凹凸棒石的氨基硅烷化及人参提取物中农残吸附  

Amino-Silanization of Attapulgite and Absorption of Pesticide Residues in Ginseng Extract

作　　者：陈汝珺 王亚茹 付晨伟 陈瑾 陆正清[3] 喻春皓 CHEN Ru-jun;WANG Ya-ru;FU Chen-wei;CHEN Jin;LU Zheng-qing;YU Chun-hao(Department of Pharmaceutical Engineering,Faculty of Chemical Engineering,Huaiyin Institute of Technology,Huai'an Jiangsu 223003,China;Jiangsu Key Laboratory of Regional Resource Exploitation and Medicinal Research,Huai'an Jiangsu 223003,China;Jiangsu Food&Pharmaceutical Science College,Huai'an Jiangsu 223003,China)

机构地区：[1]淮阴工学院化学工程学院制药工程系,江苏淮安223003 [2]江苏省特色资源开发与药用研究重点实验室,江苏淮安223003 [3]江苏食品药品职业技术学院,江苏淮安223003

出　　处：《淮阴工学院学报》2020年第5期42-48,共7页Journal of Huaiyin Institute of Technology

基　　金：江苏省科技厅产学研项目(BY-2016061-22);江苏省高等学校自然科学研究重大项目(18KJA36001);江苏省研究生实践创新计划项目(SJCX17_0697,SJCX18_0899);江苏省大学生创新创业训练计划项目(201711049002Y,201811049095X)。

摘　　要：硅烷改性制备硅烷化凹凸棒石(SMA)以吸附人参提取物中农药残留。为评估SMA对人参根提取物中五氯硝基苯、胺菊酯、毒死蜱、异丙威、霜霉威5种农药残留脱除效果,考察了硅烷改性剂类型、改性剂用量、吸附剂用量、吸附时间对农残吸附效果的影响,并进行了等温吸附机制研究。不同类型SMA对人参提取物农残的吸附效果均较好,其中KH-1161改性凹凸棒石(KH-1161-SMA)的吸附效果最优,对所考察农残的吸附量均在164.42μg/g以上。SMA对5种农药的吸附模型为:胺菊酯、毒死蜱、异丙威、霜霉威遵循Langmuir等温吸附模型,而五氯硝基苯遵循Freundlich等温吸附模型。SMA可作为一种有效脱除人参提取物及其它中药提取物中农药残留的脱除剂,其脱除农残的机制有待深入研究。Silane-modified attapulgite clay(SMA)for removal of pesticide residues in ginseng root extract was prepared with a series of silane coupling agents.The effects of modifier types,dose of modifier,and dose of adsorbent and adsorption time on the adsorption efficient of propamocarb,isoprocarb,quintozine,chlorpyrifos and tetramethirn were investigated.The isothermal adsorption models of SMA were analyzed.Different SMAs had good removals of the pesticides in ginseng extract.Among different SMAs,the attapulgite clay modified by KH-1161(KH-1161-SMA)had the optimal removal of the pesticides in ginseng root extract,and the removal capacity of five pesticide residues was not lower than 164.42μg/g(KH-1161-SMA).The adsorption models of four pesticides such as tetramethirn,isoprocarb,chlorpyrifos and propamocarb,complied with the Langmuir isotherm equation.The adsorption of quintozine was consistent with the Freundlich isotherm adsorption model.SMAs could be used as the pesticide residue remover from ginseng extracts and other extracts from the traditional Chinese Medicines;moreover the removing mechanism of different pesticides will be further studied.

关 键 词：人参提取物 硅烷偶联剂 农残 吸附等温模型 

分 类 号：TS218[轻工技术与工程—粮食、油脂及植物蛋白工程]