Table 5.

IC₅₀ of DPPH, hydroxyl, alkyl radical scavenging in lotus root hot water extract and taurine

IC50 (mg/ml)	DPPH	Alkyl	Hydroxyl
R	0.18	0.12	2.01
T	X	X	X
R1:T1	0.45	1.99	3.25
R1:T6	3.39	X	X
R1:T12	X	X	X
Vit C	0.03	0.01	0.02

X: result larger than 4mg/ml; R: lotus hot water extract; T: taurine; Vit C: vitamin C; R1:T1:mixture ratio between lotus root hot water extract and taurine was 1:1; R1:T6: mixture ratio between lotus root hot water extract and taurine was 1:6; R1:T12: mixture ratio between lotus root hot water extract and taurine was 1:12