Physiological effects of formulation containing tannase-converted green tea extract on skin care: physical stability, collagenase, elastase, and tyrosinase activities
Background: Green tea contains numerous polyphenols, which have health-promoting effects. The purpose of this study was to evaluate the effect of tannase-converted green tea extract (TGE) formulation on the physical stability and activities of skin-related enzymes. Methods: Physical stability was ev...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2014-03-01
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| Series: | Integrative Medicine Research |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2213422013000991 |
| _version_ | 1828467338850074624 |
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| author | Yang-Hee Hong Eun Young Jung Dong Ouk Noh Hyung Joo Suh |
| author_facet | Yang-Hee Hong Eun Young Jung Dong Ouk Noh Hyung Joo Suh |
| author_sort | Yang-Hee Hong |
| collection | DOAJ |
| description | Background: Green tea contains numerous polyphenols, which have health-promoting effects. The purpose of this study was to evaluate the effect of tannase-converted green tea extract (TGE) formulation on the physical stability and activities of skin-related enzymes.
Methods: Physical stability was evaluated by measuring the pH, precipitation, and colors at 25 ± 2 °C/ambient humidity and at 40 ± 2 °C/70% ± 5% relative humidity for 4 months. Activities of collagenase, elastase, and tyrosinase as skin-related enzymes were assessed on TGE formulation.
Results: The concentrations of epigallocatechin-3-gallate and epicatechin-3-gallate in green tea extract were greatly decreased to the extent of negligible level when treated with tannase. The formulation containing 5% tannase-converted green tea extract showed relatively stable pH, precipitation, and color features for 16 weeks. When TGE was added to the formulation, there was a significant increase in the inhibition of elastase and tyrosinase activities (p < 0.05) compared with the formulation containing 5% normal green tea extract.
Conclusion: The TGE could be used in cosmetics as skin antiwrinkling or depigmenting agent. |
| first_indexed | 2024-12-11T04:04:12Z |
| format | Article |
| id | doaj.art-72536ca717cd4ccd935b1d411c48f24a |
| institution | Directory Open Access Journal |
| issn | 2213-4220 |
| language | English |
| last_indexed | 2024-12-11T04:04:12Z |
| publishDate | 2014-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Integrative Medicine Research |
| spelling | doaj.art-72536ca717cd4ccd935b1d411c48f24a2022-12-22T01:21:33ZengElsevierIntegrative Medicine Research2213-42202014-03-0131253310.1016/j.imr.2013.12.003Physiological effects of formulation containing tannase-converted green tea extract on skin care: physical stability, collagenase, elastase, and tyrosinase activitiesYang-Hee Hong0Eun Young Jung1Dong Ouk Noh2Hyung Joo Suh3Department of Food and Nutrition, Korea University, Seoul, KoreaDepartment of Home Economic Education, Jeonju University, Jeonju, KoreaDepartment of Hotel Culinary Arts and Nutrition, Kaya University, Gyeongnam, KoreaDepartment of Food and Nutrition, Korea University, Seoul, KoreaBackground: Green tea contains numerous polyphenols, which have health-promoting effects. The purpose of this study was to evaluate the effect of tannase-converted green tea extract (TGE) formulation on the physical stability and activities of skin-related enzymes. Methods: Physical stability was evaluated by measuring the pH, precipitation, and colors at 25 ± 2 °C/ambient humidity and at 40 ± 2 °C/70% ± 5% relative humidity for 4 months. Activities of collagenase, elastase, and tyrosinase as skin-related enzymes were assessed on TGE formulation. Results: The concentrations of epigallocatechin-3-gallate and epicatechin-3-gallate in green tea extract were greatly decreased to the extent of negligible level when treated with tannase. The formulation containing 5% tannase-converted green tea extract showed relatively stable pH, precipitation, and color features for 16 weeks. When TGE was added to the formulation, there was a significant increase in the inhibition of elastase and tyrosinase activities (p < 0.05) compared with the formulation containing 5% normal green tea extract. Conclusion: The TGE could be used in cosmetics as skin antiwrinkling or depigmenting agent.http://www.sciencedirect.com/science/article/pii/S2213422013000991elastasegreen teastabilitytannasetyrosinase |
| spellingShingle | Yang-Hee Hong Eun Young Jung Dong Ouk Noh Hyung Joo Suh Physiological effects of formulation containing tannase-converted green tea extract on skin care: physical stability, collagenase, elastase, and tyrosinase activities Integrative Medicine Research elastase green tea stability tannase tyrosinase |
| title | Physiological effects of formulation containing tannase-converted green tea extract on skin care: physical stability, collagenase, elastase, and tyrosinase activities |
| title_full | Physiological effects of formulation containing tannase-converted green tea extract on skin care: physical stability, collagenase, elastase, and tyrosinase activities |
| title_fullStr | Physiological effects of formulation containing tannase-converted green tea extract on skin care: physical stability, collagenase, elastase, and tyrosinase activities |
| title_full_unstemmed | Physiological effects of formulation containing tannase-converted green tea extract on skin care: physical stability, collagenase, elastase, and tyrosinase activities |
| title_short | Physiological effects of formulation containing tannase-converted green tea extract on skin care: physical stability, collagenase, elastase, and tyrosinase activities |
| title_sort | physiological effects of formulation containing tannase converted green tea extract on skin care physical stability collagenase elastase and tyrosinase activities |
| topic | elastase green tea stability tannase tyrosinase |
| url | http://www.sciencedirect.com/science/article/pii/S2213422013000991 |
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