Oil Palm Phenolics Inhibit the In Vitro Aggregation of β-Amyloid Peptide into Oligomeric Complexes

Figure 5

Amide-I two-dimensional correlation spectra of the Aβ42 samples incubated at 37°C. without OPP at 1-hour (a) and at 10-hour (b) incubation. Aβ42 sample incubated at 37°C. with 10 μg/ml OPP at 10 hours (c). The diagonal peak at 1672 cm⁻¹, indicated by a blue arrow, is due to tetrafluoroacetic acid (TFA) present in the sample. The cross-peak near  cm⁻¹.

(a)

(b)

(c)