Quinic acid (QA) and its ester conjugates have been subjected to in-depth scientific investigations for their antioxidant properties. In this study, molecularly imprinted polymers (MIPs) were used for selective extraction of quinic acid (QA) from coffee bean extract. Computational modelling was performed to optimize the process of MIP preparation. Three different functional monomers (allylamine, methacrylic acid (MAA) and 4-vinylpyridine (4-VP)) were tested for imprinting. The ratio of each monomer to template chosen was based on the optimum ratio obtained from computational studies. Equilibrium rebinding studies were conducted and MIP C, which was prepared using 4-VP as functional monomer with template to monomer ratio of 1:5, showed better binding performance than the other prepared MIPs. Accordingly, MIP C was chosen to be applied for selective separation of QA using solid-phase extraction. The selectivity of MIP C towards QA was tested versus its analogues found in coffee (caffeic acid and chlorogenic acid). Molecularly imprinted solid-phase extraction (MISPE) using MIP C as sorbent was then applied for selective extraction of QA from aqueous coffee extract. The applied MISPE was able to retrieve 81.918 +/- 3.027% of QA with a significant reduction in the amount of other components in the extract.
机构:
East China Univ Sci & Technol, Shanghai Key Lab Funct Mat Chem, Shanghai 200237, Peoples R ChinaEast China Univ Sci & Technol, Shanghai Key Lab Funct Mat Chem, Shanghai 200237, Peoples R China
Zhang Yuan
Li Long
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East China Univ Sci & Technol, Shanghai Key Lab Funct Mat Chem, Shanghai 200237, Peoples R ChinaEast China Univ Sci & Technol, Shanghai Key Lab Funct Mat Chem, Shanghai 200237, Peoples R China
Li Long
Su Li-Qiang
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East China Univ Sci & Technol, Shanghai Key Lab Funct Mat Chem, Shanghai 200237, Peoples R ChinaEast China Univ Sci & Technol, Shanghai Key Lab Funct Mat Chem, Shanghai 200237, Peoples R China
Su Li-Qiang
Chu Hong-Tao
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East China Univ Sci & Technol, Shanghai Key Lab Funct Mat Chem, Shanghai 200237, Peoples R ChinaEast China Univ Sci & Technol, Shanghai Key Lab Funct Mat Chem, Shanghai 200237, Peoples R China
Chu Hong-Tao
Sun Lin
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East China Univ Sci & Technol, Shanghai Key Lab Funct Mat Chem, Shanghai 200237, Peoples R ChinaEast China Univ Sci & Technol, Shanghai Key Lab Funct Mat Chem, Shanghai 200237, Peoples R China
Sun Lin
Qin Xiao
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East China Univ Sci & Technol, Shanghai Key Lab Funct Mat Chem, Shanghai 200237, Peoples R ChinaEast China Univ Sci & Technol, Shanghai Key Lab Funct Mat Chem, Shanghai 200237, Peoples R China
Qin Xiao
Du Yi-Ping
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East China Univ Sci & Technol, Shanghai Key Lab Funct Mat Chem, Shanghai 200237, Peoples R ChinaEast China Univ Sci & Technol, Shanghai Key Lab Funct Mat Chem, Shanghai 200237, Peoples R China
机构:
Chinese Acad Sci, Inst Appl Ecol, Shenyang 110015, Peoples R ChinaChinese Acad Sci, Inst Appl Ecol, Shenyang 110015, Peoples R China
Yan-Hong, Wang
Jia-Ping, Huo
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Chinese Acad Sci, Inst Appl Ecol, Shenyang 110015, Peoples R China
Cent S Univ, Inst Chem & Chem Engn, Changsha 410083, Peoples R ChinaChinese Acad Sci, Inst Appl Ecol, Shenyang 110015, Peoples R China
Jia-Ping, Huo
Hong, Zhang
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Chinese Acad Sci, Inst Appl Ecol, Shenyang 110015, Peoples R ChinaChinese Acad Sci, Inst Appl Ecol, Shenyang 110015, Peoples R China
Hong, Zhang
Shi-Cheng, Wang
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Chinese Acad Sci, Inst Appl Ecol, Shenyang 110015, Peoples R ChinaChinese Acad Sci, Inst Appl Ecol, Shenyang 110015, Peoples R China
Shi-Cheng, Wang
Shi-Hui, Si
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Cent S Univ, Inst Chem & Chem Engn, Changsha 410083, Peoples R ChinaChinese Acad Sci, Inst Appl Ecol, Shenyang 110015, Peoples R China
Shi-Hui, Si
Gui-Feng, Lin
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Chinese Acad Sci, Inst Appl Ecol, Shenyang 110015, Peoples R ChinaChinese Acad Sci, Inst Appl Ecol, Shenyang 110015, Peoples R China
Gui-Feng, Lin
Guo-Chen, Li
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Chinese Acad Sci, Inst Appl Ecol, Shenyang 110015, Peoples R ChinaChinese Acad Sci, Inst Appl Ecol, Shenyang 110015, Peoples R China
Guo-Chen, Li
Wei, Qi
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Chinese Acad Sci, Inst Appl Ecol, Shenyang 110015, Peoples R ChinaChinese Acad Sci, Inst Appl Ecol, Shenyang 110015, Peoples R China
机构:
Southern Med Univ, Sch Tradit Chinese Med, Guangzhou 510515, Guangdong, Peoples R ChinaSouthern Med Univ, Sch Tradit Chinese Med, Guangzhou 510515, Guangdong, Peoples R China
Xu, Jianling
Wang, Wenna
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Southern Med Univ, Sch Tradit Chinese Med, Guangzhou 510515, Guangdong, Peoples R China
Beijing Univ Chinese Med, Shenzhen Hosp, Shenzhen 518172, Guangdong, Peoples R ChinaSouthern Med Univ, Sch Tradit Chinese Med, Guangzhou 510515, Guangdong, Peoples R China
Wang, Wenna
Chen, Yixin
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Southern Med Univ, Sch Tradit Chinese Med, Guangzhou 510515, Guangdong, Peoples R ChinaSouthern Med Univ, Sch Tradit Chinese Med, Guangzhou 510515, Guangdong, Peoples R China
Chen, Yixin
Xu, Xiaotian
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Southern Med Univ, Sch Tradit Chinese Med, Guangzhou 510515, Guangdong, Peoples R ChinaSouthern Med Univ, Sch Tradit Chinese Med, Guangzhou 510515, Guangdong, Peoples R China
Xu, Xiaotian
Duan, Ao
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Southern Med Univ, Sch Tradit Chinese Med, Guangzhou 510515, Guangdong, Peoples R ChinaSouthern Med Univ, Sch Tradit Chinese Med, Guangzhou 510515, Guangdong, Peoples R China
Duan, Ao
Zhu, Yongyan
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Southern Med Univ, Sch Tradit Chinese Med, Guangzhou 510515, Guangdong, Peoples R ChinaSouthern Med Univ, Sch Tradit Chinese Med, Guangzhou 510515, Guangdong, Peoples R China
Zhu, Yongyan
Zhu, Quanhong
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Southern Med Univ, Sch Tradit Chinese Med, Guangzhou 510515, Guangdong, Peoples R China
Guangdong Prov Key Lab Chinese Med Pharmaceut, Guangzhou 510515, Guangdong, Peoples R ChinaSouthern Med Univ, Sch Tradit Chinese Med, Guangzhou 510515, Guangdong, Peoples R China