食品工业科技2012，Vol.33Issue(19)：210-213,4.
超滤制备海带岩藻聚糖的工艺研究
Application of ultrafiltration on the extraction of fucoidan from kelp polysaccharide
摘要
Abstract
This paper studied that it was feasible to apply membrane separation technology to extract fucoidan from kelp polysaccharide.Also,the best technical parameters had been fixed on.It demonstrated that extraction in cold water could protect fucoidan from degradation.More than 80% of alginate could be removed at the condition of pH≤2.5.With the increasing of operating pressure,membrane flux would increase during the ultrafiltration process.After diluting the extract 0~2times,membrane flux increased,but the extracting ratio almost didn't changed.The results showed that the best extracting condition were:temperature 4℃,rate of material to liquid 1:30,extract 5 hours.Alginate removed under the condition of pH=2.0 50ku of ultrafiltration membrane was used to purify fucoidan under the pressure of 0.2MPa.The permeated liquid was precipitated by ethanol and dried by vacuum-freeze drying.The yield of fucoidan was 2.32%.The compositions of total sugar and sulphate were 38.24% and 21.49%.关键词
海带/岩藻聚糖/超滤Key words
kelp/polysaccharide/ultrafiltration分类
轻工纺织引用本文复制引用
王健,吴永沛,于立国..超滤制备海带岩藻聚糖的工艺研究[J].食品工业科技,2012,33(19):210-213,4.基金项目
国家海洋局公益项目 （）
