Production of antioxidant enriched cranberry juice by electrodialysis with filtration membrane : impact of process on juice composition

摘要

Cranberry juice is recognized for its nutraceutical properties. Recently, it was demonstratedthat it is possible to enrich a cranberry juice in antioxidants from another cranberry juice byan electrodialysis with filtration membrane (EDFM) process. In order to transpose thistechnology on an industrial scale for the production of an antioxidant enriched cranberryjuice, the present work aimed to study, during consecutive EDFM treatments, the evolution ofraw and enriched cranberry juices composition. The anthocyanin concentrations and theantioxidant capacity of the enriched juice increased respectively of 19.41% and 23.74%,while the anthocyanin concentrations and antioxidant capacity of the raw juice remainedconstant throughout treatments.