Reduced-Pressure Boiling Extraction of Oleuropein Coupled with Ultrasonication from Olive Leaves (Olea europaea L.)
Oleuropein was extracted from Frantoio olive leaves using reduced-pressure boiling extraction coupled with ultrasound-assist (URPE). Four important factors, extraction temperature, ultrasonic power, ethanol concentration, and the ratio of solid to liquid, were selected to carry out the response surf...
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2015/719485 |
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| author | Pu-jun Xie Li-xin Huang Cai-hong Zhang Feng You Cheng-zhang Wang Hao Zhou |
| author_facet | Pu-jun Xie Li-xin Huang Cai-hong Zhang Feng You Cheng-zhang Wang Hao Zhou |
| author_sort | Pu-jun Xie |
| collection | DOAJ |
| description | Oleuropein was extracted from Frantoio olive leaves using reduced-pressure boiling extraction coupled with ultrasound-assist (URPE). Four important factors, extraction temperature, ultrasonic power, ethanol concentration, and the ratio of solid to liquid, were selected to carry out the response surface methodology (RSM) for seeking optimal conditions on high oleuropein extraction yield at different levels. Box-Behnken design was employed to investigate the effects of the four factors on it. The results showed that the ratio of solid to liquid was the most significant factor of all on oleuropein yield. The optimal operation conditions were obtained as follows: ethanol concentration 75% (v/v), extraction temperature 53°C, ultrasonic power 600 W, and the ratio of solid to liquid 1 : 31. Under these optimal conditions, oleuropein extraction yield was 7.08%, which was close to the predicted value 7.121%. The scanning electron microscope (SEM) images of olive leaves after extraction were provided as well. It was seen that, compared with the untreated leaves, URPE could effectively break cells within the olive leaves. |
| format | Article |
| id | doaj-art-e13b9e0be4384c489ea1a26d0ad838ea |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-e13b9e0be4384c489ea1a26d0ad838ea2025-08-20T03:25:59ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422015-01-01201510.1155/2015/719485719485Reduced-Pressure Boiling Extraction of Oleuropein Coupled with Ultrasonication from Olive Leaves (Olea europaea L.)Pu-jun Xie0Li-xin Huang1Cai-hong Zhang2Feng You3Cheng-zhang Wang4Hao Zhou5Institute of Chemical Industry of Forest Products, CAF, Nanjing, Jiangsu 210042, ChinaInstitute of Chemical Industry of Forest Products, CAF, Nanjing, Jiangsu 210042, ChinaInstitute of Chemical Industry of Forest Products, CAF, Nanjing, Jiangsu 210042, ChinaInstitute of Chemical Industry of Forest Products, CAF, Nanjing, Jiangsu 210042, ChinaInstitute of Chemical Industry of Forest Products, CAF, Nanjing, Jiangsu 210042, ChinaInstitute of Chemical Industry of Forest Products, CAF, Nanjing, Jiangsu 210042, ChinaOleuropein was extracted from Frantoio olive leaves using reduced-pressure boiling extraction coupled with ultrasound-assist (URPE). Four important factors, extraction temperature, ultrasonic power, ethanol concentration, and the ratio of solid to liquid, were selected to carry out the response surface methodology (RSM) for seeking optimal conditions on high oleuropein extraction yield at different levels. Box-Behnken design was employed to investigate the effects of the four factors on it. The results showed that the ratio of solid to liquid was the most significant factor of all on oleuropein yield. The optimal operation conditions were obtained as follows: ethanol concentration 75% (v/v), extraction temperature 53°C, ultrasonic power 600 W, and the ratio of solid to liquid 1 : 31. Under these optimal conditions, oleuropein extraction yield was 7.08%, which was close to the predicted value 7.121%. The scanning electron microscope (SEM) images of olive leaves after extraction were provided as well. It was seen that, compared with the untreated leaves, URPE could effectively break cells within the olive leaves.http://dx.doi.org/10.1155/2015/719485 |
| spellingShingle | Pu-jun Xie Li-xin Huang Cai-hong Zhang Feng You Cheng-zhang Wang Hao Zhou Reduced-Pressure Boiling Extraction of Oleuropein Coupled with Ultrasonication from Olive Leaves (Olea europaea L.) Advances in Materials Science and Engineering |
| title | Reduced-Pressure Boiling Extraction of Oleuropein Coupled with Ultrasonication from Olive Leaves (Olea europaea L.) |
| title_full | Reduced-Pressure Boiling Extraction of Oleuropein Coupled with Ultrasonication from Olive Leaves (Olea europaea L.) |
| title_fullStr | Reduced-Pressure Boiling Extraction of Oleuropein Coupled with Ultrasonication from Olive Leaves (Olea europaea L.) |
| title_full_unstemmed | Reduced-Pressure Boiling Extraction of Oleuropein Coupled with Ultrasonication from Olive Leaves (Olea europaea L.) |
| title_short | Reduced-Pressure Boiling Extraction of Oleuropein Coupled with Ultrasonication from Olive Leaves (Olea europaea L.) |
| title_sort | reduced pressure boiling extraction of oleuropein coupled with ultrasonication from olive leaves olea europaea l |
| url | http://dx.doi.org/10.1155/2015/719485 |
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