Optimization of microwave-enhanced extraction parameters to recover phenolic compounds and antioxidants from Corchorus olitorius leaves
Vegetables are industrial crops endowed with both nutritional and medicinal values. The overwhelming contributions of vegetables to human living in the form of nutrients and medicine cannot be under emphasised. Thus, this study examined the recoveries of phenolic compounds and antioxidants from Corc...
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Springer Science and Business Media Deutschland GmbH
2023
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| Online Access: | http://umpir.ump.edu.my/id/eprint/38690/ http://umpir.ump.edu.my/id/eprint/38690/1/Optimization%20of%20microwave-enhanced%20extraction%20parameters%20to%20recover.pdf http://umpir.ump.edu.my/id/eprint/38690/2/Optimization%20of%20microwave-enhanced%20extraction%20parameters%20to%20recover%20phenolic%20compounds%20and%20antioxidants%20from%20Corchorus%20olitorius%20leaves_ABS.pdf |
| _version_ | 1848825572652744704 |
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| author | Alara, Oluwaseun Ruth Abdurahman, Nour Hamid Ali, Hassan Alsaggaf |
| author_facet | Alara, Oluwaseun Ruth Abdurahman, Nour Hamid Ali, Hassan Alsaggaf |
| author_sort | Alara, Oluwaseun Ruth |
| building | UMP Institutional Repository |
| collection | Online Access |
| description | Vegetables are industrial crops endowed with both nutritional and medicinal values. The overwhelming contributions of vegetables to human living in the form of nutrients and medicine cannot be under emphasised. Thus, this study examined the recoveries of phenolic compounds and antioxidants from Corchorus olitorius leaves using a microwave-enhanced extraction technique. Furthermore, the phenolic compounds in the leaf extract of C. olitorius were comprehensively identified using liquid chromatography-mass spectrometry quadrupole of flight (LC-QToF-MS). At the optimized conditions of microwave-enhanced extraction (extraction time of 131 s, microwave power 305 W, solvent/sample ratio of 12 mL/g, and ethanol concentration of 50%), total phenolic content (TPC) of 343.098 ± 3.05 mg GAE/10 g d.b., IC50 values of 68.89 ± 1.08 and 29.76 ± 1.00 µg/mL for 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2′-azino-bis(3-ethylbenzothiazoline-6′-sulfonic acid) (ABTS) assays, respectively, were achieved. Furthermore, an aggregate of fourteen phenolic compounds that include 1-galloyl-glucose, 1,3,5-O-tricaffeoylquinic acid, procyanidin C-1, 4,4′,5,6-tetrahydroxystilbene, 3,4,5-O-tricaffeoylquinic acid, 5-desgalloylstachyurin, sanguiin H-4, corilagin_1, 1-O-galloylpedunculagin, laevigatin A, pedunculagin, 2,4,6-tri-O-galloyl-β-D-glucose, 1,3,6-trigalloyl-β-D-glucose, and 1,2,3,6-tetra-O-galloyl-β-D-glucose was tentatively identified in the leaf extract of C. olitorius. In general, this study has established C. olitorius leaves as sources of phenolic compounds and natural antioxidants. Thus, the intake can continue to be promoted as a way forward in solving the problem of food insecurity. |
| first_indexed | 2025-11-15T03:31:04Z |
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| id | ump-38690 |
| institution | Universiti Malaysia Pahang |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-15T03:31:04Z |
| publishDate | 2023 |
| publisher | Springer Science and Business Media Deutschland GmbH |
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| spelling | ump-386902024-08-19T23:58:38Z http://umpir.ump.edu.my/id/eprint/38690/ Optimization of microwave-enhanced extraction parameters to recover phenolic compounds and antioxidants from Corchorus olitorius leaves Alara, Oluwaseun Ruth Abdurahman, Nour Hamid Ali, Hassan Alsaggaf QD Chemistry T Technology (General) TA Engineering (General). Civil engineering (General) TP Chemical technology Vegetables are industrial crops endowed with both nutritional and medicinal values. The overwhelming contributions of vegetables to human living in the form of nutrients and medicine cannot be under emphasised. Thus, this study examined the recoveries of phenolic compounds and antioxidants from Corchorus olitorius leaves using a microwave-enhanced extraction technique. Furthermore, the phenolic compounds in the leaf extract of C. olitorius were comprehensively identified using liquid chromatography-mass spectrometry quadrupole of flight (LC-QToF-MS). At the optimized conditions of microwave-enhanced extraction (extraction time of 131 s, microwave power 305 W, solvent/sample ratio of 12 mL/g, and ethanol concentration of 50%), total phenolic content (TPC) of 343.098 ± 3.05 mg GAE/10 g d.b., IC50 values of 68.89 ± 1.08 and 29.76 ± 1.00 µg/mL for 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2′-azino-bis(3-ethylbenzothiazoline-6′-sulfonic acid) (ABTS) assays, respectively, were achieved. Furthermore, an aggregate of fourteen phenolic compounds that include 1-galloyl-glucose, 1,3,5-O-tricaffeoylquinic acid, procyanidin C-1, 4,4′,5,6-tetrahydroxystilbene, 3,4,5-O-tricaffeoylquinic acid, 5-desgalloylstachyurin, sanguiin H-4, corilagin_1, 1-O-galloylpedunculagin, laevigatin A, pedunculagin, 2,4,6-tri-O-galloyl-β-D-glucose, 1,3,6-trigalloyl-β-D-glucose, and 1,2,3,6-tetra-O-galloyl-β-D-glucose was tentatively identified in the leaf extract of C. olitorius. In general, this study has established C. olitorius leaves as sources of phenolic compounds and natural antioxidants. Thus, the intake can continue to be promoted as a way forward in solving the problem of food insecurity. Springer Science and Business Media Deutschland GmbH 2023-08 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/38690/1/Optimization%20of%20microwave-enhanced%20extraction%20parameters%20to%20recover.pdf pdf en http://umpir.ump.edu.my/id/eprint/38690/2/Optimization%20of%20microwave-enhanced%20extraction%20parameters%20to%20recover%20phenolic%20compounds%20and%20antioxidants%20from%20Corchorus%20olitorius%20leaves_ABS.pdf Alara, Oluwaseun Ruth and Abdurahman, Nour Hamid and Ali, Hassan Alsaggaf (2023) Optimization of microwave-enhanced extraction parameters to recover phenolic compounds and antioxidants from Corchorus olitorius leaves. Chemical Papers, 77 (8). pp. 4217-4233. ISSN 0366-6352. (Published) https://doi.org/10.1007/s11696-023-02771-x https://doi.org/10.1007/s11696-023-02771-x |
| spellingShingle | QD Chemistry T Technology (General) TA Engineering (General). Civil engineering (General) TP Chemical technology Alara, Oluwaseun Ruth Abdurahman, Nour Hamid Ali, Hassan Alsaggaf Optimization of microwave-enhanced extraction parameters to recover phenolic compounds and antioxidants from Corchorus olitorius leaves |
| title | Optimization of microwave-enhanced extraction parameters to recover phenolic compounds and antioxidants from Corchorus olitorius leaves |
| title_full | Optimization of microwave-enhanced extraction parameters to recover phenolic compounds and antioxidants from Corchorus olitorius leaves |
| title_fullStr | Optimization of microwave-enhanced extraction parameters to recover phenolic compounds and antioxidants from Corchorus olitorius leaves |
| title_full_unstemmed | Optimization of microwave-enhanced extraction parameters to recover phenolic compounds and antioxidants from Corchorus olitorius leaves |
| title_short | Optimization of microwave-enhanced extraction parameters to recover phenolic compounds and antioxidants from Corchorus olitorius leaves |
| title_sort | optimization of microwave-enhanced extraction parameters to recover phenolic compounds and antioxidants from corchorus olitorius leaves |
| topic | QD Chemistry T Technology (General) TA Engineering (General). Civil engineering (General) TP Chemical technology |
| url | http://umpir.ump.edu.my/id/eprint/38690/ http://umpir.ump.edu.my/id/eprint/38690/ http://umpir.ump.edu.my/id/eprint/38690/ http://umpir.ump.edu.my/id/eprint/38690/1/Optimization%20of%20microwave-enhanced%20extraction%20parameters%20to%20recover.pdf http://umpir.ump.edu.my/id/eprint/38690/2/Optimization%20of%20microwave-enhanced%20extraction%20parameters%20to%20recover%20phenolic%20compounds%20and%20antioxidants%20from%20Corchorus%20olitorius%20leaves_ABS.pdf |