Qingdao Oriental Tongxiang(China)/Life Bridge International(USA)
Appearance:White or almost white, crystalline powder
Certificate: ISO9001, ISO14001, Kosher, HACCP and Chinese Health Food GMP
Because the active compounds,the catechins,Green Tea Extract are known to possess potent antioxidant activity health effects by protecting the body from the damaging effects of oxidative damage from free radicals.
A number of chronic disease states have been associated with free radical induced oxidative damage,including cancer heart disease,and suppressed immune function and accelerated aging.
Types of green tea extracts
During the strong infusion green tea leaves are processed by soaking in the aqueous solution of alcohol (the aspect content is about 2% w/w)
To obtain soft extracts, the solution made by strong infusion beforehand is further concentrated to 20–25% (the catechin content is about 20% w/w).
After the strong infusions have been concentrated to 40–50% solids (the catechin content is above 25% w/w),they are sprayed and then become dehydrated extract and powder.The leftovers - water content, which is less than 5% w/w, and the extract - are usually processed as a powder containing inert processing aids to become suitable for a variety of uses (tablets, capsules, dry mixes, etc.).
Partly purified extracts
Further purification processes, for example, solvent extraction or column chromatography techniques, as well as new techniques such as membrane extraction and separation, are utilized in order to acquire a higher content of tea catechins, epigallocatechin (EGC), epicatechin gallate (ECG) and epicatechin (EC). Of which, EGCG accounts for more than 40% of the total content.
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