Green Tea Leaves Cuts - Herbal Collection
Green Tea - 100 g & 1 kg - Herbal Collection
May help with
- Stimulant (caffeine)
- anti inflammatory
- anti aging
- heart protection
- improve insulin sensitivity
- anti diabetic
Dried Green Tea Powder (Camillia sinensis) is great as a general tonic. It contains powerful antioxidants and can be used both externally and internally.
Source : http://www.wikiphyto.org/wiki/Theier
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Tea tree, Tea
International Latin denomination
Description and habitat
- Evergreen shrub, up to 15 m tall, kept small by cultivation to facilitate harvesting
- Native to China (eastern Yunnan) and northern India
- Numerous ramifications, the old leaf is glabrous, the young shoots are covered with down (hence the name “pekoë” = hair in Chinese), harvested manually above the petiolar narrowing
History and tradition
- Plant known for more than 5000 years in China
- The tea ceremony was born in Japan in the 16th century, the Jesuits brought it back to France in the 17th century, it is the most consumed drink in the world apart from water.
- Black tea is obtained by storing fresh leaves until they wither, then they are rolled, bringing the juices into contact with the enzymes causing fermentation to begin, the catechins are transformed into phlobaphenes by oxidases, the aromatic principles develop, the leaves are then roasted and dried
- For green tea, fermentation does not take place, the enzymes are inactivated by pressurized steam, then dried
- Oolong tea is semi-fermented
- The leaf can undergo a more or less thorough fermentation to give different qualities:
- Green tea (unfermented); red (semi-fermented) or black (fermented) tea
Dosage forms available
Main components of the plant
- Methylxanthines linked to tannins : caffeine  (= theine ) up to 4%, theobromine , theophylline , adenine , xanthine
- Polyphenols :
- Catechic tannins (10 to 20%)
- Catechins ( epicatechin , epicatechin gallate , gallocatechin gallate , epigallocatechin , epigallocatechin gallate ), yellow ( theaflavin ) and red ( theaflagallin ) flavonic dimers
- Flavan-3-ols specific to oolong tea: oolonghomobisflavans A and B
- Phenolic acids , gallic acid and chlorogenic acid
- Flavonoids : apigenin derivatives ( isoschaftoside and vicenin-3 ), quercetin ( quercetol )
- Triterpene saponins
- Amino acid with a structure close to that of glutamic acid : l-theanine ( green tea )
- Essential oil with aldehydes and monoterpenols
Main components of buds or young shoots
Main components of essential oil
- Stimulating effect thanks to caffeine
- Anti-inflammatory, anti-tumor, antioxidant, anti-aging
- Antimicrobial  ,  ( Staphylococcus epidermidis , Micrococcus luteus , Brevibacterium linens , Pseudomonas fluorescens , Bacillus subtilis , antibacterial against methicillin-resistant ''Staphylococcus aureus'' by production of beta-lactamase 
- Apigenin derivatives ( isoschaftoside and vicenin-3 ) are lipoxygenase inhibitors
- Polyphenols are antioxidants and free radical scavengers
- Catechins protect DNA and amino acids from nitrative stress (preferably in green tea ), reduce total cholesterol and LDL-cholesterol 
- Flavonoids ( quercetin ) inhibit LDL oxidation, which induces atherogenesis
- Tea consumption is associated with a reduction in heart attacks, and a reduction in the risk of cancer, cognitive decline and dementia, an improvement in bone density
- Neuroprotective 
- Anticholinesterase activity 
- The astringency of tannins induces a decrease in the absorption and bioavailability of certain drugs ( alkaloids , neuroleptics and antidepressants)
- Antimicrobial activity and synergy with penicillins
- L-theanine easily crosses the blood-brain barrier, increases brain levels of GABA, an inhibitory neurotransmitter, increases brain levels of dopamine and serotonin
- L-theanine protects the brain from glutamate-induced neurotoxicity, which causes neurodegenerative diseases. It significantly reduces the mental, physical and social symptoms associated with premenstrual syndrome. It normalizes blood pressure. It helps to temper the irritating effects of caffeine
- Tea consumption increases telomere length and improves longevity 
- Ingestion of green tea improves insulin sensitivity  , decreases glycated hemoglobin  , increases expression of glucose transporters GLUT-IV  , improves glucose tolerance [12 ] and decreases the incidence of diabetes 
- The consumption of tea rich in catechins combats insulin resistance in overweight patients with metabolic syndrome, acts on the distribution of body fat  and, by increasing the combustion of lipids, participates in weight regulation. This is shown by the results presented at the Inra symposium "Catechins and diet: from sensorial aspects to nutrition" held in Paris on January 23, 2008. " Catechins increase thermogenesis, improve insulin function and reduce the 'intra-abdominal obesity'
- Fermented tea acts favorably on hepatic steatosis in rats 
- Anti-collagenase and anti-elastase activity 
- Coffee and tea are the main sources of antioxidants in France, in the form of polyphenols which contribute to 48.5% of total antioxidant intake
- The main sources of polyphenols for the French are coffee (36.9%), tea (33.6%), chocolate (10.4%) and fruits and vegetables (7.4%), before red wine (7.2%). Total intakes are 835 mg/d and increase with age (except after 55 years old) source: NutriNet-Santé 
Properties of essential oil
Indications of the whole plant (phytotherapy)
- Primarily pleasure drink
- A 200 ml cup of tea provides an average of 135 mg of flavonoids
- Recommended in diabetes
- Obesity 
- Alzheimer's disease (?) 
- Considerable reduction by the green tea nutrition of rats with cancerous nodules in a few months (the monomer molecules of green tea are the most active, not those of fermented black tea which contains polymerized molecules)
- Green tea is rich in catechins , black tea especially in theaflavins and thearubigins ( polymerized catechins ), but both are rich in theanine
Indications of the bud (gemmotherapy)
Specific indications of essential oil (aromatherapy)
Known or suspected mode of action
- Apigenin ( flavonoid ) blocks a step in the estrogen manufacturing chain
- Isoschaftoside and vicenin-3 (derivatives of apigenin ) are lipoxygenase inhibitors
- French Pharmacopoeia list A (sheet)
Possible side effects and precautions for use
- Decreased absorption and bioavailability of certain drugs ( alkaloids , neuroleptics and antidepressants) by tannins
- Green tea has been identified as a potent inhibitor of CYP3A4 metabolism, followed by Agaricus , Viscum , noni juice , but the risks of clinically relevant systemic or intestinal interactions are considered unlikely with these plants (apart from products containing of concentrated green tea), seaweed extracts and garlic are classified as non-inhibitors 
- In humans, tea infusion inhibits iron absorption.
- The inhibition of non-heme iron absorption is 30% with green tea and varies from 36 to 61% with black tea. The iron absorption inhibiting effect of tea is attributed to the insoluble tannin-iron complex that forms in the lumen of the gastrointestinal tract.
- Go↑ Naoko Fujimori, Hiroshi Ashihara. Biosynthesis of Caffeine in Flower Buds of Camellia sinensis. Ann Bot (1993) 71 (3): 279-284 doi:10.1006/anbo.1993.1034 full text
- Go↑ JM Hamilton-Miller. Antimicrobial properties of tea (Camellia sinensis L.). Antimicrobial Agents Chemother. 1995 November; 39(11): 2375–2377. PMCID: PMC162950 full text
- Go↑ Sharma A, Gupta S, Sarethy IP, Dang S, Gabrani R. Green tea extract: possible mechanism and antibacterial activity on skin pathogens. Food Chem. 2012 Nov 15;135(2):672-5. doi: 10.1016/j.foodchem.2012.04.143. PMID 22868144
- Go↑ Aqil F, Khan MS, Owais M, Ahmad I. Effect of certain bioactive plant extracts on clinical isolates of beta-lactamase producing methicillin resistant Staphylococcus aureus. J Basic Microbiol. 2005;45(2):106-14. PMID 15812867
- Go↑ Kim A, Chiu A, Barone MK, Avino D, Wang F, Coleman CI, Phung OJ. Green tea catechins decrease total and low-density lipoprotein cholesterol: a systematic review and meta-analysis. J Am Diet Assoc. 2011 Nov;111(11):1720-9. doi: 10.1016/j.jada.2011.08.009. PMID 22027055
- Go↑ Mandel S, Youdim MB. Catechin polyphenols: neurodegeneration and neuroprotection in neurodegenerative diseases. Free Radic Biol Med. 2004 Aug 1;37(3):304-17. PMID 15223064
- Go↑ Jazayeri SB, Amanlou A, Ghanadian N, Pasalar P, Amanlou M. A preliminary investigation of anticholinesterase activity of some Iranian medicinal plants commonly used in traditional medicine. DARU Journal of Pharmaceutical Sciences. 2014;22(1):17. doi:10.1186/2008-2231-22-17. Full Text
- Go↑ Chan R et al. Chinese tea consumption is associated with longer telomere length in elderly Chinese men. Br J Nutr 2010; 103: 107-13
- Go↑ Fukino Y, Shimbo M, Aoki N, Okubo T, Iso H. Randomized controlled trial for an effect of green tea consumption on insulin resistance and inflammation markers. J Nutr Sci Vitaminol (Tokyo). 2005 Oct;51(5):335-42. PMID 16392704
- Go↑ Fukino Y, Ikeda A, Maruyama K, Aoki N, Okubo T, Iso H. Randomized controlled trial for an effect of green tea-extract powder supplementation on glucose abnormalities. Eur J Clin Nutr. 2008 Aug;62(8):953-60. PMID 17554248
- Go↑ Wu LY, Juan CC, Hwang LS, Hsu YP, Ho PH, Ho LT. Green tea supplementation improves insulin resistance and increases glucose transporter IV content in a fructose-fed rat model. Eur J Nutr. 2004 Apr;43(2):116-24. PMID 15083319
- Go↑ Tsuneki, Mitsuyo Ishizuka, Miki Terasawa, Jin-Bin Wu, Toshiyasu Sasaoka, Ikuko Kimura. Effect of green tea on blood glucose levels and serum proteomic patterns in diabetic (db/db) mice and on glucose metabolism in healthy humans. Hiroshi. BMC Pharmacology 2004, 4:18 doi:10.1186/1471-2210-4-18 
- Go↑ Iso H, Date C, Wakai K, Fukui M, Tamakoshi A; JACC Study Group. The relationship between green tea and total caffeine intake and risk for self-reported type 2 diabetes among Japanese adults. Ann Intern Med. 2006 Apr 18;144(8):554-62. Ann Intern Med. 2006 Apr 18;144(8):554-62. PMID 16618952
- Go↑ Cao H, Hininger-Favier I, Kelly MA, Benaraba R, Dawson HD, Coves S, Roussel AM, Anderson RA. Green tea polyphenol extract regulates the expression of genes involved in glucose uptake and insulin signaling in rats fed a high fructose diet. J Agric Food Chem. 2007 Jul 25;55(15):6372-8. PMID 17616136
- Go↑ Zhou J, Zhang L, Zhang J, Wan X. Aqueous extract of post-fermented tea reverts the hepatic steatosis of hyperlipidemia rat by regulating the lipogenic genes expression and hepatic fatty acid composition. BMC Complementary and Alternative Medicine 2014, 14:263 (23 July 2014) Full text abstract
- Go↑ Thring TS, Hili P, Naughton DP. Anti-collagenase, anti-elastase and anti-oxidant activities of extracts from 21 plants. BMC Complement Altern Med. 2009 Aug 4;9:27. doi: 10.1186/1472-6882-9-27. PubMed PMID 19653897
- Go↑ AG Dulloo, J Seydoux, L Girardier, P Chantre, J Vandermander. Green tea and thermogenesis: interactions between catechin-polyphenols, caffeine and sympathetic activity. International Journal of Obesity (2000) 24, 252±258. Full Text
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- Go↑ Engdal S, Nilsen OG. In vitro inhibition of CYP3A4 by herbal remedies frequently used by cancer patients. Phytother Res. 2009 Jul;23(7):906-12. doi: 10.1002/ptr.2750. PMID 19170155
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- Fairweather-Tait SJ, Piper Z, Fatemi SJ, Moore GR., The effect of tea on iron and aluminum metabolism in the rat, Br J Nutr. 1991 Jan; 65(1):61-8.
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- Neeraj Kumar Sharma, Dheeraj Ahirwar, Deenanath Jhade, Vibhor K. Jain. In vitro anti-obesity assay of alcoholic and aqueous extracts of camellia sinensis leaves. IJPSR (2012), Vol. 3, Issue 06, 1863-1866
Store in a cool, dry place, away from light. Keep tightly closed, away from the reach of Children and pets.
Do not exceed the daily dose.
This product is not intended to prevent or cure any form of illness or disease.
If you are pregnant or nursing ; If you have a medical condition or are in the course of medical treatment ; If you are programmed for theater/operation in the near future, please consult your healthcare practitioner before using this product.
This product cannot replace a varied and balanced diet and a healthy lifestyle.
This product has not been evaluated by the SAHPRA for its quality, safety or intended use.