A Review of Recent Studies on the Antioxidant and Anti-Infectious Properties of Senna Plants

Table 2

Summary of several in vitro studies about the antioxidant activity and total phenolic content of genus Senna.

Senna genus	Part of plant—solvent—procedure (if any)	Method	Result						References
Senna gardneri (Benth.) H.S.Irwin & Barneby; Senna macranthera (Collad.) H.S.Irwin & Barneby; Senna splendida (Vogel) H.S.Irwin & Barneby; Senna trachypus (Benth.) H.S.Irwin & Barneby	Root, leaves—ethanol	DPPH, ABTS—Folin-Ciocalteu		DPPH (IC50 mg/mL)		ABTS (TEAC)		TPC (mg GAE/100 g)	[188]
				0,396		57,13		214,25
			Sm	0,534		53,72		122,09
			Ss	0,502		36,02		146,60
			St	0,253		64,47		1277,34
				0,089		47,91		338,76
			Sm	0,424		26,72		207,71
			Ss	0,286		29,63		148,24
			St	0,401		30,71		322,09
Senna velutina (Vogel) H.S.Irwin & Barneby	Leaves—ethanol	DPPH							[185]
Senna reticulata (Willd.) H.S.Irwin & Barneby	Aerial parts—Methyl tert-butyl ether (MTBE)/methanol (90 : 10)	DPPH, ORAC-Folin-Ciocalteu	DPPH (𝜇g/mL)			ORAC (mmol TE/mg extract)		TPC (mg GAE/g)	[193]
			72.90			2.68		79.3
Senna alata (L.) Roxb.	Roots—acetone, ethanol, water	DPPH, ABTS (IC50)		DPPH (𝜇g/mL)		ABTS (mmol TE/mg extract)		TPC (mg GAE/g)	[189]
			Acetone	82.42		64,93		21,42
			Ethanol	45,18		39,14		78,21
			Water	61,15		48,3		46,3
Senna bicapsularis (L.) Roxb.	Flowers—ethanol, water	DPPH, FRAP—Folin-Ciocalteu	% DPPH inhibition			FRAP (𝜇moles Fe(II)/100 g).		TPC (mg GAE/100 g)	[194]
			Ethanol	99,51		2403.15		26223.78
			Water	96,51		1966.30		9468.18
Senna italica mill.	Aerial parts—ethyl acetate, n-butanol	ABTS	% Inhibition						[88]
			Ethyl acetate					82,9
			n-Butanol					85,7
Senna siamea (Lam.) H.S.Irwin & Barneby	Leaves—ethanol (49%)—ultrasound-assisted (UA)	DPPH, FRAP—Folin-Ciocalteu		%DPPH inhibition.		FRAP (mM FeSO4/g)		TPC (mg GAE/g)	[190]
			Ethanol	80,49		8,08		455,42
			UA	91,83		11,41		575,23
Senna alexandrina Mill.	Flowers, leaves—ethanol (70%)—microwave, Soxhlet, marination, reflux and sonication	DPPH—HPLC-ESI-MS/MS			Soxhlet	Marination	Reflux	Sonication	[191]
			Flowers	3,1	3,4	3,5	6,5	5,9
			Leaves	3,6	4,2	5,6	6,2	7,4
Senna alata (L.) Roxb.	Leaves—ethanol	Chemiluminescence measurement							[192]
Senna alata (L.) Roxb.	Root, stem, seed, leaves and flower—methanol/water (80%)	FRAP-Folin-Ciocalteu			FRAP (g/100 g)		TPC (g/100 g)		[195]
			Root		0,255		1,69
			Stem		0,457		2,27
			Seed		0,345		2,59
			Leave		0,560		2,33
			Flower		0,565		1,36