電気透析法による醗酵液よりイタコン酸の濃縮・精製プロセス : 醗酵生産物の分離に関する研究(第5報)

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We applied electrodialysis of a process for concentrating and purifying itaconic acid from dilute impure fermented liquor from high test molasses, and found that ultrafiltration of ca. 1,000 molecular weight cut-off was a valuable pretreatment.The reduced power consumption W (kWh/ton K_2 IA) for the displacement of one ton of potassium itaconate from pure solution or fermented solution prefiltered through membrance Diaflo UM 2 was correlated with the effluent dialysate concentration C_D (g/dl).In the demineralization of itaconate salt from fermented liquor containing 4 (g/dl) as itaconic acid, application of a process involving a concentrated transfer stream of 20 (g/dl)acid and a diluted process stream of 0.8 (g/dl) acid resulted in a power consumption of 860 (kWh/ton H_2 IA) for raw sugar and of 960 for high test molasses.Plant construction and production cost estimates for this process with ultrafiltration were about 60% of those for the conventional evaporation process coupled with continuous fermentation. High test molasses was found to be a useful raw material.
社団法人日本生物工学会の論文
1975-05-25