Antioxidant properties of selected Etlingera and Zingiber Species (Zingiberaceae) from Borneo Island
In this study, total phenolic and flavonoid contents as well as antioxidant properties of methanolic extracts of rhizomes and stems of four Zingiberaceae (Etlingera belalongensis, Etlingera velutina, Zingiber vinosum and Zingiber pseudopungens) were investigated. Evaluation of antioxidant activity w...
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| Format: | Article |
| Language: | English |
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Academic Journals, New York
2012
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| Online Access: | http://eprints.um.edu.my/10068/1/antioxidant_properties_of_selected_Etlingera_and_Zingiber_Species_%28Zingiberaceae%29_from_Borneo_Island.pdf |
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| author | Sabli, F. Mohamed, M. Rahmat, A. Ibrahim, H. Abu Bakar, M.F. |
| author_facet | Sabli, F. Mohamed, M. Rahmat, A. Ibrahim, H. Abu Bakar, M.F. |
| author_sort | Sabli, F. |
| collection | UM |
| description | In this study, total phenolic and flavonoid contents as well as antioxidant properties of methanolic extracts of rhizomes and stems of four Zingiberaceae (Etlingera belalongensis, Etlingera velutina, Zingiber vinosum and Zingiber pseudopungens) were investigated. Evaluation of antioxidant activity was conducted using 1,1-diphenyl-2-picrylhydrazyl free radical-scavenging (DPPH) assay, 2-2-azinobis-3-ethylbenzothioazaline-6-sulphonate radical scavenging (ABTS) assay and Ferric-Reducing Antioxidant Power (FRAP). The results showed the total phenolic and total flavanoid contents were in the range of 5.3-41.7 mg gallic acid equivalent/g and 1.09-5.86 mg catechin equivalent/g of dry sample, respectively. The antioxidant activities of the extracts as assessed by using DPPH and FRAP assays were strongly correlated with all phytochemical tested (p<0.05). As a conclusion, selected tropical gingers found in Sabah investigated in this study can be developed as natural antioxidant agents.
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| first_indexed | 2024-03-06T05:25:13Z |
| format | Article |
| id | um.eprints-10068 |
| institution | Universiti Malaya |
| language | English |
| last_indexed | 2024-03-06T05:25:13Z |
| publishDate | 2012 |
| publisher | Academic Journals, New York |
| record_format | dspace |
| spelling | um.eprints-100682014-10-27T03:23:27Z http://eprints.um.edu.my/10068/ Antioxidant properties of selected Etlingera and Zingiber Species (Zingiberaceae) from Borneo Island Sabli, F. Mohamed, M. Rahmat, A. Ibrahim, H. Abu Bakar, M.F. Q Science (General) In this study, total phenolic and flavonoid contents as well as antioxidant properties of methanolic extracts of rhizomes and stems of four Zingiberaceae (Etlingera belalongensis, Etlingera velutina, Zingiber vinosum and Zingiber pseudopungens) were investigated. Evaluation of antioxidant activity was conducted using 1,1-diphenyl-2-picrylhydrazyl free radical-scavenging (DPPH) assay, 2-2-azinobis-3-ethylbenzothioazaline-6-sulphonate radical scavenging (ABTS) assay and Ferric-Reducing Antioxidant Power (FRAP). The results showed the total phenolic and total flavanoid contents were in the range of 5.3-41.7 mg gallic acid equivalent/g and 1.09-5.86 mg catechin equivalent/g of dry sample, respectively. The antioxidant activities of the extracts as assessed by using DPPH and FRAP assays were strongly correlated with all phytochemical tested (p<0.05). As a conclusion, selected tropical gingers found in Sabah investigated in this study can be developed as natural antioxidant agents. Academic Journals, New York 2012 Article PeerReviewed application/pdf en http://eprints.um.edu.my/10068/1/antioxidant_properties_of_selected_Etlingera_and_Zingiber_Species_%28Zingiberaceae%29_from_Borneo_Island.pdf Sabli, F. and Mohamed, M. and Rahmat, A. and Ibrahim, H. and Abu Bakar, M.F. (2012) Antioxidant properties of selected Etlingera and Zingiber Species (Zingiberaceae) from Borneo Island. International Journal of Biological Chemistry, 6 (1). pp. 1-9. ISSN 1819-155X, DOI https://doi.org/10.3923/ijbc.2012.1.9 <https://doi.org/10.3923/ijbc.2012.1.9>. http://scialert.net/abstract/?doi=ijbc.2012.1.9 DOI: 10.3923/ijbc.2012.1.9 |
| spellingShingle | Q Science (General) Sabli, F. Mohamed, M. Rahmat, A. Ibrahim, H. Abu Bakar, M.F. Antioxidant properties of selected Etlingera and Zingiber Species (Zingiberaceae) from Borneo Island |
| title | Antioxidant properties of selected Etlingera and Zingiber Species (Zingiberaceae) from Borneo Island |
| title_full | Antioxidant properties of selected Etlingera and Zingiber Species (Zingiberaceae) from Borneo Island |
| title_fullStr | Antioxidant properties of selected Etlingera and Zingiber Species (Zingiberaceae) from Borneo Island |
| title_full_unstemmed | Antioxidant properties of selected Etlingera and Zingiber Species (Zingiberaceae) from Borneo Island |
| title_short | Antioxidant properties of selected Etlingera and Zingiber Species (Zingiberaceae) from Borneo Island |
| title_sort | antioxidant properties of selected etlingera and zingiber species zingiberaceae from borneo island |
| topic | Q Science (General) |
| url | http://eprints.um.edu.my/10068/1/antioxidant_properties_of_selected_Etlingera_and_Zingiber_Species_%28Zingiberaceae%29_from_Borneo_Island.pdf |
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