Table 2.

High-concentration EXD components identified from the literature.

Formula	Method	Component	Concentration	Ref.
ZM	HPLC	Mangiferin	32.30 mg/g	[66]
		Timosaponin B-II	17.70 mg/g
BJT	RP-HPLC	2-Hydroxy-3-hydroxymethylanthraquinone	94.36 μg/g	[67]
		2-Hydroxy-1-methoxy anthranquinone	164.43 μg/g
		Rubiadin-1-methyl ether	80.26 μg/g
		Rubiadin	21.53 μg/g
XM	HPLC	5-Hydroxymethylfurfural	0.028~0.151 mg/g	[68]
		2-Hydroxy-5-(2-hydroxyethyl) phenyl-β-D-glucopyranoside	0.031~0.338 mg/g
		Anacardoside	0.207~3.172 mg/g
		Orcinol glucoside	1.795~6.239 mg/g
		Orcinol-1-O-β-D-apiofuranosyl-(1 → 6)-β-D-glucopyranoside	0.150~2.088 mg/g
		2,6-Dimethoxybenzoic acid	0.504~1.790 mg/g
		Curculigoside	0.919~2.187 mg/g
		Curculigine A	0.066~0.262 mg/g
YYH	HPLC	Total flavone	80.7 ± 2.11 mg/g	[69]
		Epimedium lan	11.1 ± 0.25 mg/g
DG	HPLC	Ferulic acid	0.20~0.24 mg/g	[70]
HB	HPLC	Berberine	6.63 mg/g	[71]
		Phellodendrine	87.7 mg/g