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Position: Home > Articles > Development of Double-Antibody Sandwich ELISA for the Detection of the Almond Allergen Amandin FOOD SCIENCE 2013,34 (16) 173-177

双抗体夹心酶联免疫吸附法检测杏仁过敏原苦杏仁球蛋白

作  者:
张洁琼;高淑霞;生威;张燕;王硕
单  位:
天津科技大学食品工程与生物技术学院,教育部食品营养与安全重点实验室;天津科技大学食品工程与生物技术学院
关键词:
杏仁;苦杏仁球蛋白;双抗体夹心酶联免疫吸附分析法
摘  要:
提取中国甜杏仁过敏原蛋白苦杏仁球蛋白,分别制备兔和鼠多克隆抗体,建立双抗体夹心酶联免疫吸附(ELISA)法。结果表明:对甜杏仁中苦杏仁球蛋白的检测限为(6.36±1.02)μg/L;对中国苦杏仁及美国大杏仁中苦杏仁球蛋白的检测限分别为(12.11±1.70)μg/L和(18.95±1.52)μg/L,且与常见的14种植物性蛋白没有交叉反应,表明该方法具有良好的特异性。将该方法用于法式小面包、饼干和脱脂牛乳中杏仁过敏原的检测,苦杏仁球蛋白的添加回收率为78.94%~125.15%,且相对标准偏差均低于5.81%。
译  名:
Development of Double-Antibody Sandwich ELISA for the Detection of the Almond Allergen Amandin
作  者:
ZHANG Jie-qiong,GAO Shu-xia,SHENG Wei,ZHANG Yan,WANG Shuo(Key Laboratory of Food Nutrition and Safety,Ministry of Education,College of Food Engineering and Biotechnology,Tianjin University of Science and Technology,Tianjin 300457,China)
关键词:
apricot kernel;amandin;double-antibody sandwich enzyme linked immunosorbent assay(sandwich ELISA)
摘  要:
In the present study,allergen amandin from Chinese sweet almond was prepared,and specific antibodies against the amandin were produced.A double-antibody sandwich enzyme linked immunosorbent assay(ELISA) based on rabbit polyclonal antibody and mouse polyclonal antibody was then established.The newly established ELISA could detect amandin at levels as low as(6.36 ± 1.02) μg/L,showing no cross-reactivity with 14 common plant proteins.The limit of detection for amandin was(12.11 ± 1.70) μg/L in Chinese bitter apricot kernel and(18.95 ± 1.52) μg/L in almond(AmygdaluscommunisL.).The sandwich ELISA were used to detect the amandin in spiked samples of Frenchstyle bread,biscuit and skim milk with recoveries ranging from 78.94% to 125.15%,and relative standard deviation(n = 3) below 5.81%.

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