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Continuous potato starch hydrolysis process in a membrane reactor with tubular and hollow-fiber membranes
被引:8
|作者:
Grzeoekowiak-Przywecka, A
Slominska, L
机构:
[1] Starch & Potato Prod Res Lab, PL-62030 Lublin, Poland
[2] Univ Zielona Gora, Inst Biotechnol & Environm Protect, PL-60561 Zielona Gora, Poland
关键词:
starch;
maltose hydrolysate;
ultrafiltration reactor;
ceramic membrane;
polymeric membrane;
D O I:
10.1016/j.desal.2005.02.069
中图分类号:
TQ [化学工业];
学科分类号:
0817 ;
摘要:
Enzyme hydrolysis of maltodextrine by a fungal a-amylase for the production of maltose syrup was done by simultaneous use of a stirred tank reactor and a ceramic membrane molecular cut-off size 5 kDa and 8 kDa and polymeric ultrafiltration membrane with molecular weight cut-off size 6 kDa. The effect of size of membrane porosity, substrate: enzyme ratio and residence time on hydrolysis process have been examined. Ceramic membrane with tubular configuration gave 62.6-63.2% and polymeric membrane with hollow-fiber configuration gave not more than 40.0% maltose. Permeate flux for tubular membrane was 3-4 times higher than for hollow-fiber membrane.
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页码:105 / 112
页数:8
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