超滤浓缩微生物胞外多糖PS-9415发酵液的研究

食品科学 ›› 2003, Vol. 24 ›› Issue (2): 42-44.

超滤浓缩微生物胞外多糖PS-9415发酵液的研究

宋刚, 张宁, 彭志英

华南理工大学食品与生物工程学院，暨南大学食品科学与工程系

出版日期:2003-02-15 发布日期:2011-12-13

Study on Concentration of Exopolysaccharides PS-9415 Broth by FlatSheet Membrane Ultrafiltration

SONG Gang, ZHANG Ning, PENG Zhi-Ying

Online:2003-02-15 Published:2011-12-13

摘要/Abstract

摘要： 本文采用了截留分子量为70,000的平板超滤膜对微生物胞外多糖PS-9415的发酵液进行了超滤浓缩的研究。膜的透过通量受料液浓度、搅拌速度,操作压力等因素的影响。其中,降低料液浓度,增加搅拌、提高压差可以增加膜的透过通量。0.5%的多糖在室温、0.15MPa下超滤108min可浓缩2倍。

关键词: 平板膜超滤, 微生物胞外多糖PS-9415

Abstract: Flat sheet membrane ultrafiltration cup with membrane molecular weight of 70,000 was used to concentrate PS-9415 fermentation broth.Increasing the operation pressure could improve the permeation flux,So did better agitation and lower initial concentration.The concentration of exopolysaccharides broth (0.5%) could be increased 2 fold under the condition of 0.15MPa and room temperature.

Key words: flat sheet membrane utrafiltration, exopolysaccharides PS-9415

宋刚, 张宁, 彭志英. 超滤浓缩微生物胞外多糖PS-9415发酵液的研究[J]. 食品科学, 2003, 24(2): 42-44.

SONG Gang, ZHANG Ning, PENG Zhi-Ying. Study on Concentration of Exopolysaccharides PS-9415 Broth by FlatSheet Membrane Ultrafiltration[J]. FOOD SCIENCE, 2003, 24(2): 42-44.