Development of White Cabbage, Coffee, and Red Onion Extracts as Natural Phosphodiesterase-4B (PDE4B) Inhibitors for Cognitive Dysfunction: In Vitro and In Silico Studies

Figure 1

TLC profile of coffee, onion, chlorogenic acid, and quercetin along with their spectrums (b) and (d). TLC plates indicate (a(i)) and (c(iii)) (at 254 nm); (a(ii)) and (c(iv)) (at 366 nm); CE = coffee extract; OE = onion extract; Cl = chlorogenic acid; Qu = quercetin; AUC = area under the curve; Rf = retention factor.

(a)

(b)

(c)

(d)