press) http://jjnpp.com/en/articles/57620.html
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery Alara, Oluwaseun Ruth Nour, A. H. Siti Kholijah, Abdul Mudalip Olalere, Olusegun Abayomi Effects of Microwave-Assisted Extraction Parameters on the Recovery Yield and Total Phenolic Content of Vernonia amygdalina Leaf Extracts with Different Methods of Drying
description	Vernonia amygdalina leaf has a significant importance in food and traditional medicine. It has been reported to possess various pharmacological effects. This study was carried out to investigate the influence of microwave-assisted extraction factors on the extraction from V. amygdalina leaves. The results highlighted that an increase in temperature deteriorated the yields of V. amygdalina leaf. Thus, shade-dried samples gave the highest yields at the irradiation times of 10 and 2 min, microwave power of 500 and 600W, the temperature of 100 and 80°C, the feed-to-solvent ratio of 1:10, and ethanol concentration of 60% v/v using water and ethanol as the extracting solvents, respectively. Likewise, the antioxidant assay resulted in IC50 values of 260_1.1 _g/mL DPPH and 149.78_0.81_g/mL ABTS for water and 204_0.92_g/mL DPPH and 31.17_1.4_g/mL ABTS for ethanol. Therefore, the synergistic mechanism of mass and heat transfer may be accounted for the accelerated extraction due to microwave.
format	Article
author	Alara, Oluwaseun Ruth Nour, A. H. Siti Kholijah, Abdul Mudalip Olalere, Olusegun Abayomi
author_facet	Alara, Oluwaseun Ruth Nour, A. H. Siti Kholijah, Abdul Mudalip Olalere, Olusegun Abayomi
author_sort	Alara, Oluwaseun Ruth
title	Effects of Microwave-Assisted Extraction Parameters on the Recovery Yield and Total Phenolic Content of Vernonia amygdalina Leaf Extracts with Different Methods of Drying
title_short	Effects of Microwave-Assisted Extraction Parameters on the Recovery Yield and Total Phenolic Content of Vernonia amygdalina Leaf Extracts with Different Methods of Drying
title_full	Effects of Microwave-Assisted Extraction Parameters on the Recovery Yield and Total Phenolic Content of Vernonia amygdalina Leaf Extracts with Different Methods of Drying
title_fullStr	Effects of Microwave-Assisted Extraction Parameters on the Recovery Yield and Total Phenolic Content of Vernonia amygdalina Leaf Extracts with Different Methods of Drying
title_full_unstemmed	Effects of Microwave-Assisted Extraction Parameters on the Recovery Yield and Total Phenolic Content of Vernonia amygdalina Leaf Extracts with Different Methods of Drying
title_sort	effects of microwave-assisted extraction parameters on the recovery yield and total phenolic content of vernonia amygdalina leaf extracts with different methods of drying
publisher	Kowsarmedical
publishDate	2018
url	http://umpir.ump.edu.my/id/eprint/23754/ http://umpir.ump.edu.my/id/eprint/23754/ http://umpir.ump.edu.my/id/eprint/23754/1/Effects_of_Microwave-Assisted_Extraction_Parameter.pdf
first_indexed	2023-09-18T22:35:43Z
last_indexed	2023-09-18T22:35:43Z
_version_	1777416581294325760

Effects of Microwave-Assisted Extraction Parameters on the Recovery Yield and Total Phenolic Content of Vernonia amygdalina Leaf Extracts with Different Methods of Drying

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