Surface molecularly imprinted polymers prepared by two‐step precipitation polymerization for the selective extraction of oleanolic acid from grape pomace extract

Lu Chunxia; Tang Zonggui; Liu Changbin; Ma Xiaomei

摘要

Abstract >Surface molecularly imprinted polymers were successfully prepared by a novel two‐step precipitation polymerization method. The first‐step allowed the formation of 4‐vinylpyridine divinylbenzene and trimethylolpropane trimethacrylate copolymeric microspheres. In the second‐step precipitation polymerization, microspheres were modified with a molecularly imprinting layer of oleanolic acid as template, methacrylic acid as functional monomer, and divinylbenzene/ethylene glycol dimethacrylate as cross‐linker. The obtained polymers had an average diameter of 4.43?μm and a polydispersity index of 1.011; adsorption equilibrium was achieved within 40?min, with adsorption capacity reaching 27.4?mg/g. Subsequently, the polymers were successfully applied as the adsorbents of molecularly imprinted solid‐phase extraction to separate?and purify?the oleanolic acid from grape pomace. The content of oleanolic acid in the grape pomace extract was enhanced from 13.4 to 93.2% after using the molecularly imprinted solid‐phase extraction process. This work provides an efficient way for effective oleanolic acid separation and enrichment from complex matrices, which is especially valuable in industrial production. </abstract> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> <div class="translation abstracttxt"> <span class="zhankaihshouqi fivelineshidden" id="abstract"> <span>机译：</span><Abstract Type =“Main”XML：Lang =“en”> <标题类型=“main”>摘要</标题> >表面通过新型的两步沉淀聚合方法成功制备了分子印迹聚合物。第一步允许形成4-乙烯基吡啶二乙烯基苯和三羟甲基丙烷三甲基丙烯酸酯共聚物。在二步沉淀聚合中，用烯丙烯酸作为模板，甲基丙烯酸作为官能单体的分子压印层进行修饰微球，二乙烯基苯/乙二醇二甲基丙烯酸酯作为交联剂。所得聚合物的平均直径为4.43ΩΩμm和1.011的多分散指数;吸附均衡在40℃内实现，吸附能力达到27.4μm≤mg/ g。随后，将聚合物成功施加为分子压印固相萃取的吸附剂以分离α并纯化葡萄泡沫的渗碳酸。使用分子印迹固相萃取过程后，葡萄渣中提取物中的葡萄果酸中的含量从13.4％增加到93.2％。该作品提供了有效的葡萄糖酸分离和复杂基质富集的有效方法，这在工业生产中特别有价值。</ p> </摘要> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> </div> <div class="record"> <h2 class="all_title" id="enpatent33" >著录项</h2> <ul> <li> <span class="lefttit">来源</span> <div style="width: 86%;vertical-align: text-top;display: inline-block;"> <a href='/journal-foreign-35800/'>《Journal of separation science.》</a> <b style="margin: 0 2px;">|</b><span>2018年第17期</span><b style="margin: 0 2px;">|</b><span>共7页</span> </div> </li> <li> <div class="author"> <span class="lefttit">作者</span> <p id="fAuthorthree" class="threelineshidden zhankaihshouqi"> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Lu Chunxia&option=202" target="_blank" rel="nofollow">Lu Chunxia;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Tang Zonggui&option=202" target="_blank" rel="nofollow">Tang Zonggui;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Liu Changbin&option=202" target="_blank" rel="nofollow">Liu Changbin;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Ma Xiaomei&option=202" target="_blank" rel="nofollow">Ma Xiaomei;</a> </p> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zkzz" style="display: none;">展开▼</span> </div> </li> <li> <div style="display: flex;"> <span class="lefttit">作者单位</span> <div style="position: relative;margin-left: 3px;max-width: 639px;"> <div class="threelineshidden zhankaihshouqi" id="fOrgthree"> <p>Life Science and Technology InstituteYangtze Normal UniversityChongqing P.?R.?China;</p> <p>Analysis and Testing CenterXinjiang Academy of Agriculture and Reclamation ScienceShihezi P.?R.?China;</p> <p>Xinjiang Academy of Agriculture and Reclamation Science/Key Laboratories of Sheep Breeding and ReproduceShihezi P.?R.?China;</p> <p>Xinjiang Academy of Agriculture and Reclamation Science/Key Laboratories of Sheep Breeding and ReproduceShihezi P.?R.?China;</p> </div> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zhdw" style="display: none;">展开▼</span> </div> </div> </li> <li > <span class="lefttit">收录信息</span> <span style="width: 86%;vertical-align: text-top;display: inline-block;"></span> </li> <li> <span class="lefttit">原文格式</span> <span>PDF</span> </li> <li> <span class="lefttit">正文语种</span> <span>eng</span> </li> <li> <span class="lefttit">中图分类</span> <span><a href="https://www.zhangqiaokeyan.com/clc/159.html" title="化学">化学;</a></span> </li> <li class="antistop"> <span class="lefttit">关键词</span> <p style="width: 86%;vertical-align: text-top;"> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=molecularly imprinted polymers&option=203" rel="nofollow">molecularly imprinted polymers;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=oleanolic acid&option=203" rel="nofollow">oleanolic acid;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=two‐step precipitation polymerization&option=203" rel="nofollow">two‐step precipitation polymerization;</a> </p> <div class="translation"> 机译：分子印迹聚合物;烯醇酸;两步沉淀聚合; </div> </li> </ul> </div> </div> <div class="literature cardcommon"> <div class="similarity "> <h3 class="all_title" 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LIU Wei-feng</a> <span> <a href="/conference-cn-66516/" target="_blank" rel="nofollow" class="tuijian_authcolor"> . 第十三届全国新型炭材料学术研讨会 </a> <span> <span> . 2017</span> </span> </div> </li> <li> <div> <b>7. </b><a class="enjiyixqcontent" href="/academic-degree-domestic_mphd_thesis/020314616923.html">抗原决定簇表面分子印迹制备用于选择性提取多肽及蛋白的人工抗体</a> <b>[A] </b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=杨芳芳&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 杨芳芳</a> <span> . 2015</span> </span> </div> </li> </ul> <ul style="display: none;"> <li> <div> <b>1. </b><a class="enjiyixqcontent" href="/patent-detail/06120107126898.html">多孔硅胶微球表面雷公藤提取物分子印迹聚合物及其制备和应用</a> <b>[P]</b> . <span> 中国专利： CN104558446A </span> <span> . 2015-04-29</span> </div> </li> <li> <div> <b>2. </b><a class="enjiyixqcontent" href="/patent-detail/061203450671.html">一种用于选择性吸附盐酸环丙沙星的苯乙烯-二乙烯基苯表面分子印迹聚合物的制备方法</a> <b>[P]</b> . <span> 中国专利： CN107759736B </span> <span> . 2019.08.16</span> </div> </li> <li> <div> <b>3. </b><a class="enjiyixqcontent" href="/patent-detail/06130403824121.html">MOLECULARLY IMPRINTED POLYMER PREPARED BY MASS POLYMERIZATION FOR NITROFURANTOYN FOR ACHIEVING SOLID-PHASE EXTRACTION COLUMNS AND ELECTROCHEMICAL SENSORS</a> <b>[P]</b> . <span> 外国专利：  RO133210A2 </span> <span> . 2019-03-29</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：硝基呋喃酮质量聚合制备的分子印迹聚合物，用于固相萃取柱和电化学传感器 </span> </p> </li> <li> <div> <b>4. </b><a class="enjiyixqcontent" href="/patent-detail/06130452528962.html">molecularly imprinted microspheres prepared using precipitation polymerization</a> <b>[P]</b> . <span> 外国专利：  SE9900121D0 </span> <span> . 1999-01-14</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> 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