Effect of solvent pH, microwave power and extraction time on microwave-assisted extraction of Hibiscus rosa-sinensis
The objectives of the study were to evaluate the effect of solvent extraction pH, microwave extraction power and time on the yield of total anthocyanin and colour of Hibiscus rosa-sinensis (H. rosa-sinensis) extract and to evaluate the storage stability of total anthocyanin content and antioxidant a...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Italian Association of Chemical Engineering
2018
|
| Online Access: | http://psasir.upm.edu.my/id/eprint/72451/ http://psasir.upm.edu.my/id/eprint/72451/1/Effect%20of%20solvent%20pH%2C%20microwave%20power%20and%20extraction%20time%20on%20microwave-assisted%20extraction%20of%20Hibiscus%20rosa-sinensis.pdf |
| _version_ | 1848857122035466240 |
|---|---|
| author | Mohd Jusoh, Yanti Maslina Idris, Amirah Adlina Khairuddin, Nozieana Abang Zaidel, Dayang Norulfairuz Hashim, Zanariah Nik Mahmood, Nik Azmi Zakaria, Zaki Yamani Muhamad, Ida Idayu |
| author_facet | Mohd Jusoh, Yanti Maslina Idris, Amirah Adlina Khairuddin, Nozieana Abang Zaidel, Dayang Norulfairuz Hashim, Zanariah Nik Mahmood, Nik Azmi Zakaria, Zaki Yamani Muhamad, Ida Idayu |
| author_sort | Mohd Jusoh, Yanti Maslina |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | The objectives of the study were to evaluate the effect of solvent extraction pH, microwave extraction power and time on the yield of total anthocyanin and colour of Hibiscus rosa-sinensis (H. rosa-sinensis) extract and to evaluate the storage stability of total anthocyanin content and antioxidant activity of these extracts during storage. The factors studied were solvent pH (1.0 and 4.0), microwave power (400 W and 800 W) and extraction time (1 min and 3 min). Results showed that the highest total anthocyanin extracted was 9.56 ±0.001 g cyanidin-3-glucoside when extraction was performed using solvent of pH 4 at 800 W and 3 min and followed by 8.33 ± 0.001 g cyanidn-3-glucoside using solvent of pH 2 at 800 W and 3 min. H. rosa-sinensis extract in pH 2 was in red while the extract in pH 4 was in dark red. For the 10 d storage stability analysis, H. rosa-sinensis extract of pH 2 and pH 4 at 800 W and 3 min were selected. During storage, the extract in pH 4 showed an increase in total anthocyanin content and radical scavenging inhibition percentage. On contrary, the total anthocyanin content and radical inhibition percentage for pH 2 extraction sample decreased during storage. |
| first_indexed | 2025-11-15T11:52:31Z |
| format | Article |
| id | upm-72451 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T11:52:31Z |
| publishDate | 2018 |
| publisher | Italian Association of Chemical Engineering |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-724512020-06-11T04:15:37Z http://psasir.upm.edu.my/id/eprint/72451/ Effect of solvent pH, microwave power and extraction time on microwave-assisted extraction of Hibiscus rosa-sinensis Mohd Jusoh, Yanti Maslina Idris, Amirah Adlina Khairuddin, Nozieana Abang Zaidel, Dayang Norulfairuz Hashim, Zanariah Nik Mahmood, Nik Azmi Zakaria, Zaki Yamani Muhamad, Ida Idayu The objectives of the study were to evaluate the effect of solvent extraction pH, microwave extraction power and time on the yield of total anthocyanin and colour of Hibiscus rosa-sinensis (H. rosa-sinensis) extract and to evaluate the storage stability of total anthocyanin content and antioxidant activity of these extracts during storage. The factors studied were solvent pH (1.0 and 4.0), microwave power (400 W and 800 W) and extraction time (1 min and 3 min). Results showed that the highest total anthocyanin extracted was 9.56 ±0.001 g cyanidin-3-glucoside when extraction was performed using solvent of pH 4 at 800 W and 3 min and followed by 8.33 ± 0.001 g cyanidn-3-glucoside using solvent of pH 2 at 800 W and 3 min. H. rosa-sinensis extract in pH 2 was in red while the extract in pH 4 was in dark red. For the 10 d storage stability analysis, H. rosa-sinensis extract of pH 2 and pH 4 at 800 W and 3 min were selected. During storage, the extract in pH 4 showed an increase in total anthocyanin content and radical scavenging inhibition percentage. On contrary, the total anthocyanin content and radical inhibition percentage for pH 2 extraction sample decreased during storage. Italian Association of Chemical Engineering 2018 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/72451/1/Effect%20of%20solvent%20pH%2C%20microwave%20power%20and%20extraction%20time%20on%20microwave-assisted%20extraction%20of%20Hibiscus%20rosa-sinensis.pdf Mohd Jusoh, Yanti Maslina and Idris, Amirah Adlina and Khairuddin, Nozieana and Abang Zaidel, Dayang Norulfairuz and Hashim, Zanariah and Nik Mahmood, Nik Azmi and Zakaria, Zaki Yamani and Muhamad, Ida Idayu (2018) Effect of solvent pH, microwave power and extraction time on microwave-assisted extraction of Hibiscus rosa-sinensis. Chemical Engineering Transactions, 63. 541 - 546. ISSN 1974-9791; ESSN: 2283-9216 https://www.cetjournal.it/index.php/cet/article/view/CET1863091 10.3303/CET1863091 |
| spellingShingle | Mohd Jusoh, Yanti Maslina Idris, Amirah Adlina Khairuddin, Nozieana Abang Zaidel, Dayang Norulfairuz Hashim, Zanariah Nik Mahmood, Nik Azmi Zakaria, Zaki Yamani Muhamad, Ida Idayu Effect of solvent pH, microwave power and extraction time on microwave-assisted extraction of Hibiscus rosa-sinensis |
| title | Effect of solvent pH, microwave power and extraction time on microwave-assisted extraction of Hibiscus rosa-sinensis |
| title_full | Effect of solvent pH, microwave power and extraction time on microwave-assisted extraction of Hibiscus rosa-sinensis |
| title_fullStr | Effect of solvent pH, microwave power and extraction time on microwave-assisted extraction of Hibiscus rosa-sinensis |
| title_full_unstemmed | Effect of solvent pH, microwave power and extraction time on microwave-assisted extraction of Hibiscus rosa-sinensis |
| title_short | Effect of solvent pH, microwave power and extraction time on microwave-assisted extraction of Hibiscus rosa-sinensis |
| title_sort | effect of solvent ph, microwave power and extraction time on microwave-assisted extraction of hibiscus rosa-sinensis |
| url | http://psasir.upm.edu.my/id/eprint/72451/ http://psasir.upm.edu.my/id/eprint/72451/ http://psasir.upm.edu.my/id/eprint/72451/ http://psasir.upm.edu.my/id/eprint/72451/1/Effect%20of%20solvent%20pH%2C%20microwave%20power%20and%20extraction%20time%20on%20microwave-assisted%20extraction%20of%20Hibiscus%20rosa-sinensis.pdf |