Antioxidative Effects of Black Tea Theaflavins and Thearubigin on Lipid Peroxidation of Rat Liver Homogenates Induced by tert-Butyl Hydroperoxide
The antioxidative activity of theaflavins (TFs) and thearubigin (TR) purified from the infusion of black tea leaves was examined using the tert-butyl hydroperoxide-induced lipid peroxidation of rat liver homogenates.The concentrations which produced 50% inhibition of lipid peroxidation (IC50) by the...
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| Published in | Biological & pharmaceutical bulletin Vol. 17; no. 1; pp. 146 - 149 |
|---|---|
| Main Authors | , , , |
| Format | Journal Article |
| Language | English |
| Published |
Tokyo
The Pharmaceutical Society of Japan
01.01.1994
Maruzen Japan Science and Technology Agency |
| Subjects | |
| Online Access | Get full text |
| ISSN | 0918-6158 1347-5215 |
| DOI | 10.1248/bpb.17.146 |
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| Abstract | The antioxidative activity of theaflavins (TFs) and thearubigin (TR) purified from the infusion of black tea leaves was examined using the tert-butyl hydroperoxide-induced lipid peroxidation of rat liver homogenates.The concentrations which produced 50% inhibition of lipid peroxidation (IC50) by theaflavin (TF), theaflavin monogallate-A (TFM-A), and TR were 4.88×10-4, 4.09×10-4, and 4.95×10-4% (w/v), respectively. The antioxidative activity of these compounds was higher than that of glutathione, L(+)-ascorbic acid, dl-α-tocopherol, butylated hydroxytoluene, butyl hydroxyanisole, etc., but was lower than the activity of (-)-epicatechin gallate, (-)-epigallocatechin, and (-)-epigallocatechin gallate. As to the IC50 in molarity, the antioxidative activity of TFM-A was the second highest among all the samples used in this study.The antioxidative activity of lyophilized tea infusions was compared. The activity of black tea was about as potent as that of green tea.These results suggest that black tea infusion containing TFs and TR could inhibit lipid peroxidation in biological conditions in the same way as green tea infusion containing epicatechins. |
|---|---|
| AbstractList | The antioxidative activity of theaflavins (TFs) and thearubigin (TR) purified from the infusion of black tea leaves was examined using the tert-butyl hydroperoxide-induced lipid peroxidation of rat liver homogenates.The concentrations which produced 50% inhibition of lipid peroxidation (IC50) by theaflavin (TF), theaflavin monogallate-A (TFM-A), and TR were 4.88×10-4, 4.09×10-4, and 4.95×10-4% (w/v), respectively. The antioxidative activity of these compounds was higher than that of glutathione, L(+)-ascorbic acid, dl-α-tocopherol, butylated hydroxytoluene, butyl hydroxyanisole, etc., but was lower than the activity of (-)-epicatechin gallate, (-)-epigallocatechin, and (-)-epigallocatechin gallate. As to the IC50 in molarity, the antioxidative activity of TFM-A was the second highest among all the samples used in this study.The antioxidative activity of lyophilized tea infusions was compared. The activity of black tea was about as potent as that of green tea.These results suggest that black tea infusion containing TFs and TR could inhibit lipid peroxidation in biological conditions in the same way as green tea infusion containing epicatechins. The antioxidative activity of theaflavins (TFs) and thearubigin (TR) purified from the infusion of black tea leaves was examined using the tert-butyl hydroperoxide-induced lipid peroxidation of rat liver homogenates. The concentrations which produced 50% inhibition of lipid peroxidation (IC50) by theaflavin (TF), theaflavin monogallate-A (TFM-A), and TR were 4.88 x 10(-4), 4.09 x 10(-4), and 4.95 x 10(-4%) (w/v), respectively. The anti-oxidative activity of these compounds was higher than that of glutathione, L(+)-ascorbic acid, dl-alpha-tocopherol, butylated hydroxytoluene, butyl hydroxyanisole, etc., but was lower than the activity of (-)-epicatechin gallate, (-)-epigallocatechin, and (-)-epigallocatechin gallate. As to the IC50 in molarity, the antioxidative activity of TFM-A was the second highest among all the samples used in this study. The antioxidative activity of lyophilized tea infusions was compared. The activity of black tea was about as potent as that of green tea. These results suggest that black tea infusion containing TFs and TR could inhibit lipid peroxidation in biological conditions in the same way as green tea infusion containing epicatechins. The antioxidative activity of theaflavins (TFs) and thearubigin (TR) purified from the infusion of black tea leaves was examined using the tert-butyl hydroperoxide-induced lipid peroxidation of rat liver homogenates. The concentrations which produced 50% inhibition of lipid peroxidation (IC50) by theaflavin (TF), theaflavin monogallate-A (TFM-A), and TR were 4.88 x 10(-4), 4.09 x 10(-4), and 4.95 x 10(-4%) (w/v), respectively. The anti-oxidative activity of these compounds was higher than that of glutathione, L(+)-ascorbic acid, dl-alpha-tocopherol, butylated hydroxytoluene, butyl hydroxyanisole, etc., but was lower than the activity of (-)-epicatechin gallate, (-)-epigallocatechin, and (-)-epigallocatechin gallate. As to the IC50 in molarity, the antioxidative activity of TFM-A was the second highest among all the samples used in this study. The antioxidative activity of lyophilized tea infusions was compared. The activity of black tea was about as potent as that of green tea. These results suggest that black tea infusion containing TFs and TR could inhibit lipid peroxidation in biological conditions in the same way as green tea infusion containing epicatechins.The antioxidative activity of theaflavins (TFs) and thearubigin (TR) purified from the infusion of black tea leaves was examined using the tert-butyl hydroperoxide-induced lipid peroxidation of rat liver homogenates. The concentrations which produced 50% inhibition of lipid peroxidation (IC50) by theaflavin (TF), theaflavin monogallate-A (TFM-A), and TR were 4.88 x 10(-4), 4.09 x 10(-4), and 4.95 x 10(-4%) (w/v), respectively. The anti-oxidative activity of these compounds was higher than that of glutathione, L(+)-ascorbic acid, dl-alpha-tocopherol, butylated hydroxytoluene, butyl hydroxyanisole, etc., but was lower than the activity of (-)-epicatechin gallate, (-)-epigallocatechin, and (-)-epigallocatechin gallate. As to the IC50 in molarity, the antioxidative activity of TFM-A was the second highest among all the samples used in this study. The antioxidative activity of lyophilized tea infusions was compared. The activity of black tea was about as potent as that of green tea. These results suggest that black tea infusion containing TFs and TR could inhibit lipid peroxidation in biological conditions in the same way as green tea infusion containing epicatechins. |
| Author | HARA, Yukihiko TOMITA, Isao SANO, Mitsuaki YOSHINO, Kyoji |
| Author_xml | – sequence: 1 fullname: SANO, Mitsuaki – sequence: 1 fullname: HARA, Yukihiko – sequence: 1 fullname: YOSHINO, Kyoji – sequence: 1 fullname: TOMITA, Isao |
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| Keywords | Rat Digestive system Pharmacognosy Liver Rodentia Lipids Antioxidant In vitro Biological activity Vertebrata Mammalia Animal Plant origin Theaflavin Tea extract Peroxidation |
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| References_xml | – reference: 12) E.A.H. Roberts, J. Sci. Food Agric., 8, 72 (1957). – reference: 13) E.A.H. Roberts, M. Myers, J. Sci. Food Agric., 10, 176 (1959). – reference: 9) M. Namiki, T. Osawa, Basic Life Science, 39, 131 (1986). – reference: 15) D.L. Whitehead, C.M. Temple, J. Sci. Food Agric., 58, 149 (1992). – reference: 6) H. Tanizawa, S. Toda, Y. Sazuka, T. Taniyama, T. Hayashi, S. Arichi, Y. Takino, Chem. Pharm. Bull., 32, 2011 (1984). – reference: 2) K. Yoshino, Y. Hara, Numazu College of Technology Research Annual, 27, 87 (1992). – reference: 16) F. Masugi, T. Nakamura, Vitamins, 51, 21 (1977). – reference: 7) A. Valenzuela, R. Guerra, L.A. Videla, Planta Med., 48, 438 (1986). – reference: 17) M. Sano, M. Abe, K. Yoshino, T. Matsuura, T. Sekino, S. Saito, I. Tomita, Chem. Pharm. Bull., 34, 174 (1986). – reference: 18) Y. Fujita, K. Komagoe, Y. Sasaki, I. Uehara, T. Okuda, T. Yoshida, Yakugaku Zasshi, 107, 17 (1987). – reference: 3) W. Bors, M. Saran, Free Radic. Res. Commun., 2, 289 (1987). – reference: 4) I. Morel, G. Lescoat, P. Cogrel, O. Sergent, N. Pasdeloup, P. Brissot, P. Cillard, J. Cillard, Biochem. Pharmacol., 45, 13 (1993). – reference: 11) M. Sano, Y. Takahashi, C. Komatsu, Y. Nakamura, K. Shimoi, I. Tomita, I. Oguni, K. Nasu, K. Obata, H. Konomoto, T. Masuzawa, N. Suzuki, "Proceedings of the International Symposium on Tea Science (ISTS)," ed. by the Organizing Committee of ISTS, Kurofune Printing Co., Ltd., Shizuoka, 1991, pp. 304-308. – reference: 10) M. Sano, Seiyaku Kojo, 7, 780 (1987). – reference: 5) T. Matsuzaki, Y. Hara, Nippon Nogei Kagaku Kaishi, 59, 129 (1985). – reference: 8) T. Okuda, Y. Kimura, T. Yoshida, T. Hatano, H. Okuda, S. Arichi, Chem. Pharm. Bull., 31, 1625 (1983). – reference: 14) L.A. Videla, M.I. Villena, G. Donoso, C. Giulivi, A. Boveris, Biochem. J., 223, 879 (1984). – reference: 19) P.D. Collier, T. Bryce, R. Mallows, P.E. Thomas, Tetrahedron, 29, 125 (1973). – reference: 1) S. Terada, Y. Maeda, T. Masui, Y. Suzuki, K. Ina, Nippon Shokuhin Kogyo Gakkaishi, 34, 20 (1987). |
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| SubjectTerms | Animals antioxidant Antioxidants - pharmacology Biflavonoids Biological and medical sciences Catechin - analogs & derivatives Catechin - pharmacology Chromatography, High Pressure Liquid Dose-Response Relationship, Drug General pharmacology In Vitro Techniques lipid peroxidation Lipid Peroxidation - drug effects Liver - drug effects Liver - metabolism Male Medical sciences Peroxides - pharmacology Pharmacognosy. Homeopathy. Health food Pharmacology. Drug treatments Phenols - pharmacology Plant Proteins - pharmacology Polyphenols rat liver Rats Rats, Wistar Reactive Oxygen Species Tea tea polyphenol tert-Butylhydroperoxide theaflavin thearubigin |
| Title | Antioxidative Effects of Black Tea Theaflavins and Thearubigin on Lipid Peroxidation of Rat Liver Homogenates Induced by tert-Butyl Hydroperoxide |
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| ispartofPNX | Biological and Pharmaceutical Bulletin, 1994/01/15, Vol.17(1), pp.146-149 |
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