食品科学 ›› 2009, Vol. 30 ›› Issue (7): 29-32.doi: 10.7506/spkx1002-6630-200907005

• 基础研究 • 上一篇    下一篇

高纯度牛骨胶原的制备及其结构表征

成晓瑜,陈文华,裴显庆,冯 平   

  1. 中国肉类食品综合研究中心
  • 收稿日期:2008-07-14 修回日期:2008-06-11 出版日期:2009-04-01 发布日期:2010-12-29
  • 通讯作者: 成晓瑜 E-mail:chxyey@yahoo.com.cn
  • 基金资助:

    “十一五”国家科技支撑计划项目(2006BAD05A16)

Purification and Characterization of Bovine Bone Collagen

CHENG Xiao-yu CHEN Wen-hua PEI Xian-qing FENG Ping   

  1. (China Meat Research Center, Beijing 100068, China)
  • Received:2008-07-14 Revised:2008-06-11 Online:2009-04-01 Published:2010-12-29
  • Contact: CHENG Xiao-yu E-mail:chxyey@yahoo.com.cn

摘要:

本实验以牛骨为原料,提供了一种经过粉碎、脱脂、脱钙、酶解、盐析、纯化、冷冻干燥等步骤来制备天然牛骨胶原的方法。并采用SDS-PAGE凝胶电泳、紫外吸收光谱、红外吸收光谱、氨基酸含量分析方法,对其进行了结构表征。结果表明,纯化的天然牛骨胶原的纯度达到99%,属于胶原I型([α1(I)]2α2(I)),且完整地保持了胶原的三螺旋结构,两条肽链的相对分子量为α1=123kD,α2=112kD。

关键词: 牛骨, 胶原, 提纯, 结构表征

Abstract:

In this study, high-purity bone collagen was prepared from bovine bone via smashing, degreasing, decalcifying, hydrolyzing with enzyme, salting out, purifying and freeze-drying, and then its characterization was analyzed by SDS-PAGE electrophoresis, ultraviolet absorption spectrum, infrared absorption spectrum and amino acid component analysis. The results showed that the purity of the collagen product reaches 99%; it belongs to type I collagen ([α1(I)]2α2(I)) with integrated three helical structure, and the related molecular weights of its peptide chainsα1 andα2 are 123 kDa and 112 kDa, respectively.

Key words: bovine bone, collagen, purification, characterization

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