本文已被:浏览 2318次 下载 0次
投稿时间:2018-06-15
投稿时间:2018-06-15
中文摘要: 为建立基于TaqMan实时荧光聚合酶链式反应(polymerase chain reaction,PCR)技术在食品中的鹌鹑源性成分的定量检测方法,根据现行检验检疫标准(SN/T 2727-2010)合成引物及探针。首先对13种不同动物鲜肉组织的DNA进行鹌鹑源性成分特异性检测,然后对鹌鹑源性DNA模板原液进行梯度稀释,检测方法灵敏度,最后在加工制品中检测方法的适用性。研究结果表明:建立的方法特异性强,除鹌鹑肉外,牛、羊、猪、马、驴、狗、兔子、鸡、鸭、鸽子、火鸡、鱼12种动物鲜肉组织均无特异性扩增;方法的灵敏度较高,鹌鹑组分DNA的检出限可达10 fg/mL,灵敏度可达0.001%;方法的适用性较广,可以用于加工制品中鹌鹑源性成分的检测。
中文关键词: TaqMan实时荧光PCR 食品 鹌鹑源性成分 特异性 灵敏度
Abstract:In order to establish a quantitative detection method of quail origin in foods based on TaqMan realtime polymerase chain reaction (PCR).In this study,we synthesized primers and probes according to the industry standard (SN/T 2727-2010)for quarantine inspection.The primers and probe's specificity was tested by DNA templates extracted from raw meat from quail and 12 other animal species.Gradient dilutions of the quail-derived DNA template were used to evaluate the sensitivity.The applicability of the PCR assay for food products was also investigated.The results showed that this PCR assay was highly specific and could specifically amplify DNA from quail rather than cattle,sheep,pig,horse,donkey,dog,rabbit,chicken,duck,pigeon,turkey and fish.It was sensitive.The limit of detection for quail DNA was10fg/mLand the sensitivity was0.001%.Wide applicability,can be used for the test of processed meat products.
keywords: TaqMan real-time polymerase chain reaction(PCR) foods quail origin specificity sensitivity
文章编号:201903032 中图分类号: 文献标志码:
基金项目:内蒙古自治区高等学校科学研究项目(NJZY18369);锡林郭勒生物工程研究院项目(201601、201602);锡林郭勒职业学院科研课题(ZD2017-10)
作者 | 单位 |
罗建兴,海小,刘国强,郭梁,徐伟良,李春冬 | 1.锡林郭勒职业学院,内蒙古锡林浩特026000;2.锡林郭勒生物工程研究院,内蒙古锡林浩特026000;3.锡林郭勒食品检验检测和风险评估中心,内蒙古锡林浩特026000 |
引用文本: