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Aflatoxin B1 removal by multifunctional membrane based on polydopamine intermediate layer
Li, Sushuang1,2; Luo, Jianquan1,2; Fan, Jinxin1,2; Chen, Xiangrong1; Wan, Yinhua1,2
2018-06-30
Source PublicationSEPARATION AND PURIFICATION TECHNOLOGY
ISSN1383-5866
Volume199Pages:311-319
Abstract

A green and mild method for aflatoxin B1 (AFB1) removal from food and drinking is highly required due to its high toxicity to human. In this study, membrane technology was attempted firstly to remove AFB1 via two protocols, membrane adsorber and biocatalytic membrane. Four polyvinylidene fluoride microfiltration membranes with different pore size were used to prepare membrane adsorber through successively coating poly dopamine (PDA) and polyethyleneimine (PEI) on the membrane surface, and laccase was then loaded on the PDA/PEI-coated membrane to prepare biocatalytic membrane. Although biocatalytic membrane could remove AFB1 by both adsorption and enzymatic degradation, membrane adsorber outperformed thanks to its greater AFB1 removal efficiency (71%) and permeate flux (60 L.m(-2).h(-1)) under gravity-driven flow-through mode. Hydrogen bonding together with electrostatic attraction was its main adsorption mechanism, and thus alkaline cleaning could fully desorb AFB1 from the membrane and further degrade detached AFB1. The contaminative apple juice was treated by such membrane adsorber, which could achieve a constant AFB1 removal for 7 reuse cycles.

KeywordMembrane Adsorber Biocatalytic Membrane Aflatoxin B1 Laccase Dopamine
DOI10.1016/j.seppur.2018.02.008
Language英语
WOS KeywordSurface Modification ; Degradation ; B-1 ; Water ; Detoxification ; Purification ; Bacteria ; Smectite ; Laccase
Funding ProjectNational Key Research and Development Plan of China[2017YFC1600906] ; National Science Foundation of China[21506229]
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
Funding OrganizationNational Key Research and Development Plan of China ; National Science Foundation of China
WOS IDWOS:000430784500035
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/24953
Collection生化工程国家重点实验室
Corresponding AuthorLuo, Jianquan; Wan, Yinhua
Affiliation1.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
Recommended Citation
GB/T 7714
Li, Sushuang,Luo, Jianquan,Fan, Jinxin,et al. Aflatoxin B1 removal by multifunctional membrane based on polydopamine intermediate layer[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2018,199:311-319.
APA Li, Sushuang,Luo, Jianquan,Fan, Jinxin,Chen, Xiangrong,&Wan, Yinhua.(2018).Aflatoxin B1 removal by multifunctional membrane based on polydopamine intermediate layer.SEPARATION AND PURIFICATION TECHNOLOGY,199,311-319.
MLA Li, Sushuang,et al."Aflatoxin B1 removal by multifunctional membrane based on polydopamine intermediate layer".SEPARATION AND PURIFICATION TECHNOLOGY 199(2018):311-319.
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