Table 5. Summary of the HPLC Analysis of EVOO Compound Binding (20 μg/mL Greek Extract) to Insoluble Aβ40 Fibrils (20 μM Monomer Equivalent).

retention time (min)	compound	normalized peak intensitya		% bound	λ (nm)b
		–fibril	+fibril
1.0	hydroxytyrosol	12.9	3.8	71	275
1.2	unknown	11.7	1.7	86	275
1.7	unknown	1.3	0.0	100	275
1.9	tyrosol	93.1	8.4	91	275
2.9	vanillic acid	2.2	0.0	100	275
3.0	caffeic acid	1.6	0.0	100	275
5.7	p-coumaric acid	3.8	0.0	100	275
8.1	unknown	7.2	6.3	12	240
8.9	unknown	1.4	0.0	100	340
9.2	unknown	100.0	14.4	86	240
9.4	unknown	96.5	6.3	93	240
12.1	unknown	6.5	5.5	16	240
14.1	luteolin	3.6	1.2	66	340
14.3	unknown	11.8	7.2	39	275
14.6	(+)-pinoresinol	12.9	8.9	31	275
15.0	unknown	2.1	0.0	100	340
15.3	naringenin	70.3	55.5	21	275
15.8	unknown	2.4	0.0	100	275
16.0	apigenin	3.1	0.0	100	340
17.7	unknown	1.5	0.0	100	275
17.8	unknown	1.6	1.2	24	275
18.3	unknown	2.5	2.0	25	275
19.7	unknown	3.2	0.0	100	275
19.9	unknown	1.1	0.0	100	275
20.4	unknown	1.4	0.0	100	275
22.6	unknown	20.2	14.6	28	240

^aNormalized to the maximum peak intensity (at 9.2 min) in the absence of fibrils.

^bWavelength of maximum absorbance chosen for quantification.