食品科学

• 专题论述 • 上一篇    下一篇

鸡卵黄免疫球蛋白的糖基化及其构效关系研究进展

佟晨瑶,贺真蛟,耿 放,马美湖,黄 茜,蔡朝霞   

  1. 国家蛋品加工技术研发分中心,华中农业大学食品科学技术学院,湖北 武汉 430070
  • 出版日期:2014-03-15 发布日期:2014-04-04

Research Progress in the Glycosylation and Structure-Function Relationship of Chicken Egg Yolk Immunoglobulin

TONG Chen-yao, HE Zhen-jiao, GENG Fang, MA Mei-hu, HUANG Xi, CAI Zhao-xia   

  1. National R&D Center for Egg Processing, College of Food Science and Technology,
    Huazhong Agricultural University, Wuhan 430070, China
  • Online:2014-03-15 Published:2014-04-04

摘要:

鸡卵黄免疫球蛋白(egg yolk immunoglobulin,IgY)是鸡卵黄中的一种免疫球蛋白。由于其具有原料易得、制备简单、不与类风湿因子以及哺乳动物的补体发生交叉反应等优点,IgY是一种颇具潜力的抗生素替代品,但由于IgY性质不稳定,易受温度、pH值、酶的影响,从而限制了其实际应用。糖链在维持IgY理化性质、抗原特性等功能中扮演着重要角色。因此,对IgY进行糖基化修饰,从而改善其理化性质和抗原特性,不仅能使鸡蛋资源得到充分利用,也为开发蛋黄保健食品、添加剂以及相应的医药产品提供科学依据。本文归纳几种常见的IgY的糖基化方法,并论述IgY糖基化与其结构、理化性质之间的关系。

关键词: 糖基化, 鸡卵黄免疫球蛋白, 功能活性, 构效关系

Abstract:

Egg yolk immunoglobulin (IgY) is an antibody existing in the egg yolk. It is easy to be obtained and produced.Also, it does not interact with rheumatoid factors or activate mammalian complement. Therefore it has become a potentiallypromising alternative to antibiotics. However, the application of IgY is limited due to its susceptibility to temperature,pH and enzymatic degradation. The glycan structure of IgY plays an important role in maintaining the structure,physicochemical properties, antigenic properties and other functions of IgY. Glycosylation in IgY can improve itsphysical and chemical properties, which not only makes egg resources to be fully utilized but also provides a scientificbasis for the development of egg yolk as health food, additives and other pharmaceutically relevant products. Thisarticle reviews several approaches for IgY glycosylation and discusses the relationships between glycosylation and thestructures and physicochemical properties of IgY.

Key words: glycosylation, chicken egg yolk immunoglobulins, functional activity, structure-function relationship