食品科学 ›› 2006, Vol. 27 ›› Issue (5): 113-118.

• 基础研究 • 上一篇    下一篇

乳铁蛋白体外和体内铁结合能力的研究

 卢蓉蓉, 孙震, 许时婴   

  1. 江南大学食品学院; 食品科学与安全教育部重点实验室
  • 出版日期:2006-05-15 发布日期:2011-09-16

Iron-Binding Capacity of Lactoferrin in vitro and in vivo

 LU  Rong-Rong, SUN  Zhen, XU  Shi-Ying   

  1. 1.School of Food Science and Technology, Southern Yangtze University, Wuxi 214036, China; 2.Key Laboratory of Food Science and Safety; Ministry of Education, Wuxi 214036, China
  • Online:2006-05-15 Published:2011-09-16

摘要:  采用超滤-离子交换色谱法制备的乳铁蛋白的铁结合能力为87.7%,铁饱和度为15.1%。当pH值为7.5,NaHCO3浓度为100mmol/L时,铁结合能力最强。采用低强度的巴氏杀菌可以保持乳铁蛋白的铁结合性能。SD大鼠的动物试验表明,50μg/g·d和250μg/g·d的乳铁蛋白剂量具有显著的升高血红蛋白浓度的作用。乳铁蛋白改善缺铁性贫血的最小有效作用剂量为50μg/g·d。

关键词: 乳铁蛋白, 铁结合能力

Abstract:  The iron-binding capacity of lactoferrin was 87.7% produced by ultrafiltration and strong cation exchange chromatography. Its iron saturation point was 15.1%. Lactoferrin exhibited the strongest iron binding capacity at pH7.5 and 100 mmol/L of bicarbonate. In vivo study with SD rats showed that LF could significantly increase the concentration of hemoglobin at doses 50μg/g·d and 250μg/g·d. The low marginal dose level of LF was 50μg/g·d.

Key words:  , lactoferrin; iron-binding capacity;