食品科学 ›› 2012, Vol. 33 ›› Issue (17): 94-97.

• 基础研究 • 上一篇    下一篇

条斑紫菜藻蓝蛋白的分离纯化及其抗衰老作用研究

赵艳景,汤云成   

  1. 淮海工学院 江苏省海洋生物技术重点建设实验室
  • 收稿日期:2011-07-13 修回日期:2012-07-27 出版日期:2012-09-15 发布日期:2012-11-09
  • 通讯作者: 赵艳景 E-mail:zhaoyanjing1976@163.com
  • 基金资助:

    江苏省基础研究计划(自然科学基金)(BK2009641)

Separation, Purification and Anti-Aging Activity of Phycocyanin from Porphyra yezoensis

  • Received:2011-07-13 Revised:2012-07-27 Online:2012-09-15 Published:2012-11-09

摘要: 目的:分离纯化条斑紫菜藻蓝蛋白并对其进行抗衰老作用的研究。方法:以盐析沉淀法和Sephadex G-200凝胶过滤层析纯化条斑紫菜藻蓝蛋白,并对其热稳定性和酸碱稳定性进行研究。采用D-半乳糖致亚急性小鼠衰老模型,研究藻蓝蛋白的抗衰老作用。结果:在常温下,40%饱和度的硫酸铵盐析条件下,紫菜藻蓝蛋白纯度达到最大值1.73;紫菜藻蓝蛋白在30℃时、中性溶液环境时稳定性良好;藻蓝蛋白处理后均能显著提高衰老模型小鼠的胸腺指数、脾脏指数和血清中的SOD活性(P<0.05,P<0.01),显著降低血清中的MDA含量(P<0.05,P<0.01)。结论:紫菜藻蓝蛋白具有较强的抗衰老作用。

关键词: 条斑紫菜, 藻蓝蛋白, 稳定性, 抗衰老, 胸腺指数, 脾脏指数

Abstract: Objective: To isolate and purify phycocyanin from Porphyra yezoensis and explore the anti-aging activity of phycocyanin. Methods: Phycocyanin from Porphyra yezoensis was purified by salting-out and Sephadex G200 chromatography. The stability of phycocyanin under various pH and temperature conditions was also investigated. D-Galactose induced mouse models of subacute ageing were established and used to study the anti-ageing function of phycocyanin from Porphyra yezoensis. Results: Phycocyanin with the highest purity (1.73) was obtained by salting out with 40% (NH4)2SO4 at room temperature. The hycocyanin extract was stable at 30 ℃ and pH 7.0. Its oral administration resulted in a significant increased in SOD activity, thymus index and spleen index in aging mouse models (P<0.05, P<0.01), and a significant reduction in serum MDA level (P<0.05, P<0.01). Conclusion: Phycocyanin from Porphyra yezoensis has excellent anti-aging activity.

Key words: Porphyra yezoensis, phycocyanin, stability, anti-aging, thymus index, spleen index

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