TABLE 2.

Summary of the anthraquinone derivative concentration between S. occidentalis and S. tora.

Structure	Name	Concentration Mean (μg/g)
		Senna occidentalis		Senna tora*
		Young	Mature	Young	Mature
	Obtusin	N/D	0.01	0.83 ° 0.00	0.60 ° 0.04
	Chryso-obtusin	N/D	N/D	1.39 ° 0.40	0.69 ° 0.11
	Obtusifolin	N/D	N/D	1.38 ° 0.27	0.26 ° 0.06
	Aurantio-obtusin	0.39 ° 0.31	0.27 ° 0.18	1.07 ° 0.38	1.08 ° 0.13
	Physcion	14.72 ° 2.22	7.86 ° 3.02	2.02 ° 0.84	0.960.65
	0.38 ° 0.35	0.23 ° 0.14	11.39 ° 4.22	6.69 ° 4.86
	Citreorosein	1.04 ° 0.10	6.91 ° 2.65	N/A	N/A

*Reference: previous quantitative analysis of anthraquinone in Senna tora (Kang et al., 2020a). N/D, Not detected; N/A, Not assayed.