Green Tea Catechins Polyphenol Catechins Powder

Catechins Powder

What are Catechins?

Green tea extract Catechins Powder | Tea Polyphenols is a flavan-3-ol, a type of natural phenol and antioxidant. It is a plant secondary metabolite. It belongs to the group of flavan-3-ols or simply flavanols, part of the chemical family of flavonoids.

Research aimed at finding the active compounds in green tea revealed that its protective effects are due chiefly to catechins. Tea contains four main catechin substances: EC, ECg, EGC and EGCg, all of which are inclusively called catechin. Epigallocatechin gallate (EGCG) is the most powerful of these catechins. EGCG as an antioxidant is about 25-100 times more potent than vitamins C and E. One cup of green tea provides 10-40 mg of polyphenols and has antioxidant effects greater than a serving of broccoli, spinach, carrots, or strawberries. The high antioxidant activity of green tea makes it beneficial for protecting the body from oxidative damage due to free radicals. Research shows that green tea may help the arterial wall by reducing lipids. Green tea can protect against experimentally induced DNA damage, and slow or halt the initiation and progression of undesirable cell colonies. Studies show evidence that green tea provides immunoprotective qualities, particularly in the case of patients undergoing radiation or chemotherapy. White blood cell count appear to be maintained more effectively in patients consuming green tea compared to non-supplemented patients.

Green tea is manufactured from fresh, unfermented tea leaves; the oxidation of catechins is minimal, and hence they are able to serve as antioxidants. Researchers believe that catechin is effective because it easily sticks to proteins, blocking bacteria from adhering to cell walls and disrupting their ability to destroy them. Viruses have ‘hooks’ on their surfaces and can attach to cell walls. The catechin in green tea prevents viruses from adhering and causing harm. Catechin reacts with toxins created by harmful bacteria (many of which belong to the protein family) and harmful metals such as lead, mercury, chrome, and cadmium.

Tannin in green tea is mostly catechin and is a key component in its taste providing the astringency. The amount of catechin tends to increase as the season progresses. Spring tea (first crop) contains 12-13% catechin (13-17% as tannin) while summer tea (third crop) contains 13-14% (17-21% as tannin). If leaf order is compared, younger leaves include more catechin than mature ones. First leaves contain 14%, second 13%, third 12%, and fourth 12%.

Catechin, has been found to outperform Vitamin C and beta-carotene ten times in scavenging the alkyl peroxyl radical. One study found green tea polyphenols to be more potent antioxidants than Vitamin C, Vitamin E, rosemary extract, and even curcumin in some systems.

Types of Catechins

Green Tea Catechins Polyphenol Catechins Powder are a type of polyphenol and are the main astringency component in green tea, There are four main types of catechins found in green tea leaves.

  1. Epicatechin
  2. Epigallocatechin
  3. Epicatechin gallate
  4. Epigallocatechin gallate

In addition, during the manufacturing process for tea beverages, owing to heat processing, some catechins change form.

  1. Epicatechin → Catechin
  2. Epigallocatechin → Gallocatechin
  3. Epicatechin gallate → Catechin gallate
  4. Epigallocatechin gallate → Gallocatechin gallate

Green Tea Catechins oxidize extremely easily. In green tea, since the process for making crude tea involves halting the action of oxidizing enzymes, most of the catechins remain unoxidized. In oolong and black teas, the action of oxidizing enzymes produces oxidized polymers (complex catechins, such as theaflavins and thearubigins).Unlike catechins, which are colorless in aqueous solution, these oxidized catechins become orange or red. This is what gives oolong and black teas their distinctive reddish color.

Ichibancha has a catechin content of approximately 12-14%, while Nibancha has a catechin content of approximately 14-15%. The catechin content of young shoots (first or second leaf) is higher than mature leaves (third or fourth leaf). In teas that have been grown using cover culture to block out most light, such as Gyokuro, the generation of catechins is suppressed, giving such teas a lower catechin content than Sencha (approximately 10% as polyphenols).

Green Tea Catechins is produced in the roots of the tea bushes, and migrates to the leaves. It is broken down when exposed to light, producing ethylamino, which in turn changes into catechin. Since theanine does not break down if it is not exposed to light, teas high in theanine and low in catechin may be produced by using covered culture.

Natural Green Tea Catechins Benefits:

  1. Control of obesity.
  2. Green Tea Catechins Polyphenol Catechins Powder have a variety of prevention and treatment of cardiovascular disease, cancer prevention and other functions.
  3. Control blood pressure and blood sugar, lower cholesterol.
  4. Reducing capillary permeability, antidiarrheal, hemostatic, antiviral, fungicidal, ACE inhibition and prevention of gastric ulcer etc.
  5. Prevention of tooth decay.
  6. Used as antioxidants.
  7. Be used for dyes and tanning industry.

The Best Green tea extract Catechins Powder

TIZAN enjoys long term relationships with our clients because we focus on customer service and providing great products. If you are interested in Catechins, we are flexible with the customization of orders to suit your specific need and our quick lead time on orders guarantees you’ll have great tasting Green Tea Catechins Powder on-time.

We also focus on value-added services. We are available for service questions and information to support your business.

Why Choose TIZAN Green tea extract Catechins Powder | Tea Polyphenols?

TIZAN specialize in Green tea extract Catechins Powder | Tea Polyphenols for several years, we supply products with competitive price, and our product is of the highest quality and undergoes strict, independent testing to ensure that it is safe for consumption around the world.

Where to Buy Green tea extract Catechins Powder | Tea Polyphenols?

Just send email to [email protected], or submit your requirement in bottom form, we are of service at any time!


Normal Catechins Specifications Sheet
Tea PolyphenolsCatechinsEGCGCaffeinePbAs
≥ 30%≥ 15%≥ 5%≤ 8%≤ 5 ppm≤ 2 ppm
≥ 40%≥ 20%≥ 8%≤ 8%≤ 5 ppm≤ 2 ppm
≥ 50%≥ 30%≥ 12%≤ 12%≤ 5 ppm≤ 2 ppm
≥ 80%≥ 60%≥ 30%≤ 12%≤ 2 ppm≤ 1 ppm
≥ 90%≥ 65%≥ 40%≤ 12%≤ 1 ppm≤ 1 ppm
≥ 90%≥ 70%≥ 40%≤ 1%≤ 1 ppm≤ 1 ppm
≥ 95%≥ 70%≥ 45%≤ 10%≤ 1 ppm≤ 1 ppm
≥ 95%≥ 75%≥ 45%≤ 1%≤ 1 ppm≤ 1 ppm
≥ 95%≥ 75%≥ 50%≤ 6%≤ 1 ppm≤ 1 ppm
≥ 98%≥ 75%≥ 45%≤ 8%≤ 1 ppm≤ 1 ppm
≥ 98%≥ 80%≥ 50%≤ 1%≤ 1 ppm≤ 1 ppm
≥ 98%≥ 80%≥ 60%≤ 1%≤ 1 ppm≤ 1 ppm
Low Pesticide Residues Catechins Specifications Sheet
Tea PolyphenolsCatechinsEGCGCaffeinePbAs
≥ 30%≥ 15%≥ 5%≤ 8%≤ 5 ppm≤ 2 ppm
≥ 40%≥ 20%≥ 8%≤ 8%≤ 5 ppm≤ 2 ppm
≥ 50%≥ 39%≥ 12%≤ 10%≤ 5 ppm≤ 2 ppm
≥ 80%≥ 60%≥ 30%≤ 12%≤ 2 ppm≤ 1 ppm
≥ 90%≥ 65%≥ 40%≤ 12%≤ 1 ppm≤ 1 ppm
≥ 95%≥ 75%≥ 45%≤ 1%≤ 1 ppm≤ 1 ppm
≥ 98%≥ 80%≥ 50%≤ 1%≤ 1 ppm≤ 1 ppm
≥ 98%≥ 80%≥ 60%≤ 1%≤ 1 ppm≤ 1 ppm
Remove Bitterness Catechins Specifications Sheet
≥ 40%≥ 25%≥ 12%≤ 1%≤ 1 ppm≤ 1 ppm
≥ 60%≥ 30%≥ 20%≤ 1%≤ 1 ppm≤ 1 ppm
Shelf Life:

2 Years


Store in cool and dry place, keep away from light.

  • 25Kg/Fiber Drum, double plastic bag inside, with carton outside.
  • Sample – aluminum foil bag vacuum packing.

Green tea components and effect


Decreases blood cholesterol

Body fat reduction

Cancer prevention effect


Tooth decay prevention, antibacterial effect

Anti-influenza effect

Inhibits high blood pressure

Anti-hyperglycemic effect

Bad breath prevention (deodorizing effect)


Increases alertness

(decreases tiredness and drowsiness)

Increases stamina

Hangover prevention

Mild diuretic


Neuronal cell protection

Relaxation effect (promotes α wave production)

Lowering of blood pressure

VitaminsVitamin C

Maintenance of healthy skin and mucus

membrane (collagen formation)


Vitamin B2

Maintenance of healthy skin and

mucus membrane

Folic acid

Prevention of fetal neural tube defects (NTD)

Prevention of arterial sclerosis

β-caroteneMaintenance of nighttime vision
Vitamin EAntioxidant

Lowering of blood pressure

Anti-influenza effect

FluorinePrevention of tooth decay
γ-aminobutyric acid (GABA)Lowering of blood pressure
Minerals (Potassium, calcium, phosphorus, manganese, etc.)Biological regulators
ChlorophyllDeodorizing effect

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