食品科学 ›› 2007, Vol. 28 ›› Issue (2): 149-152.

• 生物工程 • 上一篇    下一篇

脱氧雪腐镰刀菌烯醇人工抗原的研制

 邓舜洲, 游淑珠, 许杨   

  1. 南昌大学食品科学教育部重点实验室; 南昌大学食品科学教育部重点实验室 江西南昌330047; 江西南昌330047;
  • 出版日期:2007-02-15 发布日期:2011-12-31

Preparation of Artificial Antigen of Mycotoxin Deoxynivalenol

 DENG  Shun-Zhou, YOU  Shu-Zhu, XU  Yang   

  1. Key Laboratory of Food Science, Ministry of Education, Nanchang University, Nanchang 330047, China
  • Online:2007-02-15 Published:2011-12-31

摘要: 本研究利用丁基硼酸封闭DON的7,15-羟基,戊二酸酐酰化3-羟基合成3-HG-DON,通过活泼酯法将3-HG-DON偶联到载体蛋白OVA,制备检测抗原。采用CDI法将DON分子与载体蛋白MBSA偶联制备的免疫抗原免疫3只BALB/c小鼠,经4次免疫后,1号小鼠血清抗体效价达1∶25600,且小鼠抗DON多克隆抗体与DON-HG-OVA的结合能被DON阻断。

关键词: 脱氧雪腐镰刀菌烯醇, 人工抗原

Abstract: The 3-hemiglutarate-deoxynivalenol (3-HG-DON) was prepared by protection of the C7- and C15-hydroxyls with a cyclic boronate ester, esterified with glutarate at the C3-hydroxyl, and then the boronate ester removal as tested by TLC (thin layer chromatography) and UV spectrometer. ESI-MS. 3-HG-DON was activated by active ester method, and conjugated to ovalbumin (OVA) as DON detecting antigen (DON-HG-OVA). DON was activated by 1,1-Dicyclohexylcarbodiimide (CDI), and conjugated to modify bovine serum albumin (MBSA) as immunogen (DON-MBSA). The titer of anti-DON antibodies in one BLAB/c mice serum, immunized by DON-MBSA, is about 1:25600, in which antibodies binding to DON-HG-OVA can be inhibited by free DON.

Key words: deoxynivalnol, artificial antigen