Mass transfer and transport during purification of fructooligosaccharides by nanofiltration
作者： R.C. Kuhn , F. Maugeri Filho , V. Silva , L. Palacio , A. Hernández
DOI: 10.1016/J.MEMSCI.2010.09.031
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摘要: Abstract In this work, a process has been designed for the purification of fructooligosaccharides obtained by enzymatic transformation sucrose from sugar cane molasses. The protocol includes two nanofiltration stages with same membrane. first one is diafiltration process, at constant volume followed concentration. second stage consists in permeate to obtain concentrate similar its characteristics initial solution. allows getting purities over 90% yields around 80%. These processes are studied and modeled, taking into account effects resulting osmotic pressure changes resistance due solute adsorption on transport modeled assuming that there diffusion convection but hindered friction pore. steric partitioning, along an adequate mass balance differently sized molecules have also considered leading get pore size distribution
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