4. Discussion
Studies of Santos et al. (2001) demonstrated that the incorporation
of coffee fruit peels in the soil is capable of hindering the
germination and growth of weeds. This information was essential
to delineate the present work, through which it was possible to
observe, under laboratory conditions, that the extracts of the dry
and fresh coffee fruit peels have the ability to interfere with the
germination process and the development of tested plants.
The caffeine percentages of DE and FE were 0.36%and 0.53%, respectively.
The highest antioxidant activity observed was at 20 mg mL−1
extract concentration, 65.27% (DE) and 72.45% (FE) (Table 5).