食品科学

• 工艺技术 • 上一篇    下一篇

大孔树脂DA201-C对猪血红蛋白ACE抑制肽吸附性能的研究

邓惠玲,郑 炯,阚建全   

  1. 1.西南大学食品科学学院,重庆 400715;2.重庆市农产品加工及贮藏重点实验室,重庆 400715
  • 出版日期:2013-06-25 发布日期:2013-06-17

Macroporous Resin Adsorption for Separation and Purification of ACE Inhibitory Peptides from Porcine Hemoglobin

DENG Hui-ling,ZHENG Jiong,KAN Jian-quan   

  1. 1. College of Food Science, Southwest University, Chongqing 400715, China;
    2. Chongqing Key Laboratory of Produce Processing and Storage, Chongqing 400715, China
  • Online:2013-06-25 Published:2013-06-17

摘要:

以猪血红蛋白的胃蛋白酶水解液为原料,通过静态和动态实验,对适合分离纯化猪血红蛋白ACE抑制肽的大孔树脂进行筛选,并确定最佳的分离纯化工艺参数。结果表明:DA201-C分离纯化猪血红蛋白ACE抑制肽的效果最好;动态实验最佳工艺参数为上样质量浓度40mg/mL、pH5.0、上样流速0.5mL/min、上样量60mL;洗脱液乙醇体积分数75%,洗脱流速1.0mL/min,在此条件下,分离得到的猪血红蛋白ACE抑制肽样品的IC50为0.87mg/mL。同时,对DA201-C大孔树脂进行静态吸附-解吸实验和动态吸附-解吸实验的进行了比较,结果表明:大孔树脂静态吸附率为59.4%,大于其动态吸附量48.1%。

关键词: 大孔树脂, 吸附, 猪血红蛋白, DA201-C, ACE抑制肽

Abstract:

Based on static and dynamic adsorption performance, DA201-C type macroporous resin was selected as a more
appropriate carrier to separate and purify ACE inhibitory peptides from the pepsin hydrolysate of porcine hemoglobin. The
optimal process parameters for dynamic adsorption and desorption were determined as follows: 60 mL of 40 mg/mL samples
at pH 5.0 and 0.5 mL/min of loading flow rate, followed by desorption with 75% ethanol at a flow rate of 1.0 mL/min.
The IC50 of the ACE inhibitory peptides obtained under the optimized conditions was 0.87 mg/mL. Comparison of static
adsorption and desorption with dynamic adsorption and desorption indicated that the static adsorption rate of ACE inhibitory
peptides on DA201-C was 59.4%, which was higher than the dynamci adsorption rate of 48.1%.

Key words: macroporous resin, adsorption, porcine hemoglobin, DA201-C, ACE inhibitory peptides