Table 1.

Steady state fluorescence emission parameters for fisetin and daidzein in aqueous and γ-CDx environments.

System	Flavonoids	${\lambda }_{em}^{max}(\text{nm})$ (nm) Normalab	${\lambda }_{em}^{max}(\text{nm})$ (nm) Tautomera	Fluorescence Intensityb (IT/IN) a	Anisotropy (r)
	Fisetina
Aqueous system		488	517	1.09	0.03
γ-CD matrix (15 mM)		484	532	1.69	0.114
	Daidzeinb
Aqueous system		469		10.67	0.025
γ-CD matrix (15 mM)		467		43.21	0.11

^a(I_T530/I_N470),

^bFluorescence Intensity at ${\lambda }_{em}^{max}$

For anisotropy measurements: ^a λ_ex = 370 nm, λ_em = 580 nm, ^b λ_ex = 340 nm, λ_em = 470 nm