Highly Efficient Heavy-Metal-Ion Removal from Shellfish Processing Liquid with Low Protein and Polysaccharide Loss by Hybrid Mesoporous Silica Diol-APDC-SBA15  

作　　者：QI Yanxia SONG Yang LIU Chang QI Shizhe WANG Haibo CAO Jijuan ZHAO Qiancheng 

机构地区：[1]College of Food Science and Engineering,Dalian Ocean University,Dalian 116023,China [2]Liaoning Provincial Aquatic Products Analyzing,Testing and Processing Technology Scientific Service Center,Dalian 116023,China [3]Key Laboratory of Biotechnology and Bioresources Utilization of Ministry of Education,Dalian Minzu University,Dalian 116600,China [4]Collaborative Innovation Center of Seafood Deep Processing,Dalian Polytechnic University,Dalian 116034,China [5]Dalian Key Laboratory of Marine Bioactive Substances Development and High Value Utilization,Dalian 116034,China

出　　处：《Journal of Ocean University of China》2023年第1期221-228,共8页中国海洋大学学报（英文版）

基　　金：supported by the National Key R&D Program of China(No.2018YFD0901004);the National Natural Science Foundation of China(No.31601538);the Key Science and Technology Program of Liaoning Province(No.2020JH1/10200001);the Fundamental Research Foundation of Education Department of Liaoning Province(No.JL202008);the Science&Technology Innovation Foundation of Dalian(No.2019J12SN61).

摘　　要：Heavy metal ions in shellfish products are harmful to human health,and their removal with low nutrient loss remains challenging.Herein,a new type of mesoporous silica(SBA15),modified internally with ammonium pyrrolidine dithiocarbamate(APDC)and externally with alkyl-diol groups,which was named as Diol-APDC-SBA15,was successfully developed and characterized by powder X-ray diffraction patterns,nitrogen adsorption,and Fourier transform infrared spectroscopy.The solutions with lead,chromium,cadmium,and copper were used to investigate the adsorption capacity of Diol-APDC-SBA15.Diol-APDC-SBA15 was adopted to remove heavy metals from cooking liquids of clams(Ruditapes philippinarum),hydrolysate liquids of oysters(Ostrea gigas Thunberg),and polysaccharide solution from the cooking liquid of R.philippinarum.The efficiencies of removing heavy metal ions and the loss rates of proteins and polysaccharides were examined.The results showed that the adsorption capacities of Diol-APDCSBA15 for Pb,Cr,Cd,and Cu in standard heavy-metal solutions were 161.4,166.1,29.6,and 60.2mgg^(−1),respectively.The removal efficiency of Diol-APDC-SBA15 for Pb in the three shellfish processing liquids ranged from 60.5%to 99.6%.The Cr removal efficiency was above 99.9%in the oyster hydrolysate liquid.Meanwhile,the percentages of polysaccharide loss were 5.5%and 3.7%in the cooking liquid of clam and polysaccharide solution,respectively,and the protein loss was 1.2%in the oyster hydrolysate liquid.Therefore,the Diol-APDC-SBA15 material exhibits a great potential application in the removal of heavy metals from shellfish processing liquids with low losses of proteins and polysaccharides.

关 键 词：heavy-metal removal modified mesoporous silica shellfish processing liquid protein POLYSACCHARIDE 

分 类 号：TS254.4[轻工技术与工程—水产品加工及贮藏工程]