Antioxidant activity of herbal tea prepared from Cosmos caudatus leaves at different maturity stages
Herbal tea is widely consumed around the world because people believed that it contained high amount of antioxidant. However, usage of different maturity of the plants as raw materials could affect the antioxidant capacities in herbal tea. Hence, this paper reports the antioxidant activity of herbal...
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| Format: | Article |
| Language: | English |
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Faculty of Food Science and Technology, Universiti Putra Malaysia
2015
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| Online Access: | http://psasir.upm.edu.my/id/eprint/32823/ http://psasir.upm.edu.my/id/eprint/32823/1/%2843%29.pdf |
| _version_ | 1848847311841525760 |
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| author | Fatanah, Dian Nashiela Abdullah, Noriham Hashim, Nooraain Abdul Hamid, Azizah |
| author_facet | Fatanah, Dian Nashiela Abdullah, Noriham Hashim, Nooraain Abdul Hamid, Azizah |
| author_sort | Fatanah, Dian Nashiela |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Herbal tea is widely consumed around the world because people believed that it contained high amount of antioxidant. However, usage of different maturity of the plants as raw materials could affect the antioxidant capacities in herbal tea. Hence, this paper reports the antioxidant activity of herbal tea prepared from Cosmos caudatus at different maturity namely young, mature and old leaves. The analyses carried out were total phenolic content (TPC), total flavonoid content (TFC), ferric reducing antioxidant power (FRAP) and DPPH (2-2-diphenyl- 1-picrylhydrazyl) radical scavenging assays. Based on the results obtained, herbal tea prepared from young leaves had significantly strong (p<0.05) antioxidant activity for all assays tested than herbal tea prepared from mature and old leaves. In fact, TPC and TFC exhibited a strong positively correlation with reducing power but inversely correlated with DPPH scavenging activity indicating that these compounds are major contributors to the antioxidant activity. Thus, this shows that antioxidant activity in C. caudatus leaves reduced with increase maturity and hence it is recommended to use young leaves for herbal tea preparation since it possessed good antioxidant activity which benefits human health. |
| first_indexed | 2025-11-15T09:16:36Z |
| format | Article |
| id | upm-32823 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T09:16:36Z |
| publishDate | 2015 |
| publisher | Faculty of Food Science and Technology, Universiti Putra Malaysia |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-328232016-01-27T01:45:38Z http://psasir.upm.edu.my/id/eprint/32823/ Antioxidant activity of herbal tea prepared from Cosmos caudatus leaves at different maturity stages Fatanah, Dian Nashiela Abdullah, Noriham Hashim, Nooraain Abdul Hamid, Azizah Herbal tea is widely consumed around the world because people believed that it contained high amount of antioxidant. However, usage of different maturity of the plants as raw materials could affect the antioxidant capacities in herbal tea. Hence, this paper reports the antioxidant activity of herbal tea prepared from Cosmos caudatus at different maturity namely young, mature and old leaves. The analyses carried out were total phenolic content (TPC), total flavonoid content (TFC), ferric reducing antioxidant power (FRAP) and DPPH (2-2-diphenyl- 1-picrylhydrazyl) radical scavenging assays. Based on the results obtained, herbal tea prepared from young leaves had significantly strong (p<0.05) antioxidant activity for all assays tested than herbal tea prepared from mature and old leaves. In fact, TPC and TFC exhibited a strong positively correlation with reducing power but inversely correlated with DPPH scavenging activity indicating that these compounds are major contributors to the antioxidant activity. Thus, this shows that antioxidant activity in C. caudatus leaves reduced with increase maturity and hence it is recommended to use young leaves for herbal tea preparation since it possessed good antioxidant activity which benefits human health. Faculty of Food Science and Technology, Universiti Putra Malaysia 2015 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/32823/1/%2843%29.pdf Fatanah, Dian Nashiela and Abdullah, Noriham and Hashim, Nooraain and Abdul Hamid, Azizah (2015) Antioxidant activity of herbal tea prepared from Cosmos caudatus leaves at different maturity stages. International Food Research Journal, 22 (3). pp. 1189-1194. ISSN 1985-4668; ESSN: 2231-7546 http://www.ifrj.upm.edu.my/22%20%2803%29%202015/%2843%29.pdf |
| spellingShingle | Fatanah, Dian Nashiela Abdullah, Noriham Hashim, Nooraain Abdul Hamid, Azizah Antioxidant activity of herbal tea prepared from Cosmos caudatus leaves at different maturity stages |
| title | Antioxidant activity of herbal tea prepared from Cosmos caudatus leaves at different maturity stages |
| title_full | Antioxidant activity of herbal tea prepared from Cosmos caudatus leaves at different maturity stages |
| title_fullStr | Antioxidant activity of herbal tea prepared from Cosmos caudatus leaves at different maturity stages |
| title_full_unstemmed | Antioxidant activity of herbal tea prepared from Cosmos caudatus leaves at different maturity stages |
| title_short | Antioxidant activity of herbal tea prepared from Cosmos caudatus leaves at different maturity stages |
| title_sort | antioxidant activity of herbal tea prepared from cosmos caudatus leaves at different maturity stages |
| url | http://psasir.upm.edu.my/id/eprint/32823/ http://psasir.upm.edu.my/id/eprint/32823/ http://psasir.upm.edu.my/id/eprint/32823/1/%2843%29.pdf |