食品科学 ›› 2010, Vol. 31 ›› Issue (18): 258-261.doi: 10.7506/spkx1002-6630-201018060

• 分析检测 • 上一篇    下一篇

苏丹红Ⅰ单克隆抗体的制备及其间接竞争ELISA 检测

裘雪梅,刘仁荣* ,徐 玲,孟 玮,涂 顺,谢少霞   

  1. 江西科技师范学院生命科学学院
  • 收稿日期:2010-04-30 修回日期:2010-07-20 出版日期:2010-09-25 发布日期:2010-12-29
  • 通讯作者: 刘仁荣 E-mail:lilirenrong@hotmail.com
  • 基金资助:

    江西省科技厅科技项目(GJJ10595);江西科技师范学院博士科研启动基金项目

Monoclonal Antibodies against Sudan I: Preparation of and Application in Indirect Competitive ELISA Detection

QIU Xue-mei,LIU Ren-rong*,XU Ling,MENG Wei,TU Shun,XIE Shao-xia   

  1. College of Life Science, Jiangxi Science and Technology Normal University, Nanchang 330013, China
  • Received:2010-04-30 Revised:2010-07-20 Online:2010-09-25 Published:2010-12-29
  • Contact: LIU Ren-rong*, E-mail:lilirenrong@hotmail.com

摘要:

重氮法合成苏丹红Ⅰ的结构类似物,通过活性酯法将苏丹红Ⅰ的结构类似物偶联到载体蛋白上制备人工抗原,用所制备的人工抗原免疫BALB/c 小鼠,采用细胞融合的方法制备苏丹红Ⅰ单克隆抗体,结果成功筛选到一株抗苏丹红Ⅰ单克隆抗体,经鉴定为IgG2a 型,并建立间接竞争ELISA 检测方法,线性范围为0.5~10ng/mL,检测下限为0.1ng/mL,加标回收率为52.3%~110%,变异系数为3.2%~8.9%。

关键词: 苏丹红Ⅰ, 单克隆抗体, ELISA检测

Abstract:

A SudanⅠanalog was synthesized by diazotization and conjugated to bovine serum albumin (BAS) or keyhole limpet hemocyanin (KLH) by active ester method and a BAS based detection antigen and a KLH based immune antigen were obtained. A competitive enzyme-linked immunosorbent assay (ELISA) was established to detect the immunogenity of the immune antigen. BALB/c mice were immunized with the immune antigen for antibody generation. For the preparation of anti-SudanⅠ monoclonal antibodies, cell fusion was used. An indirect competitive ELISA assay was developed. A linear relationship was observed over the concentration range of 0.5 to 10 ng/mL and the detection limit was 0.1 ng/mL. The average recovery rates of SudanⅠin red hot chili pepper powder spiked at 6 different levels were between 52.3% and 110% with variation coefficients varying from 3.2% to 8.9%.

Key words: Sudan Ⅰ, monoclonal antibody, ELISA detection

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