虾青素自由基清除和细胞抗氧化剂特性

2017/03/01   下载量： 1 次

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应用领域 生物产业
检测样本 其他
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参考标准 暂无

采用立陶宛Ekspla公司的NL240型半导体泵浦的纳秒激光器泵浦染料激光器研究虾青素自由基清除和细胞抗氧化剂特性。

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Astaxanthin is a coloring agent which is used as a feed additive in aquaculture nutrition.
Recently, potential health benefits of astaxanthin have been discussed which may be partly related
to its free radical scavenging and antioxidant properties. Our electron spin resonance (ESR)
and spin trapping data suggest that synthetic astaxanthin is a potent free radical scavenger in
terms of diphenylpicryl-hydrazyl (DPPH) and galvinoxyl free radicals. Furthermore, astaxanthin
dose-dependently quenched singlet oxygen as determined by photon counting. In addition to free
radical scavenging and singlet oxygen quenching properties, astaxanthin induced the antioxidant
enzyme paroxoanase-1, enhanced glutathione concentrations and prevented lipid peroxidation
in cultured hepatocytes. Present results suggest that, beyond its coloring properties, synthetic
astaxanthin exhibits free radical scavenging, singlet oxygen quenching, and antioxidant activities
which could probably positively affect animal and human health.

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北京欧兰科技发展有限公司
金牌会员 丨 第17年
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