Matsubara Y, Iwasaki K, Nakajima M, Nabetani H, Nakao S
a Kagawa Prefectural Fermentation & Food Experimental Station , Uchinomi, Kagawa 761-44 , Japan.
b Food Researeh Institute, Kagawa Prefectural Government , Goto, Takamatsu, Kagawa 761 , Japan.
Biosci Biotechnol Biochem. 1996 Jan;60(3):421-8. doi: 10.1271/bbb.60.421.
The recovery of soybean oligosaccharides from the steamed soybean waste water in tofu (soybean protein curd) processing was carried out by using reverse osmosis and nanofiltration membranes. The feed solution was prepared by isoelectric and ultrafiltration treatments. Concentrations of the total oligosaccharides of 10% (w/v) and 22% (w/v) were obtained by using the RO and NF membranes in a batch operation. The chemical oxygen demand of the feed solution was simultaneously reduced from 8400-8700 ppm to 27-160 ppm. The permeate flux was mathematically analyzed by the osmotic pressure model with concentration polarization, the simulated results agreeing well with the experimental ones.
通过使用反渗透和纳滤膜从豆腐（大豆蛋白凝乳）加工过程中的蒸煮大豆废水中回收大豆寡糖。进料溶液通过等电和超滤处理制备。在间歇操作中使用RO和NF膜分别获得了总寡糖浓度为10%（w/v）和22%（w/v）的产物。进料溶液的化学需氧量同时从8400 - 8700 ppm降低到27 - 160 ppm。通过考虑浓差极化的渗透压模型对渗透通量进行了数学分析，模拟结果与实验结果吻合良好。
