In the lipophilic DPPH• assay, BDZ exhibited a slightly higher scavenging rate (81.02 ± 3.19%) compared with G2R (78.17 ± 3.38%), but the difference was small (about 3 percentage points) and did not reach statistical significance ( p > 0.05). 3.7.
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Untargeted metabolomics reveals enhanced antioxidant capacity and key bioactive components of Gougunao No. 2 black tea.
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Differences between the two cultivars were evaluated using two-tailed Student’s t -tests in IBM SPSS Statistics (v26.0; IBM Corp., Armonk, NY, United States), with p < 0.05 considered significant and p < 0.01 considered highly significant.