A Novel Orange Juice Concentration Method Based on C_2H_4 Clathrate Hydrate Formation

A novel orange juice concentration method by C_2H_4 hydrate formation was presented. The experiments were carried out in a high-pressure stirred reactor. The changes of temperature and pressure during C_2H_4 hydrate formation were discussed under different pressure (2.10 and 4.43 MPa). Dehydration ratio was defined in order to evaluate the separation efficiency. It was found that secondary nucleation happened under higher initial pressure. The dehydration ratios were 20.2 and 99.3% with initial pressure at 2.10 and 4.43 MPa, respectively. The results demonstrated that removal of water by formation of C_2H_4 hydrate is a potential technology for orange juice concentration.

並列關鍵字

C_2H_4 ； concentration ； fruit juice ； hydrate ； separation

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