The effect of delactosed whey permeate on phytochemical content of canned tomatoes

► Effect of DWP on antioxidants and quality of canned tomatoes has been examined. ► DWP treatment inhibited the loss of firmness (40%) over 6 months storage. ► DWP treated tomatoes had higher levels of AA, lycopene and antioxidant activity. ► The results were fitted well to Weibull kinetic model with high R2 and low RMSEC. ► DWP enhanced the retention of antioxidants in canned tomatoes during storage.