Influence of continued ingestion of matcha on emotional behaviors after social stress in mice |
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| Authors: | Manami Monobe Sachiko Nomura Kaori Ema Hideki Horie |
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| Affiliation: | 1. Tea Research Division, Institute of Fruit Tree and Tea Science, National Agriculture and Food Research Organization (NARO), Shizuoka, Japanmonobe@affrc.go.jp;3. Tea Research Division, Institute of Fruit Tree and Tea Science, National Agriculture and Food Research Organization (NARO), Shizuoka, Japan |
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| Abstract: | ABSTRACTMatcha has high contents of theanine, caffeine, and epigallocatechin gallate (EGCG). Among these, theanine reduces psychological and physiological stress responses, although this effect is disturbed by caffeine and EGCG. It was reported that the continued ingestion of high-quality matcha, whose molar ratio of caffeine and EGCG to theanine and arginine was kept at less than two, reduces stress responses. However, most matcha on the market has an inadequate ratio. Therefore, we investigated the influence of continued ingestion of matcha with a ratio of over two, on emotional behaviors after stress. Continued ingestion of matcha was suggested to reduce the anxiety-like behaviors induced by psychological and physiological stresses. |
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| Keywords: | Matcha caffeine theanine psychosocial stress emotional behaviors |
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