Abstract:It was found that both of the temperature and pressure could influence the membrane flux. For the condensation of passion fruit juice by nanofiltration without affecting the aroma ingredients, Vc and other nutritive substances, the best temperature and pressure were 28 ℃ and 3 MPa, respectively, under which the highest separation efficiency was reached with the membrane flux being of 17 L/(m2.h). Besides, the concentration of soluble solids in the defecated passion fruit juice was improved from 13 oBx to 30 oBx. The researches offered reference for decreasing the loss of aroma ingredients, Vc and other nutritive substances in industrialized concentration of passion fruit by nanofiltration.
