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学科主题: Chemistry, Multidisciplinary; Engineering, Chemical
题名: Ultrafiltration behaviors of pectin-containing solution extracted from citrus peel on a ZrO2 ceramic membrane pilot unit
作者: Xie, LW ; Li, X ; Guo, YP
通讯作者: xiecsu@126.com
关键词: crossflow ultrafiltration ; ZrO2 ceramic membrane ; pectin ; hesperidin ; pigment
刊名: KOREAN JOURNAL OF CHEMICAL ENGINEERING
发表日期: 2008
卷: 25, 期:1, 页:149-153
收录类别: sci
部门归属: [Xie Lianwu; Li Xiang] Chinese Acad Sci, S China Sea Inst Oceanol, Guangzhou 510301, Guangdong, Peoples R China; [Xie Lianwu] Grad Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Guo Yaping] Cent S Univ Forestry & Technol, Sch Sci, Changsha 410004, Hunan, Peoples R China
摘要: Ultrafiltration experiments on a solution of pectin, hesperidin, and other mixtures extracted from citrus peels have been performed on a 500 l/min pilot scale crossflow ceramic membrane unit. A 30,000 molecular weight cut-off (MWCO) zirconia (ZrO2) ceramic membrane with a total effective flow area of 0.5 m(2) was used in the process. The permeate flux for pure water and hesperidin showed linear relationship with transmembrane pressure (Delta P), but the flux for pectin solutions showed a curvilinear relationship with Delta P and represented a rapid increase with increasing Delta P before leveling-off. Similar behavior was observed by adding different amounts of hesperidin to these pectin solutions, but with much lower permeate flows. The formation of gel layers on the membrane surface is mainly responsible for the lower permeate fluxes. In addition, the permeate flux decrease faster at higher Delta P, since higher Delta P brought bigger flux at lower pectin concentration. Compared with the more than 90% retention rate of macromolecular pectin, pigment and other component have less than 20% retention rate. So, the decolorization, the separation and purification of pectin preparations could be achieved simultaneously through ultrafiltration with a ceramic membrane.
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WOS记录号: WOS:000253166500027
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/5374
Appears in Collections:海洋生物_期刊论文

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Xie, LW; Li, X; Guo, YP.Ultrafiltration behaviors of pectin-containing solution extracted from citrus peel on a ZrO2 ceramic membrane pilot unit,KOREAN JOURNAL OF CHEMICAL ENGINEERING,2008,25(1):149-153
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文件名: Ultrafiltration behaviors of pectin-containing solution extracted from citrus peel on a ZrO2 ceramic membrane pilot unit .pdf
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