Table 3.
Alliin and allicin concentrations of Welsh onion root extract at various extraction conditions

Time (h)		Water			70% ethanol		100% ethanol
		40°C	70°C	100°C	40°C	70°C	40°C	70°C
Alliin (mg/g)	2	86.477	77.749	76.078	79.006	75.992	44.534	56.697
	4	69.550	77.653	71.686	57.055	48.144	29.602	ND
Allicin (mg/g)	2	0.254	0.398	0.473	0.411	1.371	0.805	1.412
	4	0.142	0.343	0.484	0.292	0.915	0.320	ND