Table 1.

Comparison of bibenzyls contents (erianin and gigantol) in different tissues of D. officinale (Mean ± Standard error). ND denotes “not detectable”.

Compounds	Erianin (µg/g)	Gigantol (µg/g)	Total Content (µg/g)
Roots	2.63 ± 0.69	37.01 ± 2.16	39.64 ± 4.14
basal stems	0.61 ± 0.01	22.67 ± 0.15	23.28 ± 0.25
upper stems	ND	12.15 ± 1.87	12.15 ± 1.87
Leaves	ND	ND	ND