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...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Kowsarmedical
2018
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| Online Access: | http://umpir.ump.edu.my/id/eprint/23754/1/Effects_of_Microwave-Assisted_Extraction_Parameter.pdf |
| _version_ | 1825812499149094912 |
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| 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 |
| collection | UMP |
| 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. |
| first_indexed | 2024-03-06T12:30:04Z |
| format | Article |
| id | UMPir23754 |
| institution | Universiti Malaysia Pahang |
| language | English |
| last_indexed | 2024-03-06T12:30:04Z |
| publishDate | 2018 |
| publisher | Kowsarmedical |
| record_format | dspace |
| spelling | UMPir237542019-09-10T04:05:03Z 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 / Online First) (In Press / Online First) http://jjnpp.com/en/articles/57620.html |
| 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 |
| 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_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_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_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 |
| topic | TJ Mechanical engineering and machinery |
| url | http://umpir.ump.edu.my/id/eprint/23754/1/Effects_of_Microwave-Assisted_Extraction_Parameter.pdf |
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