Evaluation of the phytochemical content, antioxidant activity and antimicrobial properties of mountain tea (Sideritis syriaca) decoction
Mountain tea is an easily available, low cost herb consumed on a daily basis, and is believed to contain bioactive phytochemicals. The evaluation of functional properties and bioactive composition of the decoction is essential for its exploitation as a health-promoting beverage. The antimicrobial pr...
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| Format: | Article |
| Language: | English |
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Elsevier
2014-01-01
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| Series: | Journal of Functional Foods |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1756464613002429 |
| _version_ | 1818406315386470400 |
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| author | Vlasios Goulas Vassiliki Exarchou Loukas Kanetis Ioannis P. Gerothanassis |
| author_facet | Vlasios Goulas Vassiliki Exarchou Loukas Kanetis Ioannis P. Gerothanassis |
| author_sort | Vlasios Goulas |
| collection | DOAJ |
| description | Mountain tea is an easily available, low cost herb consumed on a daily basis, and is believed to contain bioactive phytochemicals. The evaluation of functional properties and bioactive composition of the decoction is essential for its exploitation as a health-promoting beverage. The antimicrobial properties of Sideritis syriaca decoction were demonstrated a considerable antimicrobial activity against Staphylococcus aureus. In addition, its antioxidant activity was indicated from different in vitro assays. HPLC–SPE–NMR technique was then optimized to analyze its phytochemical content. The major phytochemicals were found to be hypoelatin and isoscutellarein diglucosides, while the phenylpropanoids such as verbascoside, martynoside, lavandulifolioside, and chlorogenic acid were also identified by combining NMR, UV and MS data. Finally, the on-line HPLC–DPPH demonstrated that the antioxidant activity of the decoction was mainly due to its flavonoid content. Overall, mountain tea decoction can be considered as a health-promoting beverage with functional properties that deserve further exploitation. |
| first_indexed | 2024-12-14T09:09:59Z |
| format | Article |
| id | doaj.art-caa2cc81c7de4a15b077a0d916ea39f6 |
| institution | Directory Open Access Journal |
| issn | 1756-4646 |
| language | English |
| last_indexed | 2024-12-14T09:09:59Z |
| publishDate | 2014-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Functional Foods |
| spelling | doaj.art-caa2cc81c7de4a15b077a0d916ea39f62022-12-21T23:08:36ZengElsevierJournal of Functional Foods1756-46462014-01-016248258Evaluation of the phytochemical content, antioxidant activity and antimicrobial properties of mountain tea (Sideritis syriaca) decoctionVlasios Goulas0Vassiliki Exarchou1Loukas Kanetis2Ioannis P. Gerothanassis3Section of Organic Chemistry and Biochemistry, Department of Chemistry, University of Ioannina, Ioannina GR-45110, Greece; Cyprus University of Technology, Department of Agricultural Sciences, Biotechnology and Food Science, 3603 Lemesos, Cyprus; Corresponding authors. Address: Cyprus University of Technology, Department of Agricultural Sciences, Biotechnology and Food Science, 3603 Lemesos, Cyprus. Tel.: +357 2500 2141 (V. Goulas). NMR Center, University of Ioannina, Ioannina GR-45110, Greece. Tel.: +30 26510 08334; fax: +30 26510 08799 (V. Exarchou).NMR Center, University of Ioannina, Ioannina GR-45110, Greece; Corresponding authors. Address: Cyprus University of Technology, Department of Agricultural Sciences, Biotechnology and Food Science, 3603 Lemesos, Cyprus. Tel.: +357 2500 2141 (V. Goulas). NMR Center, University of Ioannina, Ioannina GR-45110, Greece. Tel.: +30 26510 08334; fax: +30 26510 08799 (V. Exarchou).Cyprus University of Technology, Department of Agricultural Sciences, Biotechnology and Food Science, 3603 Lemesos, CyprusSection of Organic Chemistry and Biochemistry, Department of Chemistry, University of Ioannina, Ioannina GR-45110, GreeceMountain tea is an easily available, low cost herb consumed on a daily basis, and is believed to contain bioactive phytochemicals. The evaluation of functional properties and bioactive composition of the decoction is essential for its exploitation as a health-promoting beverage. The antimicrobial properties of Sideritis syriaca decoction were demonstrated a considerable antimicrobial activity against Staphylococcus aureus. In addition, its antioxidant activity was indicated from different in vitro assays. HPLC–SPE–NMR technique was then optimized to analyze its phytochemical content. The major phytochemicals were found to be hypoelatin and isoscutellarein diglucosides, while the phenylpropanoids such as verbascoside, martynoside, lavandulifolioside, and chlorogenic acid were also identified by combining NMR, UV and MS data. Finally, the on-line HPLC–DPPH demonstrated that the antioxidant activity of the decoction was mainly due to its flavonoid content. Overall, mountain tea decoction can be considered as a health-promoting beverage with functional properties that deserve further exploitation.http://www.sciencedirect.com/science/article/pii/S1756464613002429FlavonoidsHPLC–DPPHHPLC–SPE–NMRRadical scavenging activityPhenylpropanoidsStaphylococcus |
| spellingShingle | Vlasios Goulas Vassiliki Exarchou Loukas Kanetis Ioannis P. Gerothanassis Evaluation of the phytochemical content, antioxidant activity and antimicrobial properties of mountain tea (Sideritis syriaca) decoction Journal of Functional Foods Flavonoids HPLC–DPPH HPLC–SPE–NMR Radical scavenging activity Phenylpropanoids Staphylococcus |
| title | Evaluation of the phytochemical content, antioxidant activity and antimicrobial properties of mountain tea (Sideritis syriaca) decoction |
| title_full | Evaluation of the phytochemical content, antioxidant activity and antimicrobial properties of mountain tea (Sideritis syriaca) decoction |
| title_fullStr | Evaluation of the phytochemical content, antioxidant activity and antimicrobial properties of mountain tea (Sideritis syriaca) decoction |
| title_full_unstemmed | Evaluation of the phytochemical content, antioxidant activity and antimicrobial properties of mountain tea (Sideritis syriaca) decoction |
| title_short | Evaluation of the phytochemical content, antioxidant activity and antimicrobial properties of mountain tea (Sideritis syriaca) decoction |
| title_sort | evaluation of the phytochemical content antioxidant activity and antimicrobial properties of mountain tea sideritis syriaca decoction |
| topic | Flavonoids HPLC–DPPH HPLC–SPE–NMR Radical scavenging activity Phenylpropanoids Staphylococcus |
| url | http://www.sciencedirect.com/science/article/pii/S1756464613002429 |
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