Showing details for content value of Gallic acid in Tea [Green], infusion Food Composition
Calculated Mean Content Values
| Units | Average | Min | Max | Standard Deviation |
|---|---|---|---|---|
| mg/100 ml | 0.49 | 4.00e-03 | 3.33 | 0.89 |
| mol/100 ml | 2.90e-06 | 2.35e-08 | 1.96e-05 | 5.25e-06 |
Values calculated by aggregating data from 44 different samples from 7 unique publications.
Aglycone Mean Content Values
| Aglycone | Units | Average | Min | Max | Standard Deviation |
|---|---|---|---|---|---|
| Gallic acid | mg/100 ml | 0.49 | 4.00e-03 | 3.33 | 0.89 |
| mol/100 ml | 2.90e-06 | 2.35e-08 | 1.96e-05 | 5.25e-06 |
Original Content Values Used to Produce Means
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 |
|---|---|---|---|
| 0.05 mg/100 ml | Chinese green commercial tea - Fu-Chien Mao-Feng | no | 1 |
| 0.04 mg/100 ml | Chinese green commercial tea - He-Nan Hsin-Yang Mao-Chien | no | 1 |
| 0.05 mg/100 ml | Chinese green commercial tea - Hu-Pei He-Feng Fu-Hsi | no | 1 |
| 0.06 mg/100 ml | Chinese green commercial tea - Chue-Chiag longjing | no | 1 |
| 0.04 mg/100 ml | Chinese green commercial tea - Hu-Pei San-Hsia Mao-Chien | no | 1 |
| 0.03 mg/100 ml | Chinese green commercial tea - Shan-Hsi Tsu-Yang | no | 1 |
| 0.04 mg/100 ml | Chinese green commercial tea - He-Nan Hsin-Yang Yun-Woo | no | 1 |
| 0.06 mg/100 ml | Chinese green commercial tea - Che-Chiang Hang-Chou longjing | no | 1 |
| 0.06 mg/100 ml | Chinese green commercial tea - An-Hui Huang-Shan Yun-Woo | no | 1 |
| 0.06 mg/100 ml | Chinese green commercial tea - An-Hui Pi-Luo-Chun | no | 1 |
| 0.06 mg/100 ml | Chinese green commercial tea - Bei-Jing Mo-Li-Hua | no | 1 |
| 0.04 mg/100 ml | Chinese green commercial tea - Fu-Chien Hu-Chiu Mo-Li-Hua | no | 1 |
| 0.05 mg/100 ml | Chinese green commercial tea - Ssu-Chuan Cheng-Tou Mo-Li-Hua | no | 1 |
| 0.07 mg/100 ml | Chinese green commercial tea - Ssu-Chuan Yung-Chuan Mo-Li-Hua | no | 1 |
| 4.00e-03 mg/100 ml | Chinese green commercial tea - San-Shya, Taipei longjing | no | 1 |
| 0.12 mg/100 ml | Japanese green commercial tea - Osaka-Fu | no | 1 |
| 0.01 mg/100 ml | Japanese green commercial tea - Aichi-Ken | no | 1 |
| 0.02 mg/100 ml | Japanese green commercial tea - Kyoto Mat-Cha | no | 1 |
| 0.01 mg/100 ml | Japanese green commercial tea - Shizuoka 1 | no | 1 |
| 0.01 mg/100 ml | Japanese green commercial tea - Shizuoka 2 | no | 1 |
| 0.01 mg/100 ml | Japanese green commercial tea - Kyoto Sen-Cha | no | 1 |
| 0.02 mg/100 ml | Japanese green commercial tea - Kyoto | no | 1 |
| 0.01 mg/100 ml | Japanese green commercial tea - Fukuoka-Ken | no | 1 |
| 8.00e-03 mg/100 ml | Japanese green commercial tea - Tokyo decocted 1 | no | 1 |
| 0.01 mg/100 ml | Japanese green commercial tea - Tokyo decocted 2 | no | 1 |
| 0.01 mg/100 ml | Japanese green commercial tea - Tokyo decocted 3 | no | 1 |
| 0.01 mg/100 ml | Japanese green commercial tea - Tokyo Yn-Loo | no | 1 |
| 0.01 mg/100 ml | Japanese green commercial tea - Tokyo Thu-Ya | no | 1 |
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 |
|---|---|---|---|
| 2.00 mg/100 ml | Green tea infusion, China, Leaf | no | 1 |
| 1.00 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 |
|---|---|---|---|
| 2.55 mg/100 ml | Green Tea infusion 4 (whole leaves) | no | 1 |
| 3.00 mg/100 ml | Green Tea infusion 5 (minced leaves) | 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 |
|---|---|---|---|
| 0.12 mg/100 ml | Green tea infusion, Chin-Shin-Dah-Pan | no | 1 |
| 0.50 mg/100 ml | Green tea infusion, TTE 12 | no | 1 |
| 0.62 mg/100 ml | Green tea infusion, Assam | no | 1 |
| 0.12 mg/100 ml | Green tea infusion, Wun-Yi | no | 1 |
| 0.50 mg/100 ml | Green tea infusion, Gan-Tzy (Longjing tea) | 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 |
|---|---|---|---|
| 0.18 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 |
|---|---|---|---|
| 0.88 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 |
|---|---|---|---|
| 0.78 mg/100 ml | Green tea infusion - Gunpowder | no | 1 |
| 1.65 mg/100 ml | Green tea infusion - Roasted green tea | no | 1 |
| 0.74 mg/100 ml | Green tea infusion - Sencha | no | 1 |
| 3.33 mg/100 ml | Green tea infusion - Keemun | no | 1 |
| 2.79 mg/100 ml | Green tea infusion - Sri Lanka | no | 1 |