表儿茶素没食子酸酯
表儿茶素没食子酸酯((-)-epicatechin gallate)
CAS: 1257-08-5
化学式: C22H18O10
| 中文名 | 表儿茶素没食子酸酯 |
| 英文名 | (-)-epicatechin gallate |
| 别名 | 表儿茶来没食子酸酯 表儿茶素没食子酸酯 (-)-表儿茶素没食子酸酯 ECG,表儿茶精没食子酸酯, 表儿茶素没食子酸酯(标准品) (-)-表儿茶素没食子酸酯,来源于绿茶 --表儿茶素没食子酸酯,表儿茶来没食子酸酯 表儿茶素没食子酸酯(ECG,表儿茶精没食子酸酯,(-)-表儿茶素没食子酸酯,表儿茶来没食子酸酯) |
| 英文别名 | ECG epicatechol,gallate l-epicatechingallate (-)-epicatechin gallate EPICATECHIN GALLATE, (-)-(P) 8-methoxy-12a-methyl-3,4,4a,4b,5,6,10b,11,12,12a-decahydrochrysen-2(1h)-one 2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-3,4-dihydro-2H-chromen-3-yl 3,4,5-trihydroxybenzoate (2R,3R)-2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-3,4-dihydro-2H-chromen-3-yl 3,4,5-trihydroxybenzoate (2R,3S)-2-(3,4-dihydroxyphenyl)-3,7-dihydroxy-3,4-dihydro-2H-chromen-5-yl 3,4,5-trihydroxybenzoate |
| CAS | 1257-08-5 |
| EINECS | 603-088-4 |
| 化学式 | C22H18O10 |
| 分子量 | 442.37 |
| InChI | InChI=1/C22H18O10/c23-11-6-18-12(8-17(28)21(31-18)9-1-2-13(24)14(25)3-9)19(7-11)32-22(30)10-4-15(26)20(29)16(27)5-10/h1-7,17,21,23-29H,8H2/t17-,21+/m0/s1 |
| InChIKey | LSHVYAFMTMFKBA-TZIWHRDSSA-N |
| 密度 | 1.80±0.1 g/cm3(Predicted) |
| 熔点 | 257-258°C |
| 沸点 | 861.7±65.0 °C(Predicted) |
| 比旋光度 | -182～-194°(D/20℃)(c=0.2,CH3OH) |
| 闪点 | 325.2°C |
| 水溶性 | Soluble in water, acetone, DMSO, methanol. |
| 蒸汽压 | 0mmHg at 25°C |
| 溶解度 | 丙酮 (微溶) 、DMSO (微溶) 、甲醇 (微溶) |
| 折射率 | 1.769 |
| 酸度系数 | 7.75±0.25(Predicted) |
| 存储条件 | 2-8°C |
| 稳定性 | 光敏 |
| 敏感性 | Sensitive to heat |
| 外观 | 固体 |
| 颜色 | White to Off-White |
| 物化性质 | 来源于本品为绿茶分离。 |
| MDL号 | MFCD00075936 |
| 安全术语 | 24/25 - 避免与皮肤和眼睛接触。 |
| WGK Germany | 3 |
| RTECS | DH9030000 |
| FLUKA BRAND F CODES | 10-23 |
| 海关编号 | 29329990 |
| 参考资料 展开查看 | 1. 阮鸣. HPLC法同时测定六安瓜片中七种活性成分的含量[J]. 南京晓庄学院学报 2016(6):37-42. 2. 王婷婷 蔡自建 蒲婉欣 等. 四川绿茶感官品质与主要滋味贡献成分分析[J]. 食品研究与开发 2018 39(24):162-167. 3. 赵文平, 贾龙刚, 路福平,等. 基于β-内酰胺酶构建大肠杆菌体内Aβ42聚集抑制剂筛选体系[J]. 食品与发酵工业, 2019, 45:17-24. 4. 陈斌辉, 吕圭源, 金伟锋,等. 基于正交设计和BP神经网络-遗传算法多指标综合优化茶叶提取工艺[J]. 中国现代应用药学, 2019, 036(010):1223-1228. 5. 黄贝, 李龙宝, 吴信洁,等. 油茶花青素还原酶基因克隆和体外功能研究[J]. 茶业通报, 2018, 040(002):71-76. 6. 张天晓, 王祥荣. 真丝织物上茶多酚的高效液相色谱法检测[J]. 现代丝绸科学与技术, 2020(2):4-7. 7. 郭颖, 黄峻榕, 陈琦,等. 茶叶中儿茶素类测定方法的优化[J]. 食品科学, 2016, 37(06):137-141. 8. 胡立文, 周晓晴, 张彬,等. 茶叶籽油中儿茶素类和咖啡因含量测定[J]. 南昌大学学报(理科版), 2018, 42(002):134-138,146. 9. 周晓晴, 胡立文, 罗琦,等. 茶叶籽油中茶多酚和儿茶素的测定[J]. 食品工业科技, 2019. 10. 李辉, 张静, 李超,等. 贺兰山东麓不同陈酿年份赤霞珠干红葡萄酒中酚类物质对涩感质量的影响[J]. 食品与发酵工业, 2018, 44(10):42-48. 11. 魏琳,卢凤美,邵宛芳,袁唯.酸茶发酵过程中感官品质及主要成分变化分析[J].食品研究与开发,2019,40(14):69-74. 12. 乔小燕, 李波, 何梓卿,等. 黄化英红九号红茶体外抗氧化活性分析[J]. 农产品质量与安全, 2018, 000(005):85-90. 13. 左丹, 刘冬, 李仕琪, et al. 黄山毛峰茶多酚提取物对肝药酶Cyp3a11的调控作用[J]. 食品科学, 2018, 39(21):196-202. 14. 乔小燕, 黄秀新, 黄国资,等. "二炒"温度对传统客家炒青绿茶品质特征的影响[J]. 广东农业科学, 2015, 042(001):96-99. 15. 梅双, 乔小燕, 陈维,等. 半连续化生产线和传统单机加工客家炒青绿茶主要品质成分比较分析[J]. 广东农业科学, 2019(11). 16. 乔小燕, 李崇兴, 姜晓辉,等. 不同等级CTC红碎茶生化成分分析[J]. 食品工业科技, 2018, 039(010):83-89. 17. 乔小燕, 陈维, 马成英,等. 不同仓储地康砖茶生化成分比较分析[J]. 广东茶业, 2019(5):7-10. 18. 李波, 黄华林, 陈欣,等. 不同季节黄化英红九号红茶品质比较分析[J]. 山东农业科学, 2019. 19. 黄华林, 李波, 陈海强,等. 不同萎凋时间英红九号和黄化英红九号红茶品质比较[J]. 山西农业科学, 2019, 047(010):1742-1745. 20. 乔小燕, 饶幸霞, 黄国资,等. 传统客家绿茶在连续化生产线加工过程中主要品质成分的变化趋势研究[J]. 江西农业学报, 2015, 000(004):74-77. 21. 欧惠算,张灵枝,王维生.阿姆斯特丹散囊菌对六堡茶品质成分的影响研究[J].中国茶叶加工,2019(02):45-50. 22. 杜欢欢, 蔡艳妮, 江海,等. 超高效液相串联质谱同时测定茶叶中的8种有效物质[J]. 陕西理工大学学报(自然科学版), 2017(33):74-80. 23. 乔小燕, 黄华林, 李波,等. 广东客家茶树种质资源儿茶素特性分析[J]. 江西农业学报, 2019, v.31(01):30-33. 24. 王玮, 张纪伟, 赵一帆,等. 澜沧江流域部分茶区古茶树资源生化成分多样性的分析[J]. 分子植物育种, 2020(2). 25. 乔小燕, 黄国资, 王秋霜,等. 连续化生产线加工过程中客家炒青绿茶主要品质成分的化[J]. 广东农业科学, 2014, 041(024):91-94. 26. 萎凋方式对黄化英红九号红茶品质的影响 27. 蔡爽, 阮成江, 杜维,等. 高效液相色谱-串联质谱法同时测定沙棘中的11种黄酮类物质[J]. 分析科学学报, 2019, 035(003):311-316. 28. 汤晓 叶庄新 余伟 等. 南瓜酚类物质及抗氧化活性受烹饪方式的影响[J]. 食品科技 2016 041(005):223-228. 29. 汤晓, 倪翠阳, 王丽英,等. 煮制时间与二次煮制对紫娟普洱茶抗氧化性的影响[J]. 食品工业科技, 2015, 036(008):141-147. 30. 姜丽娜,李纪元,范正琪,童冉,莫润宏,李志辉,蒋昌杰.金花茶组植物花朵内多酚组分含量分析[J].林业科学研究,2020,33(04):117-126. 31. 乔小燕,操君喜,车劲,陈栋,刘仲华.基于滋味和香气成分结合化学计量法鉴别不同贮藏年份的康砖茶[J].现代食品科技,2020,36(09):260-269+299. 32. 范方媛,杨晓蕾,龚淑英,郭昊蔚,纵榜正,李春霖,钱虹,胡建平.基于浙江部分主栽品种的黄茶滋味特征及化学组分贡献研究[J].浙江大学学报(农业与生命科学版),2019,45(04):443-451. 33. 黄创盛,龚淑英,范方媛,钱虹,柳丽萍,陆文渊,沈云鹤.白叶茶树品种“中白1号”加工不同茶类适制性研究[J].茶叶,2019,45(02):69-74. 34. 张恒,郑俏然,何靖柳,韦婷,刘翔,章斌.藏茶玫瑰乌梅无糖复合饮料研制及功能性成分分析与抗氧化研究[J].食品科技,2021,46(01):46-53+61. 35. Liao, Yinyin, et al. "Effect of major tea insect attack on formation of quality-related nonvolatile specialized metabolites in tea (Camellia sinensis) leaves." Journal of agricultural and food chemistry 67.24 (2019): 6716-6724.https://doi.org/10.1021/acs.j 36. Li, Wenfeng, Kun Zhang, and Qiang Zhao. "Fructooligosaccharide enhanced absorption and anti-dyslipidemia capacity of tea flavonoids in high sucrose-fed mice." International journal of food sciences and nutrition 70.3 (2019): 311-322.https://doi.org/10.1080 37. Fangyuan Gao, Zihua Xu, Weizhong Wang, Guocai Lu, Yvan Vander Heyden, Tingting Zhou, Guorong Fan, A comprehensive strategy using chromatographic profiles combined with chemometric methods: Application to quality control of Polygonum cuspidatum Sieb. et Zuc 38. Xiang, X., Xiang, Y., Jin, S., Wang, Z., Xu, Y., Su, C., Shi, Q., Chen, C., Yu, Q. and Song, C. (2020), The hypoglycemic effect of extract/fractions from Fuzhuan Brick-Tea in streptozotocin-induced diabetic mice and their active components characterized by 39. Ge, Zhenzhen, et al. "Comparison of the inhibition on cellular 22-NBD-cholesterol accumulation and transportation of monomeric catechins and their corresponding A-type dimers in Caco-2 cell monolayers." Journal of Functional Foods 27 (2016): 343-351.https: 40. Qu, Fengfeng, et al. "Comparison of the Effects of Green and Black Tea Extracts on Na+/K+‐ATPase Activity in Intestine of Type 1 and Type 2 Diabetic Mice." Molecular nutrition & food research 63.17 (2019): 1801039.https://doi.org/10.1002/mnfr.201801039 41. Liu, Shuyuan, et al. "In vitro α-glucosidase inhibitory activity of isolated fractions from water extract of Qingzhuan dark tea." BMC complementary and alternative medicine 16.1 (2016): 1-8. 42. Hua, Jinjie, et al. "Influence of enzyme source and catechins on theaflavins formation during in vitro liquid-state fermentation." LWT 139 (2021): 110291.https://doi.org/10.1016/j.lwt.2020.110291 43. Liang Zhang, Jânio Sousa Santos, Thiago Mendanha Cruz, Mariza Boscacci Marques, Mariana Araújo Vieira do Carmo, Luciana Azevedo, Yijun Wang, Daniel Granato, Multivariate effects of Chinese keemun black tea grades (Camellia sinensis var. sinensis) on the ph 44. Ge, Zhenzhen, et al. "Comparison of the inhibition on cellular 22-NBD-cholesterol accumulation and transportation of monomeric catechins and their corresponding A-type dimers in Caco-2 cell monolayers." Journal of Functional Foods 27 (2016): 343-351.https: 45. Yu, Penghui, et al. "Distinct variation in taste quality of Congou black tea during a single spring season." Food science & nutrition 8.4 (2020): 1848-1856.https://doi.org/10.1002/fsn3.1467 46. Liu, Shuyuan, et al. "Effect of steeping temperature on antioxidant and inhibitory activities of green tea extracts against α-amylase, α-glucosidase and intestinal glucose uptake." Food chemistry 234 (2017): 168-173.https://doi.org/10.1016/j.foodchem.2017. 47. Liu, Shuyuan, et al. "Effect of steeping temperature on antioxidant and inhibitory activities of green tea extracts against α-amylase, α-glucosidase and intestinal glucose uptake." Food chemistry 234 (2017): 168-173.https://doi.org/10.1016/j.foodchem.2017. 48. Liu, Shuyuan, et al. "Effect of steeping temperature on antioxidant and inhibitory activities of green tea extracts against α-amylase, α-glucosidase and intestinal glucose uptake." Food chemistry 234 (2017): 168-173.https://doi.org/10.1016/j.foodchem.2017. 49. [IF=7.514] Shuyuan Liu et al."Effect of steeping temperature on antioxidant and inhibitory activities of green tea extracts against α-amylase, α-glucosidase and intestinal glucose uptake."Food Chem. 2017 Nov;234:168 50. [IF=7.514] Xuemei Guo et al."An emerging strategy for evaluating the grades of Keemun black tea by combinatory liquid chromatography-Orbitrap mass spectrometry-based untargeted metabolomics and inhibition effects on α-glucosidase and α-amylase."Food Chem. 2018 Apr;2 51. [IF=5.396] Bo Chen et al."Comparative analysis of fecal phenolic content between normal and obese rats after oral administration of tea polyphenols."Food Funct. 2018 Sep;9(9):4858-4864 52. [IF=5.396] Jiachan Zhang et al."Understanding the role of extracts from sea buckthorn seed residues in anti-melanogenesis properties on B16F10 melanoma cells."Food Funct. 2018 Oct;9(10):5402-5416 53. [IF=5.279] Jie Zhou et al."LC-MS-Based Metabolomics Reveals the Chemical Changes of Polyphenols during High-Temperature Roasting of Large-Leaf Yellow Tea."J Agr Food Chem. 2019;67(19):5405–5412 54. [IF=4.952] Fengfeng Qu et al."Effect of different drying methods on the sensory quality and chemical components of black tea."Lwt Food Sci Technol. 2019 Jan;99:112 55. [IF=4.759] Fangyuan Gao et al."A comprehensive strategy using chromatographic profiles combined with chemometric methods: Application to quality control of Polygonum cuspidatum Sieb. et Zucc."J Chromatogr A. 2016 Sep;1466:67 56. [IF=4.451] Zhenzhen Ge et al."Comparison of the inhibition on cellular 22-NBD-cholesterol accumulation and transportation of monomeric catechins and their corresponding A-type dimers in Caco-2 cell monolayers."J Funct Foods. 2016 Dec;27:343 57. [IF=4.098] Chunlin Li et al."Rapid and non-destructive discrimination of special-grade flat green tea using Near-infrared spectroscopy."Spectrochim Acta A. 2019 Jan;206:254 58. [IF=3.894] Lixia Liu et al."Protective effects of tea polyphenols on exhaustive exercise-induced fatigue, inflammation and tissue damage."Food Nutr Res. 2017;61(1):1333390 59. [IF=3.659] Liu Shuyuan et al."In vitro α-glucosidase inhibitory activity of isolated fractions from water extract of Qingzhuan dark tea."Bmc Complem Altern M. 2016 Dec;16(1):1-8 60. [IF=3.361] Yun Liu et al."Structural characteristics of (−)-epigallocatechin-3-gallate inhibiting amyloid Aβ42 aggregation and remodeling amyloid fibers."Rsc Adv. 2015 Jul;5(77):62402-62413 61. [IF=3.361] Ji Li et al."Efficient extraction of major catechins in Camellia sinensis leaves using green choline chloride-based deep eutectic solvents."Rsc Adv. 2015 Nov;5(114):93937-93944 62. [IF=3.06] Zeyi Ai et al."Effect of Stereochemical Configuration on the Transport and Metabolism of Catechins from Green Tea across Caco-2 Monolayers."Molecules. 2019 Jan;24(6):1185 63. [IF=7.514] Yinyin Liao et al."Visualized analysis of within-tissue spatial distribution of specialized metabolites in tea (Camellia sinensis) using desorption electrospray ionization imaging mass spectrometry."Food Chem. 2019 Sep;292:204 64. [IF=7.514] Mingchun Wen et al."Identification of 4-O-p-coumaroylquinic acid as astringent compound of Keemun black tea by efficient integrated approaches of mass spectrometry, turbidity analysis and sensory evaluation."Food Chem. 2022 Jan;368:130803 65. [IF=7.514] Piaopiao Long et al."Untargeted and targeted metabolomics reveal the chemical characteristic of pu-erh tea (Camellia assamica) during pile-fermentation."Food Chem. 2020 May;311:125895 66. [IF=7.514] Huijun Wang et al."Untargeted metabolomics coupled with chemometrics approach for Xinyang Maojian green tea with cultivar, elevation and processing variations."Food Chem. 2021 Aug;352:129359 67. [IF=6.953] Chao Jiang et al."Three flavanols delay starch digestion by inhibiting α-amylase and binding with starch."Int J Biol Macromol. 2021 Mar;172:503 68. [IF=6.475] Zhenming Yu et al."Transformation of catechins into theaflavins by upregulation of CsPPO3 in preharvest tea (Camellia sinensis) leaves exposed to shading treatment."Food Res Int. 2020 Mar;129:108842 69. [IF=6.475] Mingchun Wen et al."Quantitative changes in monosaccharides of Keemun black tea and qualitative analysis of theaflavins-glucose adducts during processing."Food Res Int. 2021 Oct;148:110588 70. [IF=6.475] Shuyuan Liu et al."Comparative studies on the physicochemical profile and potential hypoglycemic activity of different tea extracts: Effect on sucrase-isomaltase activity and glucose transport in Caco-2 cells."Food Res Int. 2021 Oct;148:110604 71. [IF=5.81] Mu Jianfei et al."Determination of Polyphenols in Ilex kudingcha and Insect Tea (Leaves Altered by Animals) by Ultra-high-performance Liquid Chromatography-Triple Quadrupole Mass Spectrometry (UHPLC-QqQ-MS) and Comparison of Their Anti-Aging Effects."Fro 72. [IF=5.396] Xin Song et al."Inhibitory mechanism of epicatechin gallate on tyrosinase: inhibitory interaction, conformational change and computational simulation."Food Funct. 2020 Jun;11(6):4892-4902 73. [IF=5.279] Zongde Jiang et al."Model Studies on the Reaction Products Formed at Roasting Temperatures from either Catechin or Tea Powder in the Presence of Glucose."J Agr Food Chem. 2021;69(38):11417–11426 74. [IF=5.279] Yinyin Liao et al."Effect of Major Tea Insect Attack on Formation of Quality-Related Nonvolatile Specialized Metabolites in Tea (Camellia sinensis) Leaves."J Agr Food Chem. 2019;67(24):6716–6724 75. [IF=5.279] Huan Zhang et al."Metabolite and Microbiome Profilings of Pickled Tea Elucidate the Role of Anaerobic Fermentation in Promoting High Levels of Gallic Acid Accumulation."J Agr Food Chem. 2020;68(47):13751–13759 76. [IF=5.279] Hui Li et al."Relationship between Secondary Metabolism and miRNA for Important Flavor Compounds in Different Tissues of Tea Plant (Camellia sinensis) As Revealed by Genome-Wide miRNA Analysis."J Agr Food Chem. 2021;69(6):2001–2012 77. [IF=4.952] Jia Xue et al."Contrasting microbiomes of raw and ripened Pu-erh tea associated with distinct chemical profiles."Lwt Food Sci Technol. 2020 Apr;124:109147 78. [IF=4.952] Jinjie Hua et al."Influence of enzyme source and catechins on theaflavins formation during in vitro liquid-state fermentation."Lwt Food Sci Technol. 2021 Mar;139:110291 79. [IF=4.952] Fengfeng Qu et al."The new insight into the influence of fermentation temperature on quality and bioactivities of black tea."Lwt Food Sci Technol. 2020 Jan;117:108646 80. [IF=4.879] Guopeng Wang et al."Utilizing the Combination of Binding Kinetics and Micro-Pharmacokinetics Link in Vitro α-Glucosidase Inhibition to in Vivo Target Occupancy."Biomolecules. 2019 Sep;9(9):493 81. [IF=4.694] Jia Liu et al."Exploring the Antioxidant Effects and Periodic Regulation of Cancer Cells by Polyphenols Produced by the Fermentation of Grape Skin by Lactobacillus plantarum KFY02."Biomolecules. 2019 Oct;9(10):575 82. [IF=4.653] Fengfeng Qu et al."Comparison of the Effects of Green and Black Tea Extracts on Na+/K+‐ATPase Activity in Intestine of Type 1 and Type 2 Diabetic Mice."Mol Nutr Food Res. 2019 Sep;63(17):1801039 83. [IF=4.451] Fangfang Yan et al."Comparison of the inhibitory effects of procyanidins with different structures and their digestion products against acrylamide-induced cytotoxicity in IPEC-J2 cells."J Funct Foods. 2020 Sep;72:104073 84. [IF=4.411] Lin Chen et al."Dehydroascorbic Acid Affects the Stability of Catechins by Forming Conjunctions."Molecules. 2020 Jan;25(18):4076 85. [IF=4.411] Haibo Hu et al."Comparative Research of Chemical Profiling in Different Parts of Fissistigma oldhamii by Ultra-High-Performance Liquid Chromatography Coupled with Hybrid Quadrupole-Orbitrap Mass Spectrometry."Molecules. 2021 Jan;26(4):960 86. [IF=4.379] Zhang Sifeng et al."Prediction of suitable brewing cuppages of Dahongpao tea based on chemical composition, liquor colour and sensory quality in different brewing."Sci Rep-Uk. 2020 Jan;10(1):1-11 87. [IF=4.379] Feng Lin et al."Chemical profile changes during pile fermentation of Qingzhuan tea affect inhibition of α-amylase and lipase."Sci Rep-Uk. 2020 Feb;10(1):1-10 88. [IF=4.35] Miao Zhu et al."Epicatechin Gallate as Xanthine Oxidase Inhibitor: Inhibitory Kinetics, Binding Characteristics, Synergistic Inhibition, and Action Mechanism."Foods. 2021 Sep;10(9):2191 89. [IF=4.35] Qian Ge et al."Effects of Simultaneous Co-Fermentation of Five Indigenous Non-Saccharomyces Strains with S. cerevisiae on Vidal Icewine Aroma Quality."Foods. 2021 Jul;10(7):1452 90. [IF=4.192] Qiangqiang Li et al."Bee Pollen Extracts Modulate Serum Metabolism in Lipopolysaccharide-Induced Acute Lung Injury Mice with Anti-Inflammatory Effects."J Agr Food Chem. 2019;67(28):7855–7868 91. [IF=4.098] Chunlin Li et al."Discrimination of white teas produced from fresh leaves with different maturity by near-infrared spectroscopy."Spectrochim Acta A. 2020 Feb;227:117697 92. [IF=3.833] Jin Li et al."Simultaneous determination of the pharmacokinetics of A-type EGCG and ECG dimers in mice plasma and its metabolites by UPLC-QTOF-MS."Int J Food Sci Nutr. 2020;71(2):211-220 93. [IF=3.361] Mengmeng Yuan et al."The interaction of dietary flavonoids with xanthine oxidase in vitro: molecular property-binding affinity relationship aspects."Rsc Adv. 2019 Apr;9(19):10781-10788 94. [IF=3.167] Xingliang Xiang et al."The hypoglycemic effect of extract/fractions from Fuzhuan Brick-Tea in streptozotocin-induced diabetic mice and their active components characterized by LC-QTOF-MS/MS."J Food Sci. 2020 Sep;85(9):2933-2942 95. [IF=3.119] Jia Liu et al."Grape skin fermentation by Lactobacillus fermentum CQPC04 has anti-oxidative effects on human embryonic kidney cells and apoptosis-promoting effects on human hepatoma cells."Rsc Adv. 2020 Jan;10(8):4607-4620 96. [IF=2.952] Ke Yang et al."Dendrobium officinale polysaccharides protected against ethanol-induced acute liver injury in vivo and in vitro via the TLR4/NF-κB signaling pathway."Cytokine. 2020 Jun;130:155058 97. [IF=2.896] Li Wang et al."Separation of epigallocatechin gallate and epicatechin gallate from tea polyphenols by macroporous resin and crystallization."Anal Methods-Uk. 2021 Feb;13(6):832-842 98. [IF=2.863] Penghui Yu et al."Distinct variation in taste quality of Congou black tea during a single spring season."Food Sci Nutr. 2020 Apr;8(4):1848-1856 99. [IF=2.863] Qiaoran Zheng et al."Optimizing synchronous extraction and antioxidant activity evaluation of polyphenols and polysaccharides from Ya'an Tibetan tea (Camellia sinensis)."Food Sci Nutr. 2020 Jan;8(1):489-499 100. [IF=2.72] Wenfeng Li et al."Citric acid-enhanced dissolution of polyphenols during soaking of different teas."J Food Biochem. 2019 Dec;43(12):e13046 101. [IF=2.45] Zhu Kai et al."Preventive Effect of Liupao Tea Polyphenols on HCl/Ethanol-Induced Gastric Injury in Mice."J Food Quality. 2020;2020:5462836 102. [IF=2.431] Wang Yanfeng et al."Effects of temperature and ultrasonic scaler on the infusion process of green tea leaves and catechins stability under ultrasonic vibration."J Food Meas Charact. 2021 Aug;15(4):3598-3607 103. [IF=2.19] Qiaoran Zheng et al."The effect of storage time on tea Polyphenols, catechin compounds, total flavones and the biological activity of Ya’an Tibetan tea (Camellia sinensis)."Journal Of Food Processing And Preservation. 2021 Oct 11 104. [IF=2.19] Sheng-xiang Yang et al."Extraction of flavonoids from Cyclocarya paliurus (Juglandaceae) leaves using ethanol/salt aqueous two-phase system coupled with ultrasonic."J Food Process Pres. 2020 Jun;44(6):e14469 105. [IF=0.986] Lingli Sun et al."Phytochemical Profiles and Bioactivities of Cake Tea Leaves Obtained From the Same Cultivar: A Comparative Analysis:."Nat Prod Commun. 2020;15(8): 106. [IF=4.411] Peng-Cheng Zheng et al.Untargeted Metabolomics Combined with Bioassay Reveals the Change in Critical Bioactive Compounds during the Processing of Qingzhuan Tea.Molecules. 2021 Jan;26(21):6718 107. [IF=4.411] Shuang Mei et al."The Physiology of Postharvest Tea (Camellia sinensis) Leaves, According to Metabolic Phenotypes and Gene Expression Analysis."Molecules. 2022 Jan;27(5):1708 108. [IF=7.514] Yuqing Cui et al."Identification of low-molecular-weight color contributors of black tea infusion by metabolomics analysis based on UV–visible spectroscopy and mass spectrometry."Food Chem. 2022 Aug;386:132788 109. [IF=6.475] Guoping Lai et al."Free, soluble conjugated and insoluble bonded phenolic acids in Keemun black tea: From UPLC-QQQ-MS/MS method development to chemical shifts monitoring during processing."Food Res Int. 2022 May;155:111041 110. [IF=3.463] Ping Wang et al."Systematic transcriptomic and metabolomic analysis of walnut (Juglans regia L.) fruit to trace variations in antioxidant activity during ripening."Sci Hortic-Amsterdam. 2022 Mar;295:110849 111. [IF=4.556] Yiyu Ren et al."Metabolomics, sensory evaluation, and enzymatic hydrolysis reveal the effect of storage on the critical astringency-active components of crude Pu-erh tea."J Food Compos Anal. 2022 Apr;107:104387 112. [IF=5.645] Huilan Yue et al."Hypoglycemic ingredients identification of Rheum tanguticum Maxim. ex Balf. by UHPLC-triple-TOF-MS/MS and interrelationships between ingredients content and glycosidase inhibitory activities."Ind Crop Prod. 2022 Apr;178:114595 113. [IF=6.576] Guowei Man et al."Profiling Phenolic Composition in Pomegranate Peel From Nine Selected Cultivars Using UHPLC-QTOF-MS and UPLC-QQQ-MS."Front Nutr. 2021; 8: 807447 114. [IF=7.514] Zisheng Han et al."LC-MS based metabolomics and sensory evaluation reveal the critical compounds of different grades of Huangshan Maofeng green tea."Food Chem. 2022 Apr;374:131796 115. [IF=5.396] Chunyin Qin et al."Comparison on the chemical composition, antioxidant, anti-inflammatory, α-amylase and α-glycosidase inhibitory activities of the supernatant and cream from black tea infusion."Food & Function. 2022 Apr;: 116. [IF=5.154] Erdong Yuan et al."Roles of Adinandra nitida (Theaceae) and camellianin A in HCl/ethanol-induced acute gastric ulcer in mice."Food Science and Human Wellness. 2022 Jul;11:1053 |
表儿茶素没食子酸酯 - 简介
表儿茶素没食子酸酯，也称为EGCG，是一种儿茶素类化合物。它是茶叶中主要的儿茶素成分之一，尤其丰富于绿茶中。以下是关于EGCG的性质、用途、制法和安全信息的介绍：
性质：
- 外观：EGCG为无色结晶性固体。
- 稳定性：在酸性条件下相对稳定，在碱性条件下易于降解。
- 溶解性：EGCG在水中溶解度较低，溶解性在酸性pH条件下较好。
用途：
制法：
EGCG通常是通过茶叶提取得到。具体制法包括茶叶提取物的制备、去除杂质和分离纯化。
安全信息：
一般来说，EGCG在适量使用下是安全的，不会对健康产生明显不良影响。高剂量EGCG摄入可能引发一些不良反应，特别是与肝脏毒性有关的问题。另外，儿童、孕妇和乳母应特别注意使用EGCG的剂量和安全问题。
性质：
- 外观：EGCG为无色结晶性固体。
- 稳定性：在酸性条件下相对稳定，在碱性条件下易于降解。
- 溶解性：EGCG在水中溶解度较低，溶解性在酸性pH条件下较好。
用途：
制法：
EGCG通常是通过茶叶提取得到。具体制法包括茶叶提取物的制备、去除杂质和分离纯化。
安全信息：
一般来说，EGCG在适量使用下是安全的，不会对健康产生明显不良影响。高剂量EGCG摄入可能引发一些不良反应，特别是与肝脏毒性有关的问题。另外，儿童、孕妇和乳母应特别注意使用EGCG的剂量和安全问题。
最后更新：2024-04-09 20:45:29
供应商列表
现货供应
产品名: 儿茶素杂质3 ((-)-表儿茶素没食子酸酯) 去供应商网站查看 询盘CAS: 1257-08-5
产地: 中国-STD
包装: 支
规格: 10mg，25mg，50mg，100mg
价格: 电询
库存: 现货
电话: 0714-3999186
手机: 15671228036
电子邮件: 2853786052@qq.com
QQ: 2853786052
微信: 15671228036
产品描述: 43203C
提供多种规格
产品名: 表儿茶素没食子酸酯 紫外分光标准品 去供应商网站查看 询盘CAS: 1257-08-5
产地: 北京
包装: 20mg /瓶
规格: SVE1005-20mg
价格: 电话、微信、QQ、邮件
电话: 010-50973130
手机: 17801761073(微信同号)
电子邮件: 3193328036@qq.com
QQ: 3193328036
微信: 17801761073
产品描述: 索莱宝直销，欢迎来询
现货供应
产品名: 儿茶素杂质3 ((-)-表儿茶素没食子酸酯) 去供应商网站查看 询盘CAS: 1257-08-5
产地: 中国-STD
包装: 支
规格: 10mg，25mg，50mg，100mg
价格: 电询
库存: 现货
电话: 0714-3999186
手机: 15671228036
电子邮件: 2853786052@qq.com
QQ: 2853786052
微信: 15671228036
产品描述: 43203C
提供多种规格
产品名: 表儿茶素没食子酸酯 紫外分光标准品 去供应商网站查看 询盘CAS: 1257-08-5
产地: 北京
包装: 20mg /瓶
规格: SVE1005-20mg
价格: 电话、微信、QQ、邮件
电话: 010-50973130
手机: 17801761073(微信同号)
电子邮件: 3193328036@qq.com
QQ: 3193328036
微信: 17801761073
产品描述: 索莱宝直销，欢迎来询
您刚刚浏览过
你知道吗？
微信搜索化工百科或扫描下方二维码，添加化工百科小程序，随时随地查信息！