Abstract
Panax ginseng and Panax quinquefolius have different medicinal properties and market values; however, they can be difficult to distinguish from one another based on physical appearances alone. Therefore, a molecular test that can be performed in commercial settings is needed to overcome this difficulty. A locus that contains a single nucleotide polymorphism (SNP) site to differentiate between P. ginseng and P. quinquefolius has been selected. An isothermal nucleic acid amplification test (NAAT) has been developed for use in a microfluidic chip; this NAAT method, which is based on lesion-induced DNA amplification (LIDA), amplifies the extracted plant genomic samples and enhances the detection of specific SNPs. This NAAT method was used to authenticate five ginseng root samples which indicated that two of the five samples appear to be mislabeled. These authentication results were consistent with those obtained from next generation sequencing (NGS) although this molecular test is more affordable and faster than NGS.
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