PRODUCT DESCRIPTION
Green tea extract powder is a concentrated active compound obtained from the leaves of Camellia sinensis. Its key constituents include tea polyphenols, caffeine, aromatic oils, moisture, minerals, pigments, carbohydrates, proteins, amino acids, and various vitamins. Tea polyphenols are renowned for their powerful antioxidant and free-radical-scavenging abilities. Notably, they significantly reduce serum total cholesterol, triglycerides, and low-density lipoprotein cholesterol in individuals with hyperlipidemia, while helping to restore and protect vascular endothelial function. The lipid-lowering effect of tea polyphenols is also one of the primary reasons tea supports weight management and helps combat obesity.
Plant Extract Supply provides premium Green Tea Extract Powder standardized to 50%–98% tea polyphenols. Contact us to request a sample.
QUICK DETAILS
- Specification: 50%–98%
- Active Ingredient: Tea Polyphenols
- OEM Service: Tailored to customer requirements
- Sample: Available
- Place of Origin: China
- Test Method: HPLC
- Heavy Metals: ≤ 10.0 mg/kg
- Pb: ≤ 2.0 mg/kg
- As: ≤ 1.0 mg/kg
- Total Bacteria: ≤ 1000 cfu/g
How Are Polyphenols Extracted from Green Tea?
Step 1: Preparation
Fresh green tea leaves are first dried and crushed to increase surface area, which promotes efficient extraction. The material then undergoes a gentle heat treatment—often steaming or pan-firing—to deactivate enzymes that could otherwise oxidize and degrade the polyphenols. This step is essential to preserve the integrity of catechins and other valuable phytochemicals.
Step 2: Extraction
Once prepared, the leaves enter the extraction phase. Several methods can be employed:
- Solvent Extraction: Organic solvents like ethanol or methanol dissolve the polyphenols, separating them from less soluble components. The extract is filtered and concentrated.
- Hot Water Extraction: A traditional approach where leaves are steeped in hot water at 60°C to 90°C, allowing catechins and water-soluble compounds to infuse. The liquid is then filtered to remove residual plant matter.
- Supercritical Fluid Extraction: Carbon dioxide in its supercritical state—between gas and liquid—works as an extraction medium. This method is increasingly popular due to its high efficiency and ability to produce solvent-free extracts, making it more environmentally sound.
Step 3: Concentration and Purification
The polyphenol-rich solution is concentrated, typically through evaporation, to remove the solvent or water, yielding a dense extract. To isolate specific polyphenols or achieve higher purity, advanced techniques such as liquid chromatography or membrane filtration are often used.
Functions of Green Tea Extract Tea Polyphenols
- Helps lower blood pressure, blood sugar, and blood lipids.
- Scavenges free radicals and provides anti-aging benefits.
- Strengthens immune function and helps guard against colds.
- Offers protection against radiation and exhibits anticancer properties, inhibiting the proliferation of cancer cells.
- Delivers antibacterial, sterilizing, and deodorizing effects.
Applications
- Cosmetic field
- Food industry
- Pharmaceutical sector
FAQ
Q: Why choose us?
A: We are a professional manufacturer with more than 20 years of experience and a dedicated expert team. Our products are 100% natural extracts derived from superior-quality herbal raw materials. We provide free samples for most in-stock products and hold certifications including ORGANIC, KOSHER, HALAL, ISO9001, and ISO22000.
Q: What is the minimum order quantity and lead time?
A: For most products, the MOQ is 25 kg; a few items allow a 100 g minimum. Lead time is typically 2–5 days after payment is received (excluding holidays and weekends).
Q: Do you offer discounts?
A: Yes, better pricing is available on selected products for eligible customers.
Q: How do you handle quality complaints?
A: Our failure rate is extremely low. Should any batch not meet customer specifications, we promptly provide replacement goods.
Q: Are all goods tested before delivery?
A: Absolutely. Every shipment undergoes thorough testing prior to dispatch.
Q: What payment methods do you accept?
A: Sample orders can be paid via PayPal or T/T. Bulk orders are settled by T/T.
Q: How are the products packaged?
A: Standard packaging is 25 kg per drum with an inner plastic bag.
