Deb Rajib, Sengar Gyanendra Singh, Singh Umesh, Kumar Sushil, Alyethodi R R, Alex Rani, Raja T V, Das A K, Prakash B
Molecular Genetics Laboratory, ICAR-Central Institute for Research on Cattle, Grass Farm Road, Meerut, Uttar Pradesh, 250 001, India.
Mol Biotechnol. 2016 Dec;58(12):850-860. doi: 10.1007/s12033-016-9984-4.
Loop-mediated isothermal amplification (LAMP) is a diagnostic method for amplification of DNA with rapid and minimal equipment requirement. In the present study, we applied the LAMP assay for rapid detection of cow components adulteration in buffalo milk/meat samples. The test can be completed within around 1 h 40 min starting from DNA extraction and can be performed in water bath without requirement of thermocycler. The cow DNA in buffalo samples were identified in the developed LAMP assay by either visualizing with SYBR Green I/HNB dyes or observing the typical ladder pattern on gel electrophoresis. The test can detect up to 5 % level of cow milk/meat mixed in buffalo counterparts. Due to the simplicity and specificity, the developed LAMP test can be easily adapted in any laboratory for rapid detection of cow species identification in livestock by products.
环介导等温扩增技术(LAMP)是一种用于DNA扩增的诊断方法,具有快速且设备要求极低的特点。在本研究中,我们应用LAMP检测法快速检测水牛乳/肉样品中掺假的牛成分。该检测从DNA提取开始,大约1小时40分钟内即可完成,且可在水浴中进行,无需热循环仪。在开发的LAMP检测法中,通过用SYBR Green I/HNB染料可视化或观察凝胶电泳上典型的梯状条带模式,可鉴定水牛样品中的牛DNA。该检测法能够检测出与水牛乳/肉混合比例达5%的牛乳/肉。由于方法简单且具有特异性,所开发的LAMP检测法可轻松应用于任何实验室,用于快速鉴定畜产品中的牛物种。