CN106977517B - 分步获取富集了咖啡因、egc和egcg的茶叶提取物的方法 - Google Patents
分步获取富集了咖啡因、egc和egcg的茶叶提取物的方法 Download PDFInfo
- Publication number
- CN106977517B CN106977517B CN201710170462.1A CN201710170462A CN106977517B CN 106977517 B CN106977517 B CN 106977517B CN 201710170462 A CN201710170462 A CN 201710170462A CN 106977517 B CN106977517 B CN 106977517B
- Authority
- CN
- China
- Prior art keywords
- enriched
- tea extract
- egcg
- egc
- caffeine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- RYYVLZVUVIJVGH-UHFFFAOYSA-N caffeine Chemical compound CN1C(=O)N(C)C(=O)C2=C1N=CN2C RYYVLZVUVIJVGH-UHFFFAOYSA-N 0.000 title claims abstract description 63
- WMBWREPUVVBILR-UHFFFAOYSA-N GCG Natural products C=1C(O)=C(O)C(O)=CC=1C1OC2=CC(O)=CC(O)=C2CC1OC(=O)C1=CC(O)=C(O)C(O)=C1 WMBWREPUVVBILR-UHFFFAOYSA-N 0.000 title claims abstract description 41
- WMBWREPUVVBILR-WIYYLYMNSA-N (-)-Epigallocatechin-3-o-gallate Chemical compound O([C@@H]1CC2=C(O)C=C(C=C2O[C@@H]1C=1C=C(O)C(O)=C(O)C=1)O)C(=O)C1=CC(O)=C(O)C(O)=C1 WMBWREPUVVBILR-WIYYLYMNSA-N 0.000 title claims abstract description 34
- LPHGQDQBBGAPDZ-UHFFFAOYSA-N Isocaffeine Natural products CN1C(=O)N(C)C(=O)C2=C1N(C)C=N2 LPHGQDQBBGAPDZ-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 229960001948 caffeine Drugs 0.000 title claims abstract description 31
- VJEONQKOZGKCAK-UHFFFAOYSA-N caffeine Natural products CN1C(=O)N(C)C(=O)C2=C1C=CN2C VJEONQKOZGKCAK-UHFFFAOYSA-N 0.000 title claims abstract description 31
- XMOCLSLCDHWDHP-UHFFFAOYSA-N L-Epigallocatechin Natural products OC1CC2=C(O)C=C(O)C=C2OC1C1=CC(O)=C(O)C(O)=C1 XMOCLSLCDHWDHP-UHFFFAOYSA-N 0.000 title claims abstract description 29
- XMOCLSLCDHWDHP-IUODEOHRSA-N epi-Gallocatechin Chemical compound C1([C@H]2OC3=CC(O)=CC(O)=C3C[C@H]2O)=CC(O)=C(O)C(O)=C1 XMOCLSLCDHWDHP-IUODEOHRSA-N 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims abstract description 13
- 241001122767 Theaceae Species 0.000 title claims abstract 15
- 239000012530 fluid Substances 0.000 claims abstract description 24
- 239000002994 raw material Substances 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000007710 freezing Methods 0.000 claims description 2
- 230000008014 freezing Effects 0.000 claims description 2
- 238000000605 extraction Methods 0.000 abstract description 7
- 238000002360 preparation method Methods 0.000 abstract description 5
- 239000003960 organic solvent Substances 0.000 abstract description 4
- 238000000926 separation method Methods 0.000 abstract description 4
- 235000013305 food Nutrition 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 2
- 235000013616 tea Nutrition 0.000 description 53
- 244000269722 Thea sinensis Species 0.000 description 51
- ADRVNXBAWSRFAJ-UHFFFAOYSA-N catechin Natural products OC1Cc2cc(O)cc(O)c2OC1c3ccc(O)c(O)c3 ADRVNXBAWSRFAJ-UHFFFAOYSA-N 0.000 description 9
- 235000005487 catechin Nutrition 0.000 description 9
- 229950001002 cianidanol Drugs 0.000 description 8
- PFTAWBLQPZVEMU-DZGCQCFKSA-N (+)-catechin Chemical compound C1([C@H]2OC3=CC(O)=CC(O)=C3C[C@@H]2O)=CC=C(O)C(O)=C1 PFTAWBLQPZVEMU-DZGCQCFKSA-N 0.000 description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 6
- 238000001914 filtration Methods 0.000 description 6
- 238000004108 freeze drying Methods 0.000 description 5
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- 150000008442 polyphenolic compounds Chemical class 0.000 description 3
- 235000013824 polyphenols Nutrition 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 238000001694 spray drying Methods 0.000 description 3
- LSHVYAFMTMFKBA-TZIWHRDSSA-N (-)-epicatechin-3-O-gallate Chemical compound O([C@@H]1CC2=C(O)C=C(C=C2O[C@@H]1C=1C=C(O)C(O)=CC=1)O)C(=O)C1=CC(O)=C(O)C(O)=C1 LSHVYAFMTMFKBA-TZIWHRDSSA-N 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- 240000003152 Rhus chinensis Species 0.000 description 2
- 235000014220 Rhus chinensis Nutrition 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- -1 catechin gallic acid ester Chemical class 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000012498 ultrapure water Substances 0.000 description 2
- LSHVYAFMTMFKBA-PZJWPPBQSA-N (+)-catechin-3-O-gallate Chemical compound O([C@H]1CC2=C(O)C=C(C=C2O[C@@H]1C=1C=C(O)C(O)=CC=1)O)C(=O)C1=CC(O)=C(O)C(O)=C1 LSHVYAFMTMFKBA-PZJWPPBQSA-N 0.000 description 1
- 241001061264 Astragalus Species 0.000 description 1
- LSHVYAFMTMFKBA-UHFFFAOYSA-N ECG Natural products C=1C=C(O)C(O)=CC=1C1OC2=CC(O)=CC(O)=C2CC1OC(=O)C1=CC(O)=C(O)C(O)=C1 LSHVYAFMTMFKBA-UHFFFAOYSA-N 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 208000008589 Obesity Diseases 0.000 description 1
- 208000013738 Sleep Initiation and Maintenance disease Diseases 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229930013930 alkaloid Natural products 0.000 description 1
- LNTHITQWFMADLM-UHFFFAOYSA-N anhydrous gallic acid Natural products OC(=O)C1=CC(O)=C(O)C(O)=C1 LNTHITQWFMADLM-UHFFFAOYSA-N 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 235000006533 astragalus Nutrition 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 150000001765 catechin Chemical class 0.000 description 1
- 210000000170 cell membrane Anatomy 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004440 column chromatography Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 206010012601 diabetes mellitus Diseases 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 229940030275 epigallocatechin gallate Drugs 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 229940074391 gallic acid Drugs 0.000 description 1
- 235000004515 gallic acid Nutrition 0.000 description 1
- LVJJFMLUMNSUFN-UHFFFAOYSA-N gallocatechin gallate Natural products C1=C(O)C=C2OC(C=3C=C(O)C(O)=CC=3)C(O)CC2=C1OC(=O)C1=CC(O)=C(O)C(O)=C1 LVJJFMLUMNSUFN-UHFFFAOYSA-N 0.000 description 1
- 235000009569 green tea Nutrition 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 235000013402 health food Nutrition 0.000 description 1
- 238000004128 high performance liquid chromatography Methods 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 206010022437 insomnia Diseases 0.000 description 1
- 238000006317 isomerization reaction Methods 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000004770 neurodegeneration Effects 0.000 description 1
- 208000015122 neurodegenerative disease Diseases 0.000 description 1
- 235000020824 obesity Nutrition 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 210000004233 talus Anatomy 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D473/00—Heterocyclic compounds containing purine ring systems
- C07D473/02—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6
- C07D473/04—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6 two oxygen atoms
- C07D473/06—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6 two oxygen atoms with radicals containing only hydrogen and carbon atoms, attached in position 1 or 3
- C07D473/12—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6 two oxygen atoms with radicals containing only hydrogen and carbon atoms, attached in position 1 or 3 with methyl radicals in positions 1, 3, and 7, e.g. caffeine
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D311/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
- C07D311/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D311/04—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring
- C07D311/58—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring other than with oxygen or sulphur atoms in position 2 or 4
- C07D311/60—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring other than with oxygen or sulphur atoms in position 2 or 4 with aryl radicals attached in position 2
- C07D311/62—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring other than with oxygen or sulphur atoms in position 2 or 4 with aryl radicals attached in position 2 with oxygen atoms directly attached in position 3, e.g. anthocyanidins
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Tea And Coffee (AREA)
- Coloring Foods And Improving Nutritive Qualities (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
本发明涉及茶叶提取物制备,旨在提供一种分步获取富集了咖啡因、EGC和EGCG的茶叶提取物的方法。包括:将茶叶原料加至纯净水中浸提后过滤,过滤液浓缩后喷雾干燥或冷冻干燥,得到富集了咖啡因的茶叶提取物;滤渣加至常温纯净水中浸提后过滤,得到过滤液和滤渣,将过滤液浓缩后喷雾干燥或冷冻干燥得到富集了EGC的茶叶提取物;滤渣加至纯净水中浸提后过滤,过滤液C浓缩后喷雾干燥或冷冻干燥,得到富集了EGCG的茶叶提取物。本发明基于咖啡因、EGCG、EGC的热力学特性差异,通过控制浸提时间和温度,通过多次过滤分离对咖啡因、EGCG、EGC进行富集;该工艺术操作简单、实施周期短。无需加入任何物质或有机溶剂,保证了产品的安全性,在食品等领域不存在准入问题。
Description
技术领域
本发明涉及茶叶提取物制备,具体涉及一种分步获取富集了咖啡因、EGC和EGCG的茶叶提取物的方法。
背景技术
当前,茶已经是世界范围内最受欢迎的饮料,其消耗量仅次于水。饮茶接受度不断提高主要得益于茶对人体健康的促进作用。体内外研究表明,茶叶中茶多酚对肿瘤、心脑血管疾病、神经退行性疾病、肥胖、糖尿病等都具有一定的防治作用。茶多酚占茶叶干物质大约20%,而茶多酚中70%左右时儿茶素,儿茶素主要包括EGC(表没食子酸儿茶素)、EC(表儿茶素)、ECG(表儿茶素没食子酸酯)、EGCG(表没食子儿茶素没食子酸酯),在茶叶加工过程中会发生异构化,产生GC(没食子儿茶素)、C(儿茶素)、GCG(没食子儿茶素没食子酸酯)、CG(儿茶素没食子酸酯)等,在绿茶中儿茶素主要EGC和EGCG为主,占全部儿茶素的80%左右。可以说,以EGCG和EGC为主的儿茶素是茶叶健康功能的物质基础。
咖啡因是一种黄嘌呤生物碱化合物,是中枢神经兴奋剂,占茶叶干物质的3%左右,喝茶提神主要得益于茶叶中的咖啡因。但是部分对咖啡因敏感人群在饮茶或者食用含茶制品时会导致入睡困难、失眠等问题。
目前在茶叶提取物制备工艺中,富集和分离咖啡因、EGCG和EGC的方法主要包括:溶剂萃取和柱层析(大孔树脂、凝胶树脂)。这两种工艺不仅周期长、得率低,而且都不可避免地使用有机溶剂(乙酸乙酯、氯仿等)。同时提取物的纯度过高将导致其毒性增强,反而会限制产品的使用范围。
因此,如何能简单、快速、安全地制备高咖啡因、高EGCG和高EGC含量的茶叶提取物对于细分茶叶提取物市场,拓宽其应用领域具有重要的意义。
发明内容
本发明要解决的技术问题是,克服现有技术中存在的不足,提供一种分步获取富集了咖啡因、EGC和EGCG的茶叶提取物的方法。
为解决技术问题,本发明的解决方案是:
提供一种分步获取富集了咖啡因、EGC和EGCG的茶叶提取物的方法,包括以下步骤:
(1)将经杀青、干燥的茶叶原料,按1∶30~50/g∶ml的质量体积比例加至90~100℃的纯净水中,浸提40~60s后过滤,得到过滤液A和滤渣;将过滤液A浓缩后喷雾干燥或冷冻干燥,即得到富集了咖啡因的茶叶提取物;
(2)将步骤(1)中得到的滤渣按1∶30~50/g∶ml的质量体积比例加至25~35℃的纯净水中,浸提20~30min后过滤,得到过滤液B和滤渣;将过滤液B浓缩后喷雾干燥或冷冻干燥,即得到富集了EGC的茶叶提取物;
(3)将步骤(2)中得到的滤渣按1∶30~50/g∶ml的质量体积比例加至70~80℃的纯净水中,浸提40~50min后过滤,得到过滤液C;将过滤液C浓缩后喷雾干燥或冷冻干燥,即得到富集了EGCG的茶叶提取物。
本发明中,步骤(1)中得到的茶叶提取物中,咖啡因的质量百分含量为26.9~30.2%。
本发明中,步骤(2)中得到的茶叶提取物中,EGC的质量百分含量为23.9~26.6%。
本发明中,步骤(3)中得到的茶叶提取物中,EGCG的质量百分含量为26.7~28.1%。
发明原理描述:
本发明是在不使用任何有机溶剂的前提下,利用咖啡因、EGCG、EGC的热力学特性差异,实现分布提取以获得相应富集产品。
具体原理是:茶叶中咖啡因、EGC和EGCG的浸出规律不同,咖啡因主要依赖温度,在高温90-100℃时能快速透过细胞膜和细胞壁;EGC浸提主要依赖时间,对温度依赖性较少,而EGCG对温度和时间均具有依赖性,因此通过相对低温(25~35℃)浸提先富集EGC,再通过提高温度来浸提EGCG。这种分离手段是纯物理的,不使用水之外的其他溶剂,制备的提取物不仅富集了目标成分,还含有其他常规成分,即可达到增效的目的,也可在食品中安全应用。
与现有技术相比,本发明的有益效果在于:
(1)本发明基于咖啡因、EGCG、EGC的热力学特性差异,通过控制浸提的时间和温度,通过多次过滤分离对咖啡因、EGCG、EGC进行富集;该工艺术操作简单、实施周期短。
(2)本发明所制备的提取物在富集了咖啡因、EGCG、EGC的同时,也保留了其它对人体有益的茶叶成分,有别于纯化后的单体。
(3)本发明的制备方法无需加入任何物质或有机溶剂,保证了产品的安全性,在食品等领域不存在应用准入问题。
(4)本发明能对茶叶成分进行充分提取,效率高。
具体实施方式
实施例1
(1)称取经杀青干燥后茶叶原料10kg,以1:30(g:ml)的比例加入100℃的纯净水浸提40s后过滤,得到过滤液A和滤渣,将过滤液A浓缩后冷冻干燥,即得到富集了咖啡因的茶叶提取物0.41kg(占茶叶原料干重);
(2)向步骤(1)中得到的滤渣以1:30(g:ml)的比例加入35℃的纯净水浸提20min后过滤,得到过滤液B和滤渣;将过滤液B浓缩后冷冻干燥,即得到富集了EGC的茶叶提取物1.58kg(占茶叶原料干重);
(3)向步骤(2)中得到的滤渣以1:30(g:ml)的比例加入80℃的纯净水浸提40min后过滤,得到过滤液C;将过滤液C浓缩后冷冻干燥,即得到富集了EGCG的茶叶提取物1.96kg(占茶叶原料干重)。
实施例2
(1)经杀青干燥后茶叶原料,以1:45(g:ml)的比例加入95℃的纯净水浸提50s后过滤,得到过滤液A和滤渣,将过滤液A浓缩后喷雾干燥,即得到富集了咖啡因的茶叶提取物0.35kg(占茶叶原料干重);
(2)向步骤(1)中得到的滤渣以1:45(g:ml)的比例加入30℃的纯净水浸提25min后过滤,得到过滤液B和滤渣;将过滤液B浓缩后喷雾干燥,即得到富集了EGC的茶叶提取物1.51kg(占茶叶原料干重);
(3)向步骤(2)中得到的滤渣以1:45(g:ml)的比例加入75℃的纯净水浸提45min后过滤,得到过滤液C;将过滤液C浓缩后喷雾干燥,即得到富集了EGCG的茶叶提取物2.01kg(占茶叶原料干重)。
实施例3
(1)经杀青干燥后茶叶原料,以1:50(g:ml)的比例加入90℃的纯净水浸提60s后过滤,得到过滤液A和滤渣,将过滤液A浓缩后冷冻干燥,即得到富集了咖啡因的茶叶提取物0.39kg(占茶叶原料干重);
(2)向步骤(1)中得到的滤渣以1:50(g:ml)的比例加入25℃的纯净水浸提30min后过滤,得到过滤液B和滤渣;将过滤液B浓缩后冷冻干燥,即得到富集了EGC的茶叶提取物1.53kg(占茶叶原料干重);
(3)向步骤(2)中得到的滤渣以1:50(g:ml)的比例加入70℃的纯净水浸提50min后过滤,得到过滤液C;将过滤液C浓缩后喷雾干燥或冷冻干燥,即得到富集了EGCG的茶叶提取物2.11(占茶叶原料干重)。
咖啡因、EGCG、EGC含量测定
采用高效液相色谱法,色谱条件为:色谱柱:ODS,C18(250mm×4.6mm,5μm);流动相A:醋酸/乙腈/高纯水(0.5/3/96.5,V/V);流动相B:醋酸/乙腈/高纯水(0.5/30/69.5,V/V);梯度洗脱:B相在35min内由20%变为65%;流速:1.0ml/min;检测波长:280nm;温度:35℃;进样量:10μl。
表1实施例中提取物咖啡因、EGCG、EGC含量
从实验数据可以看出,应用本发明的分布提取技术制备的茶叶提取物很好地富集咖啡因、EGCG、EGC。相应茶叶提取物可以根据特点针对性地应用在日用品、食品和保健食品等领域。
最后,还需要注意的是,显然本发明不限于以上实施例,还可以有许多变形,本领域的普通技术人员能从本发明公开的内容直接导出或联想到的所有变形,均应认为是本发明的保护范围。
Claims (1)
1.分步获取富集了咖啡因、EGC和EGCG的茶叶提取物的方法,其特征在于,包括以下步骤:
(1)将经杀青、干燥的茶叶原料,按1∶30~50 / g∶ml的质量体积比例加至90~100℃的纯净水中,浸提40~60s后过滤,得到过滤液A和滤渣;将过滤液A浓缩后喷雾干燥或冷冻干燥,即得到富集了咖啡因的茶叶提取物;茶叶提取物中,咖啡因的质量百分含量为26.9~30.2%;
(2)将步骤(1)中得到的滤渣按1∶30~50 / g∶ml的质量体积比例加至25~35℃的纯净水中,浸提20~30min后过滤,得到过滤液B和滤渣;将过滤液B浓缩后喷雾干燥或冷冻干燥,即得到富集了EGC的茶叶提取物;茶叶提取物中,EGC的质量百分含量为23.9~26.6%;
(3)将步骤(2)中得到的滤渣按1∶30~50 / g∶ml的质量体积比例加至70~80℃的纯净水中,浸提40~50min后过滤,得到过滤液C;将过滤液C浓缩后喷雾干燥或冷冻干燥,即得到富集了EGCG的茶叶提取物;茶叶提取物中,EGCG的质量百分含量为26.7~28.1%。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710170462.1A CN106977517B (zh) | 2017-03-21 | 2017-03-21 | 分步获取富集了咖啡因、egc和egcg的茶叶提取物的方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710170462.1A CN106977517B (zh) | 2017-03-21 | 2017-03-21 | 分步获取富集了咖啡因、egc和egcg的茶叶提取物的方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN106977517A CN106977517A (zh) | 2017-07-25 |
CN106977517B true CN106977517B (zh) | 2019-08-27 |
Family
ID=59338914
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201710170462.1A Active CN106977517B (zh) | 2017-03-21 | 2017-03-21 | 分步获取富集了咖啡因、egc和egcg的茶叶提取物的方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN106977517B (zh) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109497218A (zh) * | 2019-01-15 | 2019-03-22 | 福建仙洋洋生物科技有限公司 | 一种节能生产高品质茶浓缩液的工艺 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1634913A (zh) * | 2003-12-31 | 2005-07-06 | 中国海洋大学 | 茶叶中有效成分综合制备工艺 |
CN1911061A (zh) * | 2006-08-29 | 2007-02-14 | 浙江大学 | 用茶树生叶制取低咖啡因速溶茶粉和天然咖啡因粗品的方法 |
-
2017
- 2017-03-21 CN CN201710170462.1A patent/CN106977517B/zh active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1634913A (zh) * | 2003-12-31 | 2005-07-06 | 中国海洋大学 | 茶叶中有效成分综合制备工艺 |
CN1911061A (zh) * | 2006-08-29 | 2007-02-14 | 浙江大学 | 用茶树生叶制取低咖啡因速溶茶粉和天然咖啡因粗品的方法 |
Non-Patent Citations (1)
Title |
---|
Production of green tea EGC- and EGCG-enriched fractions by a two-step extraction procedure;Laurent Bazinet等;《Separation Purification Technology》;20071231;第56卷;53-56 * |
Also Published As
Publication number | Publication date |
---|---|
CN106977517A (zh) | 2017-07-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Dong et al. | Isolation of antioxidant catechins from green tea and its decaffeination | |
CA2643860A1 (en) | Extracts and methods comprising green tea species | |
CN103520233B (zh) | 一种罗布麻叶总多酚的制备方法及用途 | |
WO2004009575A1 (en) | An extract of a typhae pollen and its manufacture and use | |
CA2486378A1 (en) | Preparation and application of total salvianolic acid | |
CN103815103B (zh) | 一种从新鲜茶叶中提取低咖啡因高含量茶多酚的方法 | |
CN108558837B (zh) | 黄烷醇生物碱及其制备方法和应用 | |
CN101463025A (zh) | 一种山楂叶总黄酮的提取制备方法 | |
JP2004305012A (ja) | 低カフェイン天然植物エキスの製造方法 | |
CN106977517B (zh) | 分步获取富集了咖啡因、egc和egcg的茶叶提取物的方法 | |
CN104897806A (zh) | 判断菊花是否经过硫熏的hplc检测方法 | |
RU2519640C2 (ru) | Способ приготовления полифенольных экстрактов из листьев шпината | |
CN103550599A (zh) | 一种毛竹叶提取物制备方法 | |
CN104606276A (zh) | 一种从柿叶中提取小分子柿叶黄酮的方法 | |
CN103091412B (zh) | 一种银杏内酯有效部位检测方法 | |
CN102178725B (zh) | 黄花草木犀总皂苷及其制备方法和药物用途 | |
CN103933104A (zh) | 菟丝子提取物及其制备方法和菟丝子配方颗粒 | |
CN107375356A (zh) | 一种同时制备高纯度总黄酮醇苷和银杏内酯的方法 | |
CN103163252B (zh) | 银杏内酯组合物中总银杏酸的测定方法 | |
CN106831910A (zh) | 一种马钱苷原料药的制备方法 | |
CN102100721A (zh) | 一种亳菊总黄酮的生产方法 | |
CN110721128A (zh) | 桑白皮提取物及其制备方法 | |
CN101612184A (zh) | 多舌飞蓬提取物、含该提取物的组合物及制备方法和用途 | |
CN105876012B (zh) | 一种富含Vc的天然复合型红茶膏的制备方法 | |
CN102078411B (zh) | 白花蛇舌草注射液的制备方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right |
Effective date of registration: 20210220 Address after: 1208, 2nd floor, 125 Longwu industrial block, Zhuantang street, Xihu District, Hangzhou City, Zhejiang Province, 310024 Patentee after: Hangzhou Wanrong Tea Technology Co.,Ltd. Address before: 310058 Yuhang Tang Road, Xihu District, Hangzhou, Zhejiang 866 Patentee before: ZHEJIANG University |
|
TR01 | Transfer of patent right |