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Green Tea Extract Liquid

Molecular Formula: C22H18O11

Formula Weight: 0

ZSpharmac: Green Tea Extract Liquid Raw Material Supplier

Product Name: Green Tea Extract Liquid
CAS No: 
Purity: 99%

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Basic Info

Product Name:Green Tea Extract Liquid
Other Names:Green Tea Extract
Place of Origin:Shandong, China
Brand Name:ZSpharmac
Type:Cosmetic Raw Materials
Appearance:Yellow-Green Liquid
EINECS No.:283-519-7
Provide:Green Tea Extract Liquid MSDS;
Green Tea Extract Liquid COA

What is Green Tea Extract Liquid?

Green tea extract is a prominent component found in common green tea in my country. It is abundant in nutrients such as tea polyphenols, catechins, caffeine, amino acids, vitamins, and other essential substances. Its high concentration of hydroxyl groups contributes to its excellent antioxidant properties. Free radicals are biochemical byproducts generated by the human body during its metabolic and life processes. Excessive levels of free radicals can lead to various diseases and visible signs of aging, such as sagging skin. Green tea extract effectively scavenges DPPH free radicals, hydroxyl free radicals, and superoxide anions. When incorporated into cosmetics, it acts as a potent antioxidant, neutralizing free radicals and preventing their harmful reactions in the body. This natural extract is both safe and highly reactive, making it a versatile ingredient in cosmetic formulations.

Green Tea Extract Liquid Chemical Composition

1. Antioxidant properties
Green Tea Extract Liquid possesses the ability to directly neutralize reactive oxygen free radicals. The tea polyphenols found in the extract contain phenolic hydroxyl groups, which can provide active hydrogen to deactivate free radicals. Additionally, the catechol structure present in the tea polyphenols enhances their stability and makes them effective hydrogen-donating free radical inhibitors. Furthermore, tea polyphenols can inhibit lipid peroxidation, chelate metal ions, and activate the body’s natural antioxidant defense system.

2. Anti-cancer and anti-mutation effects
Green Tea Extract Liquid has been shown to inhibit various animal tumors induced by carcinogens, including tumors in the skin, lungs, stomach, esophagus, colon, and duodenum. The mechanisms behind its anti-cancer effects are multifaceted and include inhibiting cancer cell proliferation, blocking carcinogen production, antioxidant effects, anti-mutation effects, influencing the immune system, and more. Among the active ingredients in the extract, CG and ECG are particularly important in exerting anti-cancer and anti-mutation effects.

3. Antimicrobial and intestinal health benefits
The catechin compounds in Green Tea Extract Liquid demonstrate bactericidal and inhibitory effects against several harmful bacteria such as Staphylococcus aureus, Vibrio cholerae, and Escherichia coli. Moreover, the extract promotes the growth and proliferation of beneficial bacteria in the human intestine, such as bifidobacteria. These beneficial bacteria not only produce essential nutrients like B vitamins but also inhibit the growth of harmful bacteria.

4. Antiviral effects
Tea catechins have been found to inhibit influenza viruses A and B. Even at low concentrations of 0.01 to 0.02 mg/ml, EGCG and ECG exhibit potent inhibitory effects on HIV.

5. Weight management and prevention of atherosclerosis
Tea catechins, particularly EGCG, can inhibit cholesterol synthesis in cells and have been shown to lower LDL cholesterol while increasing HDL cholesterol levels in the blood. LDL cholesterol promotes atherosclerosis, while HDL cholesterol helps prevent and improve it.

6. Blood pressure regulation
Tea catechins, especially ECG and EGCG, have a significant inhibitory effect on angiotensin I converting enzyme, which plays a role in regulating blood pressure.

7. Dental health benefits
Studies conducted in the late 1980s identified polyphenolic compounds in tea as the key substances responsible for its anti-caries effects, helping to strengthen teeth and prevent tooth decay.

8. Additional benefits
Green Tea Extract Liquid has been associated with various other health benefits, including its hypoglycemic effect, anti-radiation properties, anti-allergic effects, enhancement of immune function, and potential for preventing aging.

Green Tea Extract Liquid Analysis Method

1. Thin Layer Chromatography
To prepare the sample liquid, take 0.1g of Green Tea Extract Liquid and dissolve it in 10ml of methanol. Filter the solution and use the filtrate for spotting.
For the chromatographic process, use a 0.5% CMC-Na silica gel G plate that has been activated at 105°C for 30 minutes. The developing agent should be a mixture of chloroform, methanol, and formic acid in a ratio of 8:2:0.1. The spread distance should be 16cm. The chromogen used is a 1% hydrochloric acid 0.05% p-dimethylaminobenzaldehyde ethanol solution.
The result of the chromatography will show purple spots indicating the presence of catechins.

2. Determination of Tea Polyphenols Content in Green Tea Extract using the Iron Tartrate Method
(1) Chemical Reagents and Equipment
Prepare a ferrous tartrate solution by dissolving 1g of ferrous sulfate (FeSO4.7H2O) and 5g of potassium sodium tartrate (KnaC4H4O6.4H2O) in water to make a 1000ml solution.
Prepare a pH 7.5 phosphate buffer by dissolving 11.876g of disodium hydrogen phosphate (Na2HPO4·2H2O) and 9.078g of potassium dihydrogen phosphate (KH2PO4) in water separately. Mix the two solutions in a ratio of 85:15 (V/V) to obtain a buffer solution with pH 7.5.

(2) Determination Method
Accurately weigh 200mg of the green tea extract and dissolve it in a 100ml volumetric flask using steam-distilled water. Adjust the volume to the mark and shake well. Take 1ml of the extraction solution and place it in a 25ml volumetric flask. Add 4ml of distilled water and 5ml of the ferrous tartrate solution. Adjust the volume to the mark with pH 7.5 phosphate buffer and shake well. Use a reagent blank solution as a control and measure the absorbance at a wavelength of 540nm. The content of tea polyphenols can be calculated using the following formula: tea polyphenols% = 1.957AV1/0.50×1000MV2×100
Where A is the absorbance of the test solution, V1 is the volume of the test sample extraction liquid (100ml), V2 is the volume of liquid used in the measurement (1ml), and M is the volume of the test sample (g). The value 1.957 represents the amount of tea polyphenols equivalent to 1ml of test sample extract when the absorbance is equal to 0.50. Some also use an improvement coefficient of 1.44.

Note: This method is suitable for products with tea polyphenol content ≤50.0%. It is recommended for the content determination of pure small-leaf Green Tea Extract Liquid with an EGCG/ECG (content) greater than 4.

Green Tea Extract Liquid Preparation Method

Use clear water as the solvent and heat it to 90°C using a water bath for extraction. Repeat the extraction process multiple times and combine the extracts. Then, extract the combined solution with an equal volume of chloroform. After separating the chloroform phase, perform multiple extractions using ethyl acetate. Recover the solvent from the ethyl acetate phase and concentrate it. Dry the concentrated solution and freeze-dry it. Subsequently, repeatedly recrystallize it with deionized water to obtain the desired product.

In later developments, a different method was introduced. Mix 150 ml of deionized water with 100 ml of the concentrated solution at a ratio of 1:1.5. Stir the mixture and allow it to settle to remove chlorophyll and oils. Place the solution in the refrigerator overnight. Transfer the supernatant and continue vacuum concentration until the volume is reduced by half, resulting in a concentrated solution. Transfer the concentrated solution into a separatory funnel and perform multiple extractions with a small amount of ethyl acetate. Recover the solvent from the extract using decompression and vacuum it into dry powder to obtain the final product. This process method is cost-effective, non-toxic, pollution-free, and provides a higher yield compared to traditional processes.

Contact Us

About Products:
If you need the cosmetic raw material Green Tea Extract Liquid, please contact our service staff directly, we will provide you with high-quality products at the best price.
As an experienced Green Tea Extract Liquid manufacturer and supplier, our company, ZSpharmac will provide Green Tea Extract Liquid raw materials to customers around the world for a long time.
Over the years, the company has adhered to the spirit of “integrity management, strict quality control, and customer first” and has won unanimous praise from customers at home and abroad.

Company Profile and Corporate Culture

Company Profile:

ZhiShang Chemical is owned by ZhiShang Group is a professional new-type chemicals enterprise combined into research and development, production and sales .

The company’s competitive product is pharmaceutical raw materials and intermediates (especially carbohydrate derivatives Series), In recent years, the company has made a major breakthrough in food and feed additives, plant extraction, industrial chemicals industry .

The company insists on the spirit of “sincere management, strict quality control, customer as god” , get consistent high praise from customers at home and abroad.

Corporate Culture:

Help China Chemicals to benefit the happiness of human life
Become the most trusted chemical supplier in the world
Striver – oriented, enrich employees, customer first, deep service, seek development
Be prepared for danger in times of peace, forge ahead actively, unity and cooperation, and be brave to fight

About Us

The production base is located in Zhangqiu chemical industry park and Tai’an high-tech chemical industry park. laboratory and workshop in strict accordance with the GMP standard and the product fit national ISO9001 and ISO2000 standards.

“Zhishang” products are exported to Europe, North and South America, the Middle East, Asia Pacific and Africa area, so as to establish a long-term and stable cooperation relationship with customer in the world.

Company Info
  • Business Type: Manufacturer
  • Product Range: Cosmetic raw materials
  • Products/Service:Cosmetic raw materials (flavors and fragrances,antioxidant products, moisturizing and hydrating, whitening agents, cosmetic additives)
  • Total Employees: 51~100
  • Capital (Million US $): 10000000RMB
  • Year Established: 2016
Production Capacity
  • No. of Production Lines : 8
  • No. of QC Staff : 5 -10 People
  • OEM Services Provided : yes
  • Factory Size (Sq.meters) : 3,000-5,000 square meters
  • Certificate: ISO9001 , CE , GMP , API , MSDS
  • Factory Location : Diao Town Industry Park, Zhangqiu City, Jinan City, Shandong Province, China.


Pre-Sales Service

* Prompt reply and 24 hours online, professional team to provide best price and high quality product.

* Sample testing support.

* Every batch of products will be tested to ensureits quality.

*The packing also can be according the customers` requirment.

*Any inquiries will be replied within 24 hours.

*we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate. If your markets have any special requirements, let us know.


After-Sales Service

*The fact of logistics information monitoring.

* Any questions about the product can be consulted at any time.

*Product has any problem can return.


Do you accept sample order?

We will make samples before mass production, and after sample approved, we’ll begin mass production. Doing 100% inspection during production, then do random inspection before packing.



You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.

What’s your MOQ?

Our MOQ is 1kg. But usually we accept less quantity such as 100g on the condition that sample charge is 100% paid.

Do you supply product report?

Yes. We’ll give you product analysis report before shipping.

  Is there a discount?

Different quantity has different discount.


1. ≤50kg, Express delivery recommended, usually called as DDU service;

2. ≤500kg, Air shipping recommended, usually called as FOB, CFR, or CIF service;

3. >500kg, sea shipping recommended, usually called as FOB, CFR, or CIF service;

4. For high value products, please select air shipping and express delivery for safe.

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