Positive Retention of Bioactive Compounds and Biochemical Components of Sathgudi Sweet Orange (citrus Sinensis L. Osbeck) Juice Concentrate by Integrated Membrane Process

Integrated membrane technology is one of the emerging processing technologies with many applications in agro-food industry where products are sensitive to heat treatments. To get the concentrate from clarified Citrus sinensis juice, laboratory scale integrated membrane process was designed. Batch concentration mode was applied for the process. First Ultrafiltration (UF) clarified the juice of 7.57°Brix, then reverse osmosis (RO) pre-concentrated the permeate of 6.23°Brix to retentate of 19.6°Brix and subsequently osmotic distillation (OD) concentrated the RO retentate and yield a final product i.e. concentrate having 54.47°Brix giving evaporation flux of 0.17 kg m−2 h−1 throughout the process run. Calcium chloride dihydrate (57.89 w/w