Isolation of functional compounds from citrus
peel can be of interest to the food industry as they can
retard oxidative changes in food and thereby improve
the quality and nutritional value of food. Fernandez-
Lopez et al. (2004) reported that the presence of
functional dietary fiber and antioxidants in citrus byproducts
allow their application in food processing to
obtain healthy products using cooked and dry-cured
sausage. Dark color of the peel extract can limit applications
as it may interfere with the appearance of the food
component. We studied the effect of gamma irradiation
treatment on citrus peel extract and observed that irradiation
treatment improved color characteristics without
adversely affecting physiological properties (Jo
et al., 2003; Chawla et al., 2003).