聚芳醚砜酮微滤膜在酱油除菌中的应用  

作　　者：田婧[1] 杨大令[1] 张守海[1] 靳钊[1] 蹇锡高[1] 

机构地区：[1]大连理工大学化工学院高分子材料系,辽宁大连116001

出　　处：《食品工业科技》2007年第7期72-75,共4页Science and Technology of Food Industry

基　　金：国家"863"计划资助项目(2001AA334020-3)

摘　　要：选择聚芳醚砜酮(PPESK)中空纤维微滤膜对酱油原液进行除菌实验,代替其传统工艺中高温灭菌-静置沉降-多次过滤等工艺,考察了滤膜的除菌效果及操作参数(压力、温度、时间等)对渗透通量的影响,选择了冷、热水反洗和碱液清洗的方法对污染膜进行再生处理,并对反洗效果进行了考察比较,确定了最佳操作参数。结果表明,任何情况下滤膜的除菌率均达到100%,最佳操作压力为0.07MPa,可选择的操作温度范围较宽,在近30h内膜渗透通量变化较小,表现出较强的耐污染性,热水及碱液反洗均有很好的再生效果,渗透通量恢复率高至100%,而碱洗更佳。滤膜具有耐污染性、可长期操作性、耐高温性及耐碱腐蚀性等优良特性。A hollow fiber micro-filtration membrane of poly （phthalazinone ether sulfone ketone） （PPESK） was chosen to filter the bacteria from soy sauce which is untreated by heat. The effect of bacteria separation was studied, and also the operating conditions （such as pressure, temperature and time）, which contribute to the definition of the optimal operation conditions. Using different back-washing methods - cold water, hot water and alkali lye to revive the membrane. It showed that the separation rate of bacteria from oil sauce was 100% - no matter in what operation conditions; The optimal conditions were pressure of 0.07 MPa and temperature of about 40℃; The decline of permeation flux was smooth; All the back-washing methods worked well, while the NaOH back-washing made the best recovery of flux; Multi-operating helped develop the full potential of membrane; This micro-filtration membrane was concluded of anti-multi-operation ability, anti-heated, anti-chemical-destroy ability and other good abilities.

关 键 词：聚芳醚砜酮(PPESK) 微滤膜 酱油 除菌 反洗 

分 类 号：TS264.21[轻工技术与工程—发酵工程]