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《JOURNAL OF NORTHEAST AGRICULTURAL UNIVERSITY》 1998-03
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THE FREE RADICAL-SCANVENGING ACTIVITY OF TEA EXTRACTS

Zhao Xinhuai (Northeast Agricultural University Harbin 150030 PRC)  
The free radical-scavenging activity of tea extracts was assaied in vitro. It was shown from the experimental data that the radical-scavenging activity of green tea extract was superior to that of black tea extract and cold be decreased susceptibly by heating the extract or treating it with activated carbox and diatomite for there were some unstable constituents in the extract. Moreover, heating the extract or treating it with diatomite had less effect on the free radical-scavenging activity of black tea extract.
【CateGory Index】: Q493.9,
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