Table 1 shows the antimicrobial activity of fresh-cut mango untreated and treated with the ethanolic extract of seeds, stored at 5°C during 15 days. A significant effect (p ≤ 0.05) of the treatment on the growth of the meso- philic aerobic microorganisms and total fungi and yeast was found. On days 0 and 5 microbial counts were under the limit of enumeration, however, on days 10 and 15 the control had a higher population of these microorganisms, being statistical differences amongst them. At the end of the storage, the treatment inhibited the growth of meso- philic aerobic microorganisms, total fungi and yeast causing an 80% and 97% of microbial reduction com- pared to control fruit.