Effects of different drying methods and storage time on free radical scavenging activity and total phenolic content of Cosmos caudatus
The present study was conducted to determine the effect of air (AD), oven (OD) and freeze drying (FD) on the free radical scavenging activity and total phenolic content (TPC) of Cosmos caudatus and the effect of storage time by the comparison with a fresh sample (FS). Among the three drying methods...
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| Format: | Article |
| Language: | English |
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MDPI AG
2014
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| Online Access: | http://psasir.upm.edu.my/id/eprint/37349/1/Effects%20of%20different%20drying%20methods%20and%20storage%20time%20on%20free%20radical%20scavenging%20activity%20and%20total%20phenolic%20content%20of%20Cosmos%20caudatus.pdf |
| _version_ | 1796973127950925824 |
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| author | Mediani, Ahmed Abas, Faridah Tan, Chin Ping Khatib, Alfi |
| author_facet | Mediani, Ahmed Abas, Faridah Tan, Chin Ping Khatib, Alfi |
| author_sort | Mediani, Ahmed |
| collection | UPM |
| description | The present study was conducted to determine the effect of air (AD), oven (OD) and freeze drying (FD) on the free radical scavenging activity and total phenolic content (TPC) of Cosmos caudatus and the effect of storage time by the comparison with a fresh sample (FS). Among the three drying methods that were used, AD resulted in the highest free radical scavenging activity against 1,1-diphenyl-2-picrylhydrazyl (DPPH) (IC50 = 0.0223 mg/mL) and total phenolic content (27.4 g GAE/100 g), whereas OD produced the lowest scavenging activity and TPC value. After three months of storage, the dried samples showed a high and consistent free radical scavenging activity when compared to stored fresh material. The drying methods could preserve the quality of C. caudatus during storage and the stability of its bioactive components can be maintained. |
| first_indexed | 2024-03-06T08:38:06Z |
| format | Article |
| id | upm.eprints-37349 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T08:38:06Z |
| publishDate | 2014 |
| publisher | MDPI AG |
| record_format | dspace |
| spelling | upm.eprints-373492015-10-06T08:45:26Z http://psasir.upm.edu.my/id/eprint/37349/ Effects of different drying methods and storage time on free radical scavenging activity and total phenolic content of Cosmos caudatus Mediani, Ahmed Abas, Faridah Tan, Chin Ping Khatib, Alfi The present study was conducted to determine the effect of air (AD), oven (OD) and freeze drying (FD) on the free radical scavenging activity and total phenolic content (TPC) of Cosmos caudatus and the effect of storage time by the comparison with a fresh sample (FS). Among the three drying methods that were used, AD resulted in the highest free radical scavenging activity against 1,1-diphenyl-2-picrylhydrazyl (DPPH) (IC50 = 0.0223 mg/mL) and total phenolic content (27.4 g GAE/100 g), whereas OD produced the lowest scavenging activity and TPC value. After three months of storage, the dried samples showed a high and consistent free radical scavenging activity when compared to stored fresh material. The drying methods could preserve the quality of C. caudatus during storage and the stability of its bioactive components can be maintained. MDPI AG 2014 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/37349/1/Effects%20of%20different%20drying%20methods%20and%20storage%20time%20on%20free%20radical%20scavenging%20activity%20and%20total%20phenolic%20content%20of%20Cosmos%20caudatus.pdf Mediani, Ahmed and Abas, Faridah and Tan, Chin Ping and Khatib, Alfi (2014) Effects of different drying methods and storage time on free radical scavenging activity and total phenolic content of Cosmos caudatus. Antioxidants, 3 (2). pp. 358-370. ISSN 2076-3921 http://www.mdpi.com/2076-3921/3/2/358 10.3390/antiox3020358 |
| spellingShingle | Mediani, Ahmed Abas, Faridah Tan, Chin Ping Khatib, Alfi Effects of different drying methods and storage time on free radical scavenging activity and total phenolic content of Cosmos caudatus |
| title | Effects of different drying methods and storage time on free radical scavenging activity and total phenolic content of Cosmos caudatus |
| title_full | Effects of different drying methods and storage time on free radical scavenging activity and total phenolic content of Cosmos caudatus |
| title_fullStr | Effects of different drying methods and storage time on free radical scavenging activity and total phenolic content of Cosmos caudatus |
| title_full_unstemmed | Effects of different drying methods and storage time on free radical scavenging activity and total phenolic content of Cosmos caudatus |
| title_short | Effects of different drying methods and storage time on free radical scavenging activity and total phenolic content of Cosmos caudatus |
| title_sort | effects of different drying methods and storage time on free radical scavenging activity and total phenolic content of cosmos caudatus |
| url | http://psasir.upm.edu.my/id/eprint/37349/1/Effects%20of%20different%20drying%20methods%20and%20storage%20time%20on%20free%20radical%20scavenging%20activity%20and%20total%20phenolic%20content%20of%20Cosmos%20caudatus.pdf |
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