Antioxidant Activity and Cytotoxicity Effect of Cocoa Beans Subjected to Different Processing Conditions in Human Lung Carcinoma Cells

Figure 3

The effect of unroasted slates (US) and roasted slates (RS) nibs extract in cell control (a). Cocoa nibs US (b) and cocoa nibs RS (c), after forty-eight hours on viability A549 cells after exposure using MTT assays. The results are expressed as mean ± standard error and significant differences between cells treated with US and RS nibs extract (100–10000 μg/mL) were compared using Tukey’s test (; ).

(a)

(b)

(c)