Antioxidative and Antimelanoma Effects of Various Tea Extracts via a Green Extraction Method
Tea (Camellia sinensis) contains high level of antioxidant elements and is a well-known beverage consumed worldwide. The purpose of this study is to compare different concentrations of green tea, black tea, oolong tea 861, oolong tea 732, and jasmine green tea. These five types of tea extracts were...
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | Journal of Food Quality |
| Online Access: | http://dx.doi.org/10.1155/2018/5156073 |
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| author | Yihui Chen Jyun-Yin Huang Yichi Lin I-Fan Lin Yi-Ru Lu Li-Heng Liu Hui-Min David Wang |
| author_facet | Yihui Chen Jyun-Yin Huang Yichi Lin I-Fan Lin Yi-Ru Lu Li-Heng Liu Hui-Min David Wang |
| author_sort | Yihui Chen |
| collection | DOAJ |
| description | Tea (Camellia sinensis) contains high level of antioxidant elements and is a well-known beverage consumed worldwide. The purpose of this study is to compare different concentrations of green tea, black tea, oolong tea 861, oolong tea 732, and jasmine green tea. These five types of tea extracts were known to have antioxidative properties, reducing power, and metal ion chelating activity. The current study compared these five extracts in terms of their inhibiting effects on human malignant melanoma: A2058 and A375. To determine the cell viability between normal cell and malignant melanoma cells, an MTT assay was applied to evaluate the cytotoxic potential on human melanoma cells, with all tea extracts showing decreased cell viability with increasing tea extract concentrations. Cytotoxicity on HaCat (normal skin cells) showed no effect on the cell viabilities at lower concentrations of the tea extracts. These results suggest the antioxidative effect of five tea extracts that protect against oxidation and melanoma production, with green tea and jasmine green tea showing the lowest cell viability when tested against malignant melanoma cells. |
| format | Article |
| id | doaj-art-20c9e2d28fd24ddf82e19e1e8dbf719d |
| institution | Kabale University |
| issn | 0146-9428 1745-4557 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Food Quality |
| spelling | doaj-art-20c9e2d28fd24ddf82e19e1e8dbf719d2025-08-20T03:54:47ZengWileyJournal of Food Quality0146-94281745-45572018-01-01201810.1155/2018/51560735156073Antioxidative and Antimelanoma Effects of Various Tea Extracts via a Green Extraction MethodYihui Chen0Jyun-Yin Huang1Yichi Lin2I-Fan Lin3Yi-Ru Lu4Li-Heng Liu5Hui-Min David Wang6Institute of Postharvest Technology of Agricultural Products, College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, ChinaGraduate Institute of Biomedical Engineering, National Chung Hsing University, Taichung 402, TaiwanDepartment of Biology, University of Texas at San Antonio, San Antonio, TX 78249, USAGraduate Institute of Biotechnology, National Chung Hsing University, Taichung 402, TaiwanDepartment of Biotechnology, National Chung Hsing University, Taichung 402, TaiwanDepartment of Life Science, National Chung Hsing University, Taichung 402, TaiwanGraduate Institute of Biomedical Engineering, National Chung Hsing University, Taichung 402, TaiwanTea (Camellia sinensis) contains high level of antioxidant elements and is a well-known beverage consumed worldwide. The purpose of this study is to compare different concentrations of green tea, black tea, oolong tea 861, oolong tea 732, and jasmine green tea. These five types of tea extracts were known to have antioxidative properties, reducing power, and metal ion chelating activity. The current study compared these five extracts in terms of their inhibiting effects on human malignant melanoma: A2058 and A375. To determine the cell viability between normal cell and malignant melanoma cells, an MTT assay was applied to evaluate the cytotoxic potential on human melanoma cells, with all tea extracts showing decreased cell viability with increasing tea extract concentrations. Cytotoxicity on HaCat (normal skin cells) showed no effect on the cell viabilities at lower concentrations of the tea extracts. These results suggest the antioxidative effect of five tea extracts that protect against oxidation and melanoma production, with green tea and jasmine green tea showing the lowest cell viability when tested against malignant melanoma cells.http://dx.doi.org/10.1155/2018/5156073 |
| spellingShingle | Yihui Chen Jyun-Yin Huang Yichi Lin I-Fan Lin Yi-Ru Lu Li-Heng Liu Hui-Min David Wang Antioxidative and Antimelanoma Effects of Various Tea Extracts via a Green Extraction Method Journal of Food Quality |
| title | Antioxidative and Antimelanoma Effects of Various Tea Extracts via a Green Extraction Method |
| title_full | Antioxidative and Antimelanoma Effects of Various Tea Extracts via a Green Extraction Method |
| title_fullStr | Antioxidative and Antimelanoma Effects of Various Tea Extracts via a Green Extraction Method |
| title_full_unstemmed | Antioxidative and Antimelanoma Effects of Various Tea Extracts via a Green Extraction Method |
| title_short | Antioxidative and Antimelanoma Effects of Various Tea Extracts via a Green Extraction Method |
| title_sort | antioxidative and antimelanoma effects of various tea extracts via a green extraction method |
| url | http://dx.doi.org/10.1155/2018/5156073 |
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