Description
Brand: GU ZHI YUAN
Oolong tea is produced by allowing the tea leaves to?oxidize?for a short time after picking.
Oxidation is the process which makes the leaves turn dark on exposure to oxygen.?
Oolong is semi-oxidized; black tea is fully oxidized; and green tea is un-oxidized.
Fresh tea leaves are high in catechins.
Processing the tea reduces these levels, so the more the tea is oxidized the lower the catechin levels.
This means that white tea has the highest levels of catechins closely followed by green tea.
Catechins are the media darling of green tea promoters and usually receive the most coverage when discussing the health benefits of tea.
There is one point, however, which is often overlooked: As the levels of catechins decrease during oxidation, the levels of theaflavins and thearubigins increase.
These two substances are found in higher concentrations in oolong and black tea than in green tea and may have anti-allergy, anti-inflammatory, and anti-cancer properties.
A 2001 Chinese study indicated that the antioxidant properties of green tea and black tea are equal.
So it appears that oxidation does not eliminate the health properties of tea, but simply reduces one type of antioxidant while increasing other health-promoting compounds.
Dimension:
weight:300g
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