当前位置: 首页 > 文章 > 花生及其制品中黄曲霉毒素B1免疫亲和柱净化-荧光快速检测技术 中国油料作物学报 2007,29 (2) 199-203
Position: Home > Articles > Study on the fluorescence fast detection of aflatoxin B1 in peanut and related products purified by immuno-affinity column Chinese Journal of Oil Crop Sciences 2007,29 (2) 199-203

花生及其制品中黄曲霉毒素B1免疫亲和柱净化-荧光快速检测技术

作  者:
马良;李培武;张文;谢立华;丁小霞;陈小媚
单  位:
中国农业科学院油料作物研究所;农业部油料及制品质量监督检验测试中心
关键词:
黄曲霉毒素B1;花生;荧光;免疫亲和;速测
摘  要:
报道一种免疫亲和柱净化-荧光法快速检测花生及其制品中黄曲霉毒素B1的分析方法.用70%甲醇对样品进行初步提取,过滤后用石油醚萃取脱脂,萃取液稀释后用免疫亲和微柱纯化富集,洗脱液放入黄曲霉毒素专用荧光定量速测仪器中自动读取结果,直接读数的线性范围为0.3~25μg/kg,R2=0.9995,该方法的平均回收率超过90%,变异系数低于5%,最低定量浓度为0.3μg/kg.应用于花生及其制品的黄曲霉毒素B1检测,单个样品检测全过程(含样品提取)所需时间可以控制在45min左右,检测成本低于其他仪器方法.
译  名:
Study on the fluorescence fast detection of aflatoxin B1 in peanut and related products purified by immuno-affinity column
作  者:
马良(1);;李培武(1);;张文(2);;谢立华(2);;丁小霞(2);;陈小媚(2)
单  位:
(1)中国农业科学院油料作物研究所, 湖北, 武汉, 430062;;(2)农业部油料及制品质量监督检验测试中心, 湖北, 武汉, 430062
摘  要:
A fluorescence rapid detecting method for AFB^n peanut and related products based on the immuno-affinity technology was developed. Samples were simply'extracted by 70% methanol solvent. After being filtered, the extract was extracted by petroleum ether to get rid of lip id. The extract needed to be diluted before it was purified and enriched by immunoaffinity micro-column. The eluate was tested in the special fast test apparatus with direct reader. The readable linear of the method was 0. 3~25μg/kg,R~2 = 0. 999 5,the average recovery was above 90% with CV being under 5%. The limit detection of AFBJrom peanut and its related products was 0. 3μg/kg by the mothod. The time of whole test process was about 45 minutes. The cost of detection was lower than other instruments and methods.

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