The invention discloses an auxiliary method for detecting transgenic
plant components in foods. The method comprises the following steps: 1, separating NF-kB-luc transgenic mice into two groups, wherein the first group is fed by common
fodder while the second group is fed by to-be-detected
fodder which is a mixture of to-be-detected foods and common
fodder; 2, after 10 weeks, taking
manure of the mice and extracting total
DNA; 3, taking and breaking the total
DNA to obtain
a DNA segment of 300-800 bp; 4, taking the
DNA segment for high-
throughput sequencing of 16 S rRNA; 5, based on the results, obtaining composition of intestinal
flora, wherein if the relative abundance of
firmicutes in the
manure of the second group of mice is obviously higher than that of the first group, and
statistical difference appears, the to-be-detected foods contain the transgenic
plant components. The method is simple and convenient in operation, low in cost and simple in result judgment, and has very high promotion and application values.