食品工业科技2012，Vol.33Issue(4)：168-172,176,6.
陶瓷膜超滤纯化褐藻酸钠及其分子量测定
Purification of sodium alginate by ceramic membrane and the determination of molecular weight
田洪芸 1王洪新 2黄智锋 3王远辉 1戴易兴 1秦晓娟1
作者信息
- 1. 江南大学食品学院,江苏无锡214122
- 2. 江南大学食品学院,江苏无锡214122／食品科学与技术国家重点实验室,江苏无锡214122
- 3. 合肥创想能源环境科技有限公司,安徽合肥230000
- 折叠
摘要
Abstract
The use of a ceramic membrane of 10000u to purify alginate was evaluated.The effects of operation temperature,trans-membrane pressure（TMP） and the ratio of liquid dilution on permeation flux were investigated.The results showed that permeation flux tended to remain stable after running 1h.A stable permeation flux of 75L/（h·m2） was obtained under the optimized conditions which were 0.08MPa of trans-membrane pressure,3 of the ratio of dilution liquid and 50℃ of operation temperature.The purity of sodium alginate obtained through the purification process was 96.25%.The circular dichroism method showed that the M/G was 1.4845.The average relative molecular weight was 2.13×106u measured by HPGFC,and the spectral properties of sodium alginate were investigated.关键词
褐藻酸钠/陶瓷膜/电导率/高效凝胶渗透色谱/圆二色谱Key words
sodium alginate/ceramic membrane/conductivity/HPGFC/circular dichroism分类
轻工纺织引用本文复制引用
田洪芸,王洪新,黄智锋,王远辉,戴易兴,秦晓娟..陶瓷膜超滤纯化褐藻酸钠及其分子量测定[J].食品工业科技,2012,33(4):168-172,176,6.
