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Decoloration of Molasses by Ultrafiltration and Nanofiltration: Unraveling the Mechanisms of High Sucrose Retention

文献类型：期刊论文

作者Guo, Shiwei1,2; Luo, Jianquan1,2; Yang, Qiangjian1,2; Qiang, Xiufu1; Feng, Shichao1; Wan, Yinhua1,2
刊名FOOD AND BIOPROCESS TECHNOLOGY
出版日期2019
卷号12期号:1页码:39-53
关键词Salt-induced pore swelling Membrane fouling Loose nanofiltration Tight ultrafiltration Decolorization
ISSN号1935-5130
DOI10.1007/s11947-018-2189-z
英文摘要Membrane technology provides a green approach to recover sucrose from cane molasses. However, the trade-off between color removal and sucrose permeation by membrane filtration debases the efficiency and limits the application. In this study, ten commercially-available and one self-made ultrafiltration (UF) and nanofiltration (NF) membranes were used for decoloration of molasses. By investigating the effect of membrane properties, molasses components, and operating parameters on the molasses filtration behaviors, the mechanisms of high sucrose retention were clarified. For polyether sulfone (PES) membrane, the high retention of pigments and sucrose was mainly caused by the serious irreversible fouling as an additional selective layer. Polyamide (PA) NF membranes showed high antifouling ability, and a suitable pore size (500Da) was important to achieve high color removal and sucrose permeation. Although regenerated cellulose (RC) membranes exhibited excellent antifouling performance to molasses, the severe membrane swelling induced by salts and high temperature (60 degrees C) limited their application. Reducing sugar in molasses produced negligible effect on the sucrose retention, while inorganic salts resulted in pore swelling and solute dehydration due to salting-out effect, thus improving the sucrose permeation. However, such positive effect was weakened or eliminated by the pigments in molasses, and irreversible fouling became more serious in the presence of the molasses salts, especially for PES membranes. Based on the underlying mechanisms, the pore swelling and sucrose dehydration effects were reappeared by simply removing the non-polar pigments via macroporous resin adsorption, thus decreasing sucrose retention. High temperature could accelerate the sucrose permeation, but it also attenuated concentration polarization layer, thus intensifying the sucrose retention increase induced by high permeate flux. If a loose NF membrane was selected for decoloration of molasses, minimizing fouling formation, reappearing salt effect on membrane and sucrose, operating at high temperature and low permeate flux could minimize sucrose retention.
WOS关键词COLOR REMOVAL ; WASTE-WATER ; SUGAR-BEET ; MEMBRANE ; SEPARATION ; FILTRATION ; PURIFICATION ; EXTRACTION ; PIGMENTS ; SALT
资助项目Guangxi Science and Technology Major Project[AA17204034] ; Key Research Program of Chinese Academy of Sciences[KFZDSW-211-3] ; "100 Talents Program" of Chinese Academy of Sciences
WOS研究方向Food Science & Technology
语种英语
WOS记录号WOS:000454800300004
出版者SPRINGER
资助机构Guangxi Science and Technology Major Project ; Key Research Program of Chinese Academy of Sciences ; "100 Talents Program" of Chinese Academy of Sciences
源URL[http://ir.ipe.ac.cn/handle/122111/27665]  
专题中国科学院过程工程研究所
通讯作者Luo, Jianquan; Wan, Yinhua
作者单位1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Guo, Shiwei,Luo, Jianquan,Yang, Qiangjian,et al. Decoloration of Molasses by Ultrafiltration and Nanofiltration: Unraveling the Mechanisms of High Sucrose Retention[J]. FOOD AND BIOPROCESS TECHNOLOGY,2019,12(1):39-53.
APA Guo, Shiwei,Luo, Jianquan,Yang, Qiangjian,Qiang, Xiufu,Feng, Shichao,&Wan, Yinhua.(2019).Decoloration of Molasses by Ultrafiltration and Nanofiltration: Unraveling the Mechanisms of High Sucrose Retention.FOOD AND BIOPROCESS TECHNOLOGY,12(1),39-53.
MLA Guo, Shiwei,et al."Decoloration of Molasses by Ultrafiltration and Nanofiltration: Unraveling the Mechanisms of High Sucrose Retention".FOOD AND BIOPROCESS TECHNOLOGY 12.1(2019):39-53.

入库方式： OAI收割

来源：过程工程研究所

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