Method for synthesis of selenized artemisia seed polysaccharide with ionic liquid as solvent and catalyst

• Main Authors: BAO AIJUAN, ZHAO YALI, YAO JIAN, WANG JUNLONG, KONG WEIDONG, ZHAO QIAN, LIANG JUNYI, YANG WEN, ZHANG JI
• Format: Patent
• Language: Chinese; English
• Published: 26.01.2018
• Subjects: CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; COMPOSITIONS BASED THEREON; DERIVATIVES THEREOF; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; POLYSACCHARIDES; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; THEIR PREPARATION OR CHEMICAL WORKING-UP

Belonging to the technical field of natural products, the invention discloses a method for preparation of artemisia seed selenium polysaccharide with ionic liquid as a solvent and a catalyst. The method provided by the invention prepares an acidic room temperature ionic liquid capable of dissolving polysaccharide, at the same time, with the ionic liquid acting as a solvent and a catalyst, the method synthesizes the selenized artemisia seed polysaccharide with high selenium content efficiently under a mild condition, the selenium content reaches 7688.9-10372.4microg/g, and the reaction processdoes not cause degradation of polysaccharide. The method provided by the invention has the advantages of environment-friendly reagents and simple reaction process, effectively shortens the time neededby reaction, and has no need for a toxic selenium-containing intermediate. 本发明公开了种离子液体为溶剂和催化剂制备沙蒿硒多糖的方法，属天然产物技术领域。本发明在制备能溶解多糖的酸性室温离子液体的同时，作为溶剂和催化剂，在温和条件下高效合成了高硒含量的硒化沙蒿多糖，硒含量达7688.9~10372.4μg/g，反应过程不会对多糖产生降解。本发明所用试剂环保、反应过程简单，有