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| In vitro antioxidant activity of walnut astaxanthin oil blend |
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| DOI： |
| KeyWord:Key words：astaxanthin oil walnut oil walnut astaxanthin oil blend antioxidant activity |
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| Abstract: |
| Abstract：The in vitro antioxidant activity of walnut astaxanthin oil blend(walnut oil +2% astaxanthin oil) was studied by determining the scavenging capacity of DPPH·, hydroxyl radical (·OH) and superoxide anion radical (O-2·), reducing capcity and Fe2+ chelating capacity of walnut astaxanthin oil blend with tert-butylhydroquinone(TBHQ) as positive control. The results showed that scavenging capacity of walnut astaxanthin oil blend on DPPH·, O-2· and ·OH, reducing capacity and Fe2+ chelating capacity increased with the increase of walnut astaxanthin oil blend mass concentration, and its scavenging capacity on DPPH·, O-2·, ·OH were superior to the pure walnut oil. The half inhibitory mass concentration of walnut astaxanthin oil blend on DPPH·, O-2·, and ·OH were 8.25, 081, 1.30 mg/mL, respectively. The reducing capacity of walnut oil+TBHQ was the strongest, followed by walnut astaxanthin oil blend and pure walnut oil. The walnut astaxanthin oil blend showed the strongest Fe2+ chelating capacity, followed by pure walnut oil and walnut oil+TBHQ. The results indicated that the antioxidant activity of walnut astaxanthin oil blend was higher than that of pure walnut oil in vitro. |
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