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Table 1 Patents for using DNA techniques to authenticate high-value Chinese medicinal materials

From: Patent applications for using DNA technologies to authenticate medicinal herbal material

Medicinal material

Description of the patent

DNA techniques

Patent number

Radix Et Rhizoma Ginseng (Renshen)

Distinguish Panax ginseng from Panax quinquefolius, distinguish Codonopsis species and adulterants

PCR-RFLP

US Patent 5876977

Differentiate wild ginseng, cultivated ginseng, and adulterants

PCR-RFLP

Chinese Patent 200410016240

Distinguish Panax ginseng from Panax quinquefolius and adulterants

SCAR

US Patent 6803215

Caulis Dendrobii (Shihu)

Distinguish 16 Dendrobium species and adulterants from each other

PCR-RFLP

Chinese Patent 01102434

Cordyceps (Dongchongxiacao)

Distinguish Cordyceps sinensis from seven related species

PCR-RFLP

Chinese Patent 99106135

Distinguish Cordyceps sinensis from seven related species

PCR-RFLP

US Patent 6271003

Distinguish Cordyceps sinensis from seven related species

DNA sequencing

US Patent 6251606

Colla Corii Asini

(Ejiao)

Distinguish Equus asinus from domestic animals

PCR-RFLP

Chinese Patent 03153838

Rhizoma Gastrodiae

(Tianma)

Distinguish Gastrodia eleata from adulterant Lycopus lucidus

SCAR

Chinese Patent 200510031346