The invention pertains to a test technology of transgenic ingredients in food and feed, and especifically relates to a kit and a method for testing Roundup Ready transgenic Soybean and processed products thereof by using a loop-mediated isothermal amplification method. The kit comprises a loop-mediated isothermal amplification reaction solution A, a loop-mediated isothermal amplification reaction solution B, a Bst
DNA polymerase C, a colour developing
reagent D, and a
positive control DNA E; the reaction solution A contains a reaction buffer, dNTP,
magnesium sulfate,
betaine, an upstream inner primer A: 5'-AGGTGGCACCTACAAATGCCATCGGCAGAGGCATCTTGAAC-3', a downstream inner primer A: 5'-TAGCTGGGCAATGGAATCCGAGGTCTCAGAAGACCAAAGGGC-3', an upstream outer primer A: 5'-TCCATCTTTGGGACCACTGT-3' and a downstream outer primer A: 5'-CGACACTCTCGTCTACTCCA-3'; and the reaction solution B contains a reaction buffer, dNTP,
magnesium sulfate,
betaine, an upstream inner primer B: 5'-AATCGAGCGGCGCCTCAGGCCGTAAGGAAGGCGACACC-3', a downstream inner primer B: 5'-AATGCCGCCACGGGCTCGTCGCCGATGAAGGTG-3', an upstream outer primer B: 5'-CCATGGGCGCCAGGAT-3' and a downstream outer primer B: 5'-ATCGGGCGCTTTGTGAG-3'. The method for testing the Roundup Ready transgenic Soybean and processed products thereof comprises the steps of the extraction of sample
DNA, the loop-mediated isothermal amplification of
cauliflower mosaic virus (CaMV) 35S
promoter and Roundup Ready CP4-EPSPS
gene and colour development test. The invention has the advantages of rapidness, strong specificity, high sensitivity, simple and convenient operation, good
repeatability and low cost.