Figure 2 | Scientific Reports

Figure 2

From: Application of a modified tetra-primer ARMS–PCR assay for rapid Panax species identity authentication in ginseng products

Figure 2The alternative text for this image may have been generated using AI.

Visualization of amplification results from BRMs and red ginseng DNA used to design tetra-primer ARMS-PCR. (A) Amplification results at 28, 35, and 40 PCR cycles. (B) Amplification results with ten-to-one inner vs. outer primer ratio at 40 cycles. (C) Amplification results with ten-to-one inner versus outer primer ratio and deliberate mismatch at − 2 position at 40 cycles. Green arrow: faint PCR product at 28 cycles. Red circles: decreased band intensity at 35 and 40 cycles versus 28 cycles. Blue arrows: non-specific amplification of diagnostic bands. Red arrows: non-specific amplification of unexpected bands.

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