Use of organic acids in association with chitosan, instead of sulphur compounds or strong mineral acids, seems to provide an interesting technological alter-native for the prevention of browning of litchi fruit. Browning of treated fruit is a function of the type of acid used, but it is above all dependent on the pH and level of dehydration of the pericarp after soak-ing. For a given storage temperature, and according to treatment conditions, prediction of browning may be possible based on pH of the pericarp and weight losses of fruit.