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Chinese Agricultural Science Bulletin ›› 2018, Vol. 34 ›› Issue (2): 107-112.doi: 10.11924/j.issn.1000-6850.casb16120045

Special Issue: 园艺

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Comparison of Antioxidative Activity in Vitro Among Six Kinds of Tea Made from the Same Raw Material

彭影琦 and   

  • Received:2016-12-08 Revised:2017-01-13 Accepted:2017-02-09 Online:2018-01-23 Published:2018-01-23

Abstract: The antioxidative activity in vitro among six kinds of tea and fixed sample with the same dried tea quality made from one bud and two leaves of BiXiangZao in spring were compared in order to provide scientific reference to the developing of new tea products and healthy consumption. The results showed that reducing power and the capacity of removing DPPH free radical、Nitrate free radical、OH free radical and Superoxide anion radical of all samples increased with infusion concentration increasing. The IC50 of Fixed sample、Green tea、Yellow tea、Dark tea、Oolong tea、White tea and Black tea to DPPH. were 0.017、0.019、0.019、0.020、0.021、0.022 and 0.038mg tea extract /ml; The IC50 of Green tea 、Fixed sample、Oolong tea、Dark tea、White tea、Yellow tea and Black tea to .OH were 1.438、1.695、2.988、4.163、4.606、4.881 and 6.847mg tea extract /ml; The IC50 of Fixed sample、

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