Conti-Silva et al. (2012) observed greater reten- tion of ethyl butyrate in corn grit extrudates under extrusion con- ditions that were less severe (20 g/100 g moisture and extrusion temperature 90 C) than those used in the present study. However, none of the previous studies that evaluated the effect of extrusion conditions on flavor retention in extrudates using the response surface methodology (Yuliani et al., 2009; Yuliani et al., 2006a, 2006b) studied the effect of moisture content of the raw material on this retention. Therefore, the results found in the present study could not be compared with those of other authors.