Showing details for content value of (-)-Epicatechin 3-O-gallate in Tea [Green], infusion Food Composition
Calculated Mean Content Values
| Units | Average | Min | Max | Standard Deviation |
|---|---|---|---|---|
| mg/100 ml | 7.50 | 0.10 | 64.29 | 10.19 |
| mol/100 ml | 1.69e-05 | 2.26e-07 | 1.45e-04 | 2.30e-05 |
Values calculated by aggregating data from 77 different samples from 16 unique publications.
Aglycone Mean Content Values
| Aglycone | Units | Average | Min | Max | Standard Deviation |
|---|---|---|---|---|---|
| (-)-Epicatechin | mg/100 ml | 4.92 | 0.07 | 42.18 | 6.69 |
| mol/100 ml | 1.11e-05 | 1.48e-07 | 9.54e-05 | 1.51e-05 | |
| Gallic acid | mg/100 ml | 2.88 | 0.04 | 24.72 | 3.92 |
| mol/100 ml | 6.52e-06 | 8.69e-08 | 5.59e-05 | 8.86e-06 |
Original Content Values Used to Produce Means
Ding, M., Yang, H., Xiao, S. (1999) Rapid, direct determination of polyphenols in tea by reversed-phase column liquid chromatography. Journal of chromatography A 849:637-640 PubMed (10457459)
| Original Content Value | Original Food Description | Commercial Origin | # of Samples Analyzed |
|---|---|---|---|
| 25.22 mg/100 ml | Chinese Green Tea Yunnan | no | 1 |
| 14.89 mg/100 ml | Chinese Green Tea Guangdong | no | 1 |
| 7.89 mg/100 ml | Chinese Green Tea Jinghua | no | 1 |
Lin, J.K.;Lin, C.L.;Liang, Y.C.;Lin-Shiau, S.Y.;Juan, I.M. (1998) Survey of catechins, gallic acid, and methylxanthines in green, oolong, pu-erh and black teas. Journal of Agricultural and Food Chemistry 46:3635-3642
| Original Content Value | Original Food Description | Commercial Origin | # of Samples Analyzed |
|---|---|---|---|
| 0.41 mg/100 ml | Chinese green commercial tea - Fu-Chien Mao-Feng | no | 1 |
| 0.33 mg/100 ml | Chinese green commercial tea - He-Nan Hsin-Yang Mao-Chien | no | 1 |
| 0.31 mg/100 ml | Chinese green commercial tea - Hu-Pei He-Feng Fu-Hsi | no | 1 |
| 1.70 mg/100 ml | Chinese green commercial tea - Chue-Chiag longjing | no | 1 |
| 0.26 mg/100 ml | Chinese green commercial tea - Hu-Pei San-Hsia Mao-Chien | no | 1 |
| 0.25 mg/100 ml | Chinese green commercial tea - Shan-Hsi Tsu-Yang | no | 1 |
| 0.27 mg/100 ml | Chinese green commercial tea - He-Nan Hsin-Yang Yun-Woo | no | 1 |
| 0.46 mg/100 ml | Chinese green commercial tea - Che-Chiang Hang-Chou longjing | no | 1 |
| 0.22 mg/100 ml | Chinese green commercial tea - An-Hui Huang-Shan Yun-Woo | no | 1 |
| 0.29 mg/100 ml | Chinese green commercial tea - An-Hui Pi-Luo-Chun | no | 1 |
| 0.36 mg/100 ml | Chinese green commercial tea - Bei-Jing Mo-Li-Hua | no | 1 |
| 0.22 mg/100 ml | Chinese green commercial tea - Fu-Chien Hu-Chiu Mo-Li-Hua | no | 1 |
| 0.21 mg/100 ml | Chinese green commercial tea - Ssu-Chuan Cheng-Tou Mo-Li-Hua | no | 1 |
| 0.33 mg/100 ml | Chinese green commercial tea - Ssu-Chuan Yung-Chuan Mo-Li-Hua | no | 1 |
| 0.28 mg/100 ml | Chinese green commercial tea - San-Shya, Taipei longjing | no | 1 |
| 0.10 mg/100 ml | Japanese green commercial tea - Osaka-Fu | no | 1 |
| 0.12 mg/100 ml | Japanese green commercial tea - Aichi-Ken | no | 1 |
| 0.25 mg/100 ml | Japanese green commercial tea - Kyoto Mat-Cha | no | 1 |
| 0.25 mg/100 ml | Japanese green commercial tea - Shizuoka 1 | no | 1 |
| 0.23 mg/100 ml | Japanese green commercial tea - Shizuoka 2 | no | 1 |
| 0.24 mg/100 ml | Japanese green commercial tea - Kyoto Sen-Cha | no | 1 |
| 0.13 mg/100 ml | Japanese green commercial tea - Kyoto | no | 1 |
| 0.17 mg/100 ml | Japanese green commercial tea - Fukuoka-Ken | no | 1 |
| 0.18 mg/100 ml | Japanese green commercial tea - Tokyo decocted 1 | no | 1 |
| 0.25 mg/100 ml | Japanese green commercial tea - Tokyo decocted 2 | no | 1 |
| 0.20 mg/100 ml | Japanese green commercial tea - Tokyo decocted 3 | no | 1 |
| 0.19 mg/100 ml | Japanese green commercial tea - Tokyo Yn-Loo | no | 1 |
| 16.10 mg/100 ml | Japanese green commercial tea - Tokyo Thu-Ya | no | 1 |
Khokhar, S.; Magnusdottir, S.G.M. (2002) Total phenol, catechin, and caffeine contents of teas commonly consumed in the United Kingdom. Journal of Agricultural and Food Chemistry 50:565-570 PubMed (11804530)
| Original Content Value | Original Food Description | Commercial Origin | # of Samples Analyzed |
|---|---|---|---|
| 8.50 mg/100 ml | Green tea Chun mee (China) | no | 1 |
| 3.70 mg/100 ml | Green tea Bandia (Japan) | no | 1 |
| 4.40 mg/100 ml | Chinese Green Tea | no | 1 |
| 3.40 mg/100 ml | Japanese Green Tea 1 | no | 1 |
| 6.20 mg/100 ml | Green tea Osaka-Fu | no | 1 |
| 3.70 mg/100 ml | Japanese Green Tea 2 | no | 1 |
| 5.60 mg/100 ml | Indian Green Tea | no | 1 |
Bronner, W.E.; Beecher, G.R. (1998) Method for determining the content of catechins in tea infusions by high-performance liquid chromatography. Journal of Chromatography A 805:137-142 PubMed (20109129)
| Original Content Value | Original Food Description | Commercial Origin | # of Samples Analyzed |
|---|---|---|---|
| 3.00 mg/100 ml | Green tea infusion - 3 min | no | 2 |
| 5.00 mg/100 ml | Green tea infusion - 20 min | no | 2 |
| 3.00 mg/100 ml | Jasmine tea infusion - 3 min | no | 2 |
| 5.00 mg/100 ml | Jasmine tea infusion - 20 min | no | 2 |
Lee, B.-L.; Ong, C.-N. (2000) Comparative analysis of tea catechins ans theaflavins by high-performance liquid chromatography and capillary electrophoresis. Journal of Chromatography A 881:439-447
| Original Content Value | Original Food Description | Commercial Origin | # of Samples Analyzed |
|---|---|---|---|
| 5.34 mg/100 ml | Japanese green tea | no | 1 |
| 9.97 mg/100 ml | Long-jing | no | 1 |
| 12.66 mg/100 ml | Jasmine | no | 1 |
Pascual-Teresa de, S.; Santos-Buelga, C.; Rivas-Gonzalo, J.C. (2000) Quantitative analysis of flavan-3-ols in Spanish foodstuffs and beverages. Journal of Agricultural and Food Chemistry 48:5331-5337 PubMed (11087482)
| Original Content Value | Original Food Description | Commercial Origin | # of Samples Analyzed |
|---|---|---|---|
| 8.59 mg/100 ml | Green tea infusion | no | 3 |
Kuhr, S.; Engelhardt, U.H. (1991) Determination of flavanols, theogallin. Zeitschrift fuer Lebensmittel Untersuchung und Forschung 192:526-529 PubMed (8717094)
| Original Content Value | Original Food Description | Commercial Origin | # of Samples Analyzed |
|---|---|---|---|
| 14.69 mg/100 ml | Green tea infusion, China, Leaf | no | 1 |
| 14.02 mg/100 ml | Green tea infusion, Taiwan, Leaf | no | 1 |
Pelillo, M.; Biguzzi, B.; Bendini, A.; Gallina Toschi, T.; Vanzini, M.; Lercker, G. (2002) Preliminary investigation into development of HPLC with UV and MS-electrospray detection for the analysis of tea catechins. Food Chemistry 78:369-374
| Original Content Value | Original Food Description | Commercial Origin | # of Samples Analyzed |
|---|---|---|---|
| 15.30 mg/100 ml | Green Tea infusion 4 (whole leaves) | no | 1 |
| 21.00 mg/100 ml | Green Tea infusion 5 (minced leaves) | no | 1 |
Long, H.; Zhu, Y.; Huang, T.; Coury, L.A.; Kissinger, P.T. (2001) Identification and determination of polyphenols in tea by liquid chromatography with multichannel electrochemical detection. Journal of Liquid Chromatography and Related Technologies 24:1105-1114
| Original Content Value | Original Food Description | Commercial Origin | # of Samples Analyzed |
|---|---|---|---|
| 5.75 mg/100 ml | Green tea infusion, Luan Guapian, China | no | 1 |
| 8.95 mg/100 ml | Green tea infusion, Longjin, China | no | 1 |
| 8.65 mg/100 ml | Green tea infusion, Maofeng, China | no | 1 |
| 5.30 mg/100 ml | Green tea infusion, Suntory,Japan | no | 1 |
| 5.55 mg/100 ml | Green tea infusion, Dynasty, Japan | no | 1 |
Zhang, A.; Chan, P.T.; Luk, Y.S.; Ho, W.K.K.; Chen, Z.-Y. (1997) Inhibitory effect of jasmine green tea epicatechin isomers on LDL-oxidation. Journal of Nutritional biochemistry 8:334-340
| Original Content Value | Original Food Description | Commercial Origin | # of Samples Analyzed |
|---|---|---|---|
| 64.29 mg/100 ml | Jasmine green tea infusion | no | 1 |
Lin Y., Juan I., Chen Y., Liang Y., Lin J. (1996) Composition of polyphenols in fresh tea leaves and associations of their oxygen-radical-absorbing capacity with antiproliferative actions in fibroblast cells. Journal of Agricultural and Food Chemistry 44:1387-1394
| Original Content Value | Original Food Description | Commercial Origin | # of Samples Analyzed |
|---|---|---|---|
| 6.25 mg/100 ml | Green tea infusion, Chin-Shin-Dah-Pan | no | 1 |
| 17.50 mg/100 ml | Green tea infusion, TTE 12 | no | 1 |
| 20.00 mg/100 ml | Green tea infusion, Assam | no | 1 |
| 11.25 mg/100 ml | Green tea infusion, Wun-Yi | no | 1 |
| 35.00 mg/100 ml | Green tea infusion, Gan-Tzy (Longjing tea) | no | 1 |
Price W.E., Spitzer J.C. (1993) Variations in the amounts of individual flavonols in a range of green teas. Food Chemistry 47:271-276
| Original Content Value | Original Food Description | Commercial Origin | # of Samples Analyzed |
|---|---|---|---|
| 14.56 mg/100 ml | Loong Ching green tea | no | 1 |
| 8.96 mg/100 ml | Green tea - Grand Tea Co. | no | 1 |
| 12.32 mg/100 ml | Special Chunmee | no | 1 |
| 9.92 mg/100 ml | Jasmine tea - Fujian | no | 1 |
| 11.68 mg/100 ml | Sen Cha Uji Tsuyu | no | 1 |
| 13.12 mg/100 ml | Sen Cha Uji Tsuyu | no | 1 |
| 8.00 mg/100 ml | Lung Ching China tea | no | 1 |
| 11.84 mg/100 ml | Jasmine tea Bulk | no | 1 |
Begona Barroso, M.; Werken van de, G. (1999) Determination of green and black tea composition by capillary electrophoresis. Journal of High Resolution Chromatography 22:225-230 PubMed (19266552)
| Original Content Value | Original Food Description | Commercial Origin | # of Samples Analyzed |
|---|---|---|---|
| 10.70 mg/100 ml | Green tea infusion | no | 1 |
Stewart A.J., Mullen W., Crozier A. (2005) On-line high-performance liquid chromatography analysis of the antioxidant activity of phenolic compounds in green and black tea. Molecular Nutrition and Food Research 49:52-60 PubMed (15602765)
| Original Content Value | Original Food Description | Commercial Origin | # of Samples Analyzed |
|---|---|---|---|
| 17.19 mg/100 ml | Green tea infusion | no | 1 |
Kilmartin P.A., Chyong F.H. (2003) Characterisation of polyphenols in green, oolong, and black teas, and in coffee, using cyclic voltammetry. Food Chemistry 82:501-512
| Original Content Value | Original Food Description | Commercial Origin | # of Samples Analyzed |
|---|---|---|---|
| 38.50 mg/100 ml | Green tea - Infusion - 100°C | no | 1 |
Wang H., Helliwell K., You X. (2000) Isocratic elution system for the determination of catechins, caffeine and gallic acid in green tea using HPLC. Food Chemistry 68:115-121
| Original Content Value | Original Food Description | Commercial Origin | # of Samples Analyzed |
|---|---|---|---|
| 4.26 mg/100 ml | Green tea infusion - Gunpowder | no | 1 |
| 5.03 mg/100 ml | Green tea infusion - Roasted green tea | no | 1 |
| 4.92 mg/100 ml | Green tea infusion - Sencha | no | 1 |
| 1.19 mg/100 ml | Green tea infusion - Keemun | no | 1 |
| 2.92 mg/100 ml | Green tea infusion - Sri Lanka | no | 1 |