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. 2024 Mar 7;19:2395–2407. doi: 10.2147/IJN.S439476

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© 2024 Chang et al.

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The antioxidant tests for astaxanthin. (a) The DPPH scavenging ability of astaxanthin. The blank control group was ddH₂O. The positive control group was 100 μM vitamin C. (b) The ABTS scavenging ability of astaxanthin. The blank control group was ddH2O. The positive control group was EDTA. (c) The reducing power of astaxanthin. The blank control group was ddH₂O. The positive control was BHA. (d) The IC₅₀ of DPPH scavenging ability in astaxanthin. (e) The IC₅₀ of ABTS scavenging ability in astaxanthin. *P < 0.05; **P < 0.01; ***P < 0.005 vs the control group.