Effect on the Epigallocatechin Gallate/Epigallocatechin Ratio in a Green Tea (Camellia sinensis L.) Extract of Different Extraction Temperatures and Its Effect on IgA Production in Mice
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概要
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We found that the epigallocatechin gallate (EGCG)/epigallocatechin (EGC) ratio in a green tea (Camellia sinensis L.) extract was affected by the extraction temperature. The EGCG/EGC ratio in the 4 °C extract was around 1:3-4, whereas in the 100 °C extract, it was around 1:0.7. Oral administration of the mixture with a high EGC ratio (1:2-3 = EGCG/EGC) resulted in greater IgA production by murine Peyer’s patch cells.
- 社団法人 日本農芸化学会の論文
- 2010-12-23
著者
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MAEDA YAMAMOTO
National Institute of Vegetable and Tea Sciences, National Agriculture and Food Research Organizatio
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EMA Kaori
National Institute of Vegetable and Tea Sciences, National Agriculture and Food Research Organizatio
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MONOBE Manami
National Institute of Vegetable and Tea Sciences, National Agriculture and Food Research Organizatio
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Tokuda Yoshiko
National Institute of Vegetable and Tea Science, NARO
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Ema Kaori
National Institute Of Vegetable And Tea Sciences National Agriculture And Food Research Organization
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Monobe Manami
National Institute Of Vegetable And Tea Sciences National Agriculture And Food Research Organization
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Maeda Yamamoto
National Institute Of Vegetable And Tea Sciences National Agriculture And Food Research Organization
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Ema Kaori
National Institute Of Vegetable And Tea Science Naro
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Maeda Yamamoto
National Institute Of Vegetable And Tea Science
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Monobe Manami
National Institute Of 10 Vegetable And Tea Science
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Ema Kaori
National Institute Of Vegetable And Tea Science
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Monobe Manami
National Inst. Of 10 Vegetable And Tea Sci. Naro
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Tokuda Yoshiko
National Institute Of Vegetable And Tea Science
関連論文
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- Effect on the Epigallocatechin Gallate/Epigallocatechin Ratio in a Green Tea (Camellia sinensis L.) Extract of Different Extraction Temperatures and Its Effect on IgA Production in Mice
- High Frequency of Simple and Complex Chromosome Aberrations Detected in the Tokai-mura Survivor four and Five Years after the 1999 Criticality Accident
- Changes in O-methylated Catechin and Chemical Component Contents of 'Benifuuki' Green Tea (Camellia sinensis L.) Beverage under Various Extraction Conditions
- Enhancement of the Phagocytic Activity of Macrophage-Like Cells with a Crude Polysaccharide Derived from Green Tea (Camellia sinensis) Extract
- Enhancement of Production of IgM and Interferon-β in Human Cell Lines by Poly-lysine
- Effect on the Epigallocatechin Gallate/Epigallocatechin Ratio in a Green Tea (Camellia sinensis L.) Extract of Different Extraction Temperatures and Its Effect on IgA Production in Mice
- High Frequency of Simple and Complex Chromosome Aberrations Detected in the Tokai-mura Survivor four and Five Years after the 1999 Criticality Accident
- Increased Plasma Concentration of Epigallocatechin in Mice after Orally Administering a Green Tea (Camellia sinensis L.) Extract Supplemented by Steamed Rice