Treatment and recycling of concentrated solutions used in osmotic dehydration food processes: needs, problems and examples

Abstract

Osmotic dehydration processes require the used concentrated solution to be recycled in order to make these processes clean and economically viable. We present here two examples of solution recycling: the semi-industrial cas of a water-sucrose mixture used on apple and regenerated simultaneously and the semi-discontinuous regeneration of a ternary water/salt/maltodextrins solution used on herring filets