What temperature causes EGCG to convert to CGC - I am trying to find the optimum brewing temperature of green tea so that the most amount of catechins are released but EGCG is not eperimized to CGC?
A scientific article about EGCG being heat-eperimized to CGC in green tea shows that at 120 degrees C about 50% of the catechins are eperimized: (CGC actually has stronger… cholesterol reducing properties than EGCG) The Wikipedia entry can be found in the related links below. And the original article it cites is also available in the related links. Although I cannot find what the minimum temperature eperimization occurs at, the lower and hottest recommended green tea brewing temperatures are 61°C to 69°C and 81°C to 87°C. See the Wikipedia - green tea -steeping related link below. Adding citrus juice or Vitamin C to green tea can increase intestinal catechin absorption by 5 times: Please see the Green Tea with Vit. C Related link below. Finally white tea, which is essentially less processed green tea, has more EGCG and other catechins. See the Related link below. (MORE)