Structural and Compositional Profiles in Osmotically Dehydrated Apple
作者： D. SALVATORI , A. ANDRÉS , A. ALBORS , A. CHIRALT , P. FITO
DOI: 10.1111/J.1365-2621.1998.TB15795.X
关键词:
摘要: Concentration profiles in apple tissue during osmotic dehydration were studied and compared with simultaneous structural changes. Experiments conducted slices (20 30 mm thick) at 20, 30, 40 50°C. After treatments, water solutes analyzed serial 1.5 thick. The occurrence of an Advancing Disturbance Front, (ADF) was proposed to describe the mass transfer. ADF is located a distance d f interface, where reduced driving force (Y) 0.99. At distances d>d (undisturbed zone) neither compositional nor changes observed. constant rates for determined, showing slight temperature dependence. A generalized equation Y=f(d/d ) described fitted all experimental data.
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